/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/popl20-more-buffer-mult.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:48:52,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:48:52,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:48:52,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 22:48:52,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 22:48:52,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 22:48:52,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 22:48:52,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 22:48:52,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 22:48:52,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 22:48:52,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 22:48:52,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 22:48:52,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 22:48:52,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 22:48:52,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 22:48:52,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 22:48:52,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 22:48:52,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 22:48:52,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 22:48:52,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 22:48:52,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 22:48:52,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 22:48:52,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 22:48:52,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 22:48:52,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 22:48:52,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:48:52,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:48:52,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:48:52,735 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 22:48:52,757 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:48:52,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:48:52,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:48:52,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:48:52,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:48:52,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:48:52,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:48:52,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:48:52,759 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:48:52,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:48:52,760 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:48:52,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:48:52,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:48:52,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:48:52,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:48:52,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:48:52,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:48:52,760 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:48:52,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:48:52,760 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:48:52,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:48:52,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:48:52,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:48:52,761 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:48:52,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:48:52,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:48:52,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:48:52,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:48:52,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:48:52,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:48:52,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:48:52,762 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:48:52,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:48:52,763 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:48:52,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:48:52,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:48:52,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:48:52,981 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:48:52,981 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:48:52,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c [2022-02-10 22:48:53,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05da27a03/66b792b98d3c4a48a0d99589aa710251/FLAG99a2fa885 [2022-02-10 22:48:53,413 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:48:53,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c [2022-02-10 22:48:53,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05da27a03/66b792b98d3c4a48a0d99589aa710251/FLAG99a2fa885 [2022-02-10 22:48:53,821 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05da27a03/66b792b98d3c4a48a0d99589aa710251 [2022-02-10 22:48:53,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:48:53,824 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:48:53,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:48:53,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:48:53,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:48:53,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:48:53" (1/1) ... [2022-02-10 22:48:53,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a3c306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:48:53, skipping insertion in model container [2022-02-10 22:48:53,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:48:53" (1/1) ... [2022-02-10 22:48:53,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:48:53,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:48:54,037 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/popl20-more-buffer-mult.wvr.c[4218,4231] [2022-02-10 22:48:54,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:48:54,053 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:48:54,085 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/popl20-more-buffer-mult.wvr.c[4218,4231] [2022-02-10 22:48:54,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:48:54,100 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:48:54,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:48:54 WrapperNode [2022-02-10 22:48:54,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:48:54,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:48:54,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:48:54,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:48:54,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:48:54" (1/1) ... [2022-02-10 22:48:54,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:48:54" (1/1) ... [2022-02-10 22:48:54,144 INFO L137 Inliner]: procedures = 27, calls = 80, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 307 [2022-02-10 22:48:54,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:48:54,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:48:54,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:48:54,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:48:54,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:48:54" (1/1) ... [2022-02-10 22:48:54,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:48:54" (1/1) ... [2022-02-10 22:48:54,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:48:54" (1/1) ... [2022-02-10 22:48:54,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:48:54" (1/1) ... [2022-02-10 22:48:54,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:48:54" (1/1) ... [2022-02-10 22:48:54,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:48:54" (1/1) ... [2022-02-10 22:48:54,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:48:54" (1/1) ... [2022-02-10 22:48:54,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:48:54,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:48:54,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:48:54,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:48:54,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:48:54" (1/1) ... [2022-02-10 22:48:54,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:48:54,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:48:54,228 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 22:48:54,235 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 22:48:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:48:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:48:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:48:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:48:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 22:48:54,255 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 22:48:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 22:48:54,256 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 22:48:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-10 22:48:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-10 22:48:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-10 22:48:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-10 22:48:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:48:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 22:48:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 22:48:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-10 22:48:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:48:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:48:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:48:54,258 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 22:48:54,365 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:48:54,366 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:48:54,597 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:48:54,778 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:48:54,778 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-02-10 22:48:54,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:48:54 BoogieIcfgContainer [2022-02-10 22:48:54,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:48:54,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:48:54,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:48:54,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:48:54,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:48:53" (1/3) ... [2022-02-10 22:48:54,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab01416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:48:54, skipping insertion in model container [2022-02-10 22:48:54,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:48:54" (2/3) ... [2022-02-10 22:48:54,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab01416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:48:54, skipping insertion in model container [2022-02-10 22:48:54,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:48:54" (3/3) ... [2022-02-10 22:48:54,801 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult.wvr.c [2022-02-10 22:48:54,804 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:48:54,804 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:48:54,804 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:48:54,804 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:48:54,877 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,878 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,878 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,878 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,879 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,879 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,879 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,880 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,880 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,880 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,880 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,880 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,880 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,880 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,881 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,881 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,882 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,882 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,883 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,883 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,883 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,883 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,885 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,885 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,885 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,885 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,885 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,886 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,886 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,886 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,886 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,886 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,886 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,886 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,887 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,887 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,887 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,887 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,887 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,887 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,889 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,889 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,889 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,889 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,889 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,890 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,890 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,890 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,890 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,891 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,892 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,892 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,892 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,892 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,892 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,892 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,893 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,893 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,893 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,893 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,893 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,893 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,893 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,893 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,896 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,896 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,896 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,896 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,896 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,896 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,896 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,897 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,897 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,897 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,899 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,901 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,902 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,902 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,903 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,903 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,904 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,904 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,905 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,905 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,906 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,907 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,907 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,907 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,907 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,907 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,907 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,908 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,908 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,908 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,908 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,908 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,908 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,908 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,908 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,909 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,909 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,909 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,909 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,909 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,909 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,909 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,910 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,910 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,912 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,912 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,913 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,913 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,913 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,913 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,913 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,913 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,913 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,913 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,913 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,913 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,913 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,914 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,914 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,914 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,914 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,914 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,914 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,914 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,915 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,915 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,915 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,915 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,915 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,915 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,915 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,915 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,916 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,916 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,916 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,916 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,916 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,916 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,916 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,916 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,917 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,917 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,917 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,917 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,917 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,917 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:48:54,929 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-10 22:48:54,957 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:48:54,963 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 22:48:54,963 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-10 22:48:54,977 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 226 places, 231 transitions, 494 flow [2022-02-10 22:48:55,610 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 17148 states, 17147 states have (on average 4.976205750277017) internal successors, (85327), 17147 states have internal predecessors, (85327), 0 states have call successors, (0), 0 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 22:48:55,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 17148 states, 17147 states have (on average 4.976205750277017) internal successors, (85327), 17147 states have internal predecessors, (85327), 0 states have call successors, (0), 0 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 22:48:55,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-10 22:48:55,806 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:48:55,807 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:48:55,808 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:48:55,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:48:55,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1660841253, now seen corresponding path program 1 times [2022-02-10 22:48:55,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:48:55,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759693788] [2022-02-10 22:48:55,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:48:55,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:48:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:48:56,052 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 22:48:56,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:48:56,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759693788] [2022-02-10 22:48:56,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759693788] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:48:56,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:48:56,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:48:56,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842964616] [2022-02-10 22:48:56,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:48:56,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:48:56,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:48:56,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:48:56,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:48:56,166 INFO L87 Difference]: Start difference. First operand has 17148 states, 17147 states have (on average 4.976205750277017) internal successors, (85327), 17147 states have internal predecessors, (85327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 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 22:48:56,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:48:56,409 INFO L93 Difference]: Finished difference Result 17148 states and 76913 transitions. [2022-02-10 22:48:56,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:48:56,411 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2022-02-10 22:48:56,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:48:56,736 INFO L225 Difference]: With dead ends: 17148 [2022-02-10 22:48:56,736 INFO L226 Difference]: Without dead ends: 17142 [2022-02-10 22:48:56,738 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:48:56,741 INFO L934 BasicCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:48:56,741 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:48:56,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17142 states. [2022-02-10 22:48:57,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17142 to 17142. [2022-02-10 22:48:57,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17142 states, 17141 states have (on average 4.486727728837291) internal successors, (76907), 17141 states have internal predecessors, (76907), 0 states have call successors, (0), 0 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 22:48:57,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17142 states to 17142 states and 76907 transitions. [2022-02-10 22:48:57,635 INFO L78 Accepts]: Start accepts. Automaton has 17142 states and 76907 transitions. Word has length 168 [2022-02-10 22:48:57,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:48:57,635 INFO L470 AbstractCegarLoop]: Abstraction has 17142 states and 76907 transitions. [2022-02-10 22:48:57,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 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 22:48:57,635 INFO L276 IsEmpty]: Start isEmpty. Operand 17142 states and 76907 transitions. [2022-02-10 22:48:57,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-10 22:48:57,687 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:48:57,687 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:48:57,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:48:57,688 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:48:57,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:48:57,688 INFO L85 PathProgramCache]: Analyzing trace with hash -858370885, now seen corresponding path program 1 times [2022-02-10 22:48:57,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:48:57,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653083822] [2022-02-10 22:48:57,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:48:57,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:48:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:48:58,001 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 22:48:58,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:48:58,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653083822] [2022-02-10 22:48:58,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653083822] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:48:58,002 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:48:58,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:48:58,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806851081] [2022-02-10 22:48:58,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:48:58,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:48:58,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:48:58,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:48:58,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:48:58,004 INFO L87 Difference]: Start difference. First operand 17142 states and 76907 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 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 22:48:58,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:48:58,554 INFO L93 Difference]: Finished difference Result 28991 states and 130864 transitions. [2022-02-10 22:48:58,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:48:58,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2022-02-10 22:48:58,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:48:58,835 INFO L225 Difference]: With dead ends: 28991 [2022-02-10 22:48:58,835 INFO L226 Difference]: Without dead ends: 26429 [2022-02-10 22:48:58,838 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:48:58,839 INFO L934 BasicCegarLoop]: 180 mSDtfsCounter, 28 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:48:58,839 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 578 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:48:58,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26429 states. [2022-02-10 22:48:59,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26429 to 22929. [2022-02-10 22:48:59,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22929 states, 22928 states have (on average 4.487002791346825) internal successors, (102878), 22928 states have internal predecessors, (102878), 0 states have call successors, (0), 0 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 22:48:59,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22929 states to 22929 states and 102878 transitions. [2022-02-10 22:48:59,917 INFO L78 Accepts]: Start accepts. Automaton has 22929 states and 102878 transitions. Word has length 168 [2022-02-10 22:48:59,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:48:59,920 INFO L470 AbstractCegarLoop]: Abstraction has 22929 states and 102878 transitions. [2022-02-10 22:48:59,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 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 22:48:59,921 INFO L276 IsEmpty]: Start isEmpty. Operand 22929 states and 102878 transitions. [2022-02-10 22:49:00,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:49:00,012 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:00,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:00,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:49:00,013 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:49:00,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:00,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1749817996, now seen corresponding path program 1 times [2022-02-10 22:49:00,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:00,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111336419] [2022-02-10 22:49:00,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:00,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:00,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:49:00,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:00,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111336419] [2022-02-10 22:49:00,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111336419] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:00,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:00,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:49:00,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640905549] [2022-02-10 22:49:00,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:00,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:49:00,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:00,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:49:00,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:49:00,077 INFO L87 Difference]: Start difference. First operand 22929 states and 102878 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 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 22:49:00,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:00,452 INFO L93 Difference]: Finished difference Result 33991 states and 150867 transitions. [2022-02-10 22:49:00,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:49:00,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-02-10 22:49:00,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:00,801 INFO L225 Difference]: With dead ends: 33991 [2022-02-10 22:49:00,801 INFO L226 Difference]: Without dead ends: 32248 [2022-02-10 22:49:00,801 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:49:00,806 INFO L934 BasicCegarLoop]: 181 mSDtfsCounter, 37 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:00,808 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 275 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:49:00,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32248 states. [2022-02-10 22:49:01,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32248 to 27007. [2022-02-10 22:49:01,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27007 states, 27006 states have (on average 4.477301340442865) internal successors, (120914), 27006 states have internal predecessors, (120914), 0 states have call successors, (0), 0 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 22:49:01,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27007 states to 27007 states and 120914 transitions. [2022-02-10 22:49:01,879 INFO L78 Accepts]: Start accepts. Automaton has 27007 states and 120914 transitions. Word has length 171 [2022-02-10 22:49:01,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:01,879 INFO L470 AbstractCegarLoop]: Abstraction has 27007 states and 120914 transitions. [2022-02-10 22:49:01,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 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 22:49:01,880 INFO L276 IsEmpty]: Start isEmpty. Operand 27007 states and 120914 transitions. [2022-02-10 22:49:01,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:49:01,973 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:01,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:01,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:49:01,974 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:49:01,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:01,974 INFO L85 PathProgramCache]: Analyzing trace with hash 357358932, now seen corresponding path program 1 times [2022-02-10 22:49:01,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:01,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581470471] [2022-02-10 22:49:01,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:01,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:49:02,024 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:02,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581470471] [2022-02-10 22:49:02,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581470471] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:02,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:02,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:49:02,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898261729] [2022-02-10 22:49:02,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:02,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:49:02,039 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:02,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:49:02,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:49:02,040 INFO L87 Difference]: Start difference. First operand 27007 states and 120914 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 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 22:49:02,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:02,469 INFO L93 Difference]: Finished difference Result 39699 states and 175257 transitions. [2022-02-10 22:49:02,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:49:02,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-02-10 22:49:02,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:02,831 INFO L225 Difference]: With dead ends: 39699 [2022-02-10 22:49:02,832 INFO L226 Difference]: Without dead ends: 37344 [2022-02-10 22:49:02,832 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:49:02,832 INFO L934 BasicCegarLoop]: 189 mSDtfsCounter, 49 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:02,833 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 282 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:49:02,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37344 states. [2022-02-10 22:49:03,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37344 to 32994. [2022-02-10 22:49:03,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32994 states, 32993 states have (on average 4.431424847694966) internal successors, (146206), 32993 states have internal predecessors, (146206), 0 states have call successors, (0), 0 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 22:49:04,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32994 states to 32994 states and 146206 transitions. [2022-02-10 22:49:04,009 INFO L78 Accepts]: Start accepts. Automaton has 32994 states and 146206 transitions. Word has length 171 [2022-02-10 22:49:04,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:04,009 INFO L470 AbstractCegarLoop]: Abstraction has 32994 states and 146206 transitions. [2022-02-10 22:49:04,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 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 22:49:04,009 INFO L276 IsEmpty]: Start isEmpty. Operand 32994 states and 146206 transitions. [2022-02-10 22:49:04,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-02-10 22:49:04,092 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:04,092 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:04,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 22:49:04,092 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:49:04,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:04,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2130367443, now seen corresponding path program 1 times [2022-02-10 22:49:04,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:04,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410281330] [2022-02-10 22:49:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:04,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:04,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:49:04,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:04,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410281330] [2022-02-10 22:49:04,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410281330] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:04,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:04,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:49:04,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415104335] [2022-02-10 22:49:04,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:04,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:49:04,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:04,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:49:04,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:49:04,181 INFO L87 Difference]: Start difference. First operand 32994 states and 146206 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 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 22:49:04,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:04,740 INFO L93 Difference]: Finished difference Result 46746 states and 202605 transitions. [2022-02-10 22:49:04,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:49:04,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 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 175 [2022-02-10 22:49:04,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:04,919 INFO L225 Difference]: With dead ends: 46746 [2022-02-10 22:49:04,920 INFO L226 Difference]: Without dead ends: 42569 [2022-02-10 22:49:04,920 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:49:04,920 INFO L934 BasicCegarLoop]: 174 mSDtfsCounter, 446 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:04,920 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 637 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:05,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42569 states. [2022-02-10 22:49:06,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42569 to 36810. [2022-02-10 22:49:06,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36810 states, 36809 states have (on average 4.412208970632182) internal successors, (162409), 36809 states have internal predecessors, (162409), 0 states have call successors, (0), 0 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 22:49:06,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36810 states to 36810 states and 162409 transitions. [2022-02-10 22:49:06,506 INFO L78 Accepts]: Start accepts. Automaton has 36810 states and 162409 transitions. Word has length 175 [2022-02-10 22:49:06,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:06,506 INFO L470 AbstractCegarLoop]: Abstraction has 36810 states and 162409 transitions. [2022-02-10 22:49:06,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 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 22:49:06,507 INFO L276 IsEmpty]: Start isEmpty. Operand 36810 states and 162409 transitions. [2022-02-10 22:49:06,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-02-10 22:49:06,654 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:06,654 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:06,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 22:49:06,655 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:49:06,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:06,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1436166671, now seen corresponding path program 1 times [2022-02-10 22:49:06,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:06,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145024616] [2022-02-10 22:49:06,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:06,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:06,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:49:06,715 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:06,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145024616] [2022-02-10 22:49:06,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145024616] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:06,715 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:06,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:49:06,715 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003115477] [2022-02-10 22:49:06,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:06,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:49:06,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:06,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:49:06,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:49:06,716 INFO L87 Difference]: Start difference. First operand 36810 states and 162409 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 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 22:49:07,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:07,447 INFO L93 Difference]: Finished difference Result 50446 states and 217962 transitions. [2022-02-10 22:49:07,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:49:07,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 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 175 [2022-02-10 22:49:07,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:07,662 INFO L225 Difference]: With dead ends: 50446 [2022-02-10 22:49:07,666 INFO L226 Difference]: Without dead ends: 46323 [2022-02-10 22:49:07,666 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:49:07,671 INFO L934 BasicCegarLoop]: 174 mSDtfsCounter, 173 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:07,677 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 631 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:07,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46323 states. [2022-02-10 22:49:08,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46323 to 40192. [2022-02-10 22:49:08,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40192 states, 40191 states have (on average 4.399865641561544) internal successors, (176835), 40191 states have internal predecessors, (176835), 0 states have call successors, (0), 0 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 22:49:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40192 states to 40192 states and 176835 transitions. [2022-02-10 22:49:09,104 INFO L78 Accepts]: Start accepts. Automaton has 40192 states and 176835 transitions. Word has length 175 [2022-02-10 22:49:09,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:09,104 INFO L470 AbstractCegarLoop]: Abstraction has 40192 states and 176835 transitions. [2022-02-10 22:49:09,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 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 22:49:09,104 INFO L276 IsEmpty]: Start isEmpty. Operand 40192 states and 176835 transitions. [2022-02-10 22:49:09,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:49:09,223 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:09,224 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:09,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 22:49:09,224 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:49:09,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:09,224 INFO L85 PathProgramCache]: Analyzing trace with hash -500393833, now seen corresponding path program 1 times [2022-02-10 22:49:09,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:09,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552104088] [2022-02-10 22:49:09,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:09,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:09,729 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:09,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:09,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552104088] [2022-02-10 22:49:09,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552104088] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:09,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:09,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 22:49:09,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433527941] [2022-02-10 22:49:09,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:09,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 22:49:09,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:09,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 22:49:09,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:49:09,730 INFO L87 Difference]: Start difference. First operand 40192 states and 176835 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:10,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:10,262 INFO L93 Difference]: Finished difference Result 52975 states and 231276 transitions. [2022-02-10 22:49:10,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:49:10,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-10 22:49:10,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:10,767 INFO L225 Difference]: With dead ends: 52975 [2022-02-10 22:49:10,767 INFO L226 Difference]: Without dead ends: 52291 [2022-02-10 22:49:10,767 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:49:10,768 INFO L934 BasicCegarLoop]: 251 mSDtfsCounter, 361 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:10,768 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 965 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:10,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52291 states. [2022-02-10 22:49:11,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52291 to 40084. [2022-02-10 22:49:11,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40084 states, 40083 states have (on average 4.39907192575406) internal successors, (176328), 40083 states have internal predecessors, (176328), 0 states have call successors, (0), 0 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 22:49:12,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40084 states to 40084 states and 176328 transitions. [2022-02-10 22:49:12,371 INFO L78 Accepts]: Start accepts. Automaton has 40084 states and 176328 transitions. Word has length 182 [2022-02-10 22:49:12,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:12,372 INFO L470 AbstractCegarLoop]: Abstraction has 40084 states and 176328 transitions. [2022-02-10 22:49:12,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:12,372 INFO L276 IsEmpty]: Start isEmpty. Operand 40084 states and 176328 transitions. [2022-02-10 22:49:12,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:49:12,482 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:12,487 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:12,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 22:49:12,488 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:49:12,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:12,493 INFO L85 PathProgramCache]: Analyzing trace with hash 170108027, now seen corresponding path program 2 times [2022-02-10 22:49:12,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:12,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962024072] [2022-02-10 22:49:12,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:12,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:12,809 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:12,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:12,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962024072] [2022-02-10 22:49:12,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962024072] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:12,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624505459] [2022-02-10 22:49:12,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:49:12,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:12,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:12,812 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:49:12,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 22:49:12,932 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:49:12,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:49:12,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 22:49:12,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:49:13,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:13,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:49:14,256 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:14,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624505459] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:14,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-10 22:49:14,257 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9, 7] total 18 [2022-02-10 22:49:14,257 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475623019] [2022-02-10 22:49:14,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:14,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:49:14,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:14,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:49:14,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:49:14,258 INFO L87 Difference]: Start difference. First operand 40084 states and 176328 transitions. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:15,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:15,050 INFO L93 Difference]: Finished difference Result 69793 states and 299194 transitions. [2022-02-10 22:49:15,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 22:49:15,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-10 22:49:15,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:15,458 INFO L225 Difference]: With dead ends: 69793 [2022-02-10 22:49:15,458 INFO L226 Difference]: Without dead ends: 68325 [2022-02-10 22:49:15,459 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 355 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:49:15,459 INFO L934 BasicCegarLoop]: 255 mSDtfsCounter, 753 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:15,459 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [753 Valid, 822 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:15,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68325 states. [2022-02-10 22:49:16,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68325 to 42700. [2022-02-10 22:49:16,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42700 states, 42699 states have (on average 4.429447996440198) internal successors, (189133), 42699 states have internal predecessors, (189133), 0 states have call successors, (0), 0 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 22:49:17,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42700 states to 42700 states and 189133 transitions. [2022-02-10 22:49:17,107 INFO L78 Accepts]: Start accepts. Automaton has 42700 states and 189133 transitions. Word has length 182 [2022-02-10 22:49:17,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:17,108 INFO L470 AbstractCegarLoop]: Abstraction has 42700 states and 189133 transitions. [2022-02-10 22:49:17,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:17,108 INFO L276 IsEmpty]: Start isEmpty. Operand 42700 states and 189133 transitions. [2022-02-10 22:49:17,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:49:17,452 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:17,459 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:17,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-10 22:49:17,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:17,679 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:49:17,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:17,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1433378109, now seen corresponding path program 3 times [2022-02-10 22:49:17,679 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:17,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132047155] [2022-02-10 22:49:17,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:17,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:17,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:17,875 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:17,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132047155] [2022-02-10 22:49:17,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132047155] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:17,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622890008] [2022-02-10 22:49:17,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:49:17,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:17,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:17,877 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:49:17,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 22:49:17,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-10 22:49:17,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:49:17,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 22:49:18,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:49:18,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:18,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:49:18,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622890008] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:18,716 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:49:18,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-02-10 22:49:18,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36303881] [2022-02-10 22:49:18,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:18,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:49:18,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:18,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:49:18,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-02-10 22:49:18,717 INFO L87 Difference]: Start difference. First operand 42700 states and 189133 transitions. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:19,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:19,819 INFO L93 Difference]: Finished difference Result 81961 states and 355301 transitions. [2022-02-10 22:49:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 22:49:19,820 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-10 22:49:19,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:20,449 INFO L225 Difference]: With dead ends: 81961 [2022-02-10 22:49:20,449 INFO L226 Difference]: Without dead ends: 81430 [2022-02-10 22:49:20,449 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:49:20,450 INFO L934 BasicCegarLoop]: 246 mSDtfsCounter, 590 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:20,450 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [590 Valid, 1115 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:49:20,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81430 states. [2022-02-10 22:49:22,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81430 to 43075. [2022-02-10 22:49:22,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43075 states, 43074 states have (on average 4.427171843803687) internal successors, (190696), 43074 states have internal predecessors, (190696), 0 states have call successors, (0), 0 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 22:49:22,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43075 states to 43075 states and 190696 transitions. [2022-02-10 22:49:22,274 INFO L78 Accepts]: Start accepts. Automaton has 43075 states and 190696 transitions. Word has length 182 [2022-02-10 22:49:22,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:22,278 INFO L470 AbstractCegarLoop]: Abstraction has 43075 states and 190696 transitions. [2022-02-10 22:49:22,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:22,278 INFO L276 IsEmpty]: Start isEmpty. Operand 43075 states and 190696 transitions. [2022-02-10 22:49:22,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:49:22,388 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:22,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:22,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 22:49:22,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-10 22:49:22,604 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:49:22,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:22,604 INFO L85 PathProgramCache]: Analyzing trace with hash -560270877, now seen corresponding path program 4 times [2022-02-10 22:49:22,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:22,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178826227] [2022-02-10 22:49:22,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:22,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:23,048 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:23,048 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:23,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178826227] [2022-02-10 22:49:23,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178826227] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:23,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485934276] [2022-02-10 22:49:23,048 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:49:23,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:23,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:23,050 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:49:23,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 22:49:23,177 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:49:23,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:49:23,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-10 22:49:23,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:49:23,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:23,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:49:24,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:49:24,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485934276] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:49:24,138 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:49:24,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 9] total 19 [2022-02-10 22:49:24,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119901665] [2022-02-10 22:49:24,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:49:24,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:49:24,139 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:24,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:49:24,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:49:24,140 INFO L87 Difference]: Start difference. First operand 43075 states and 190696 transitions. Second operand has 19 states, 19 states have (on average 23.473684210526315) internal successors, (446), 19 states have internal predecessors, (446), 0 states have call successors, (0), 0 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 22:49:26,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:26,275 INFO L93 Difference]: Finished difference Result 102547 states and 440711 transitions. [2022-02-10 22:49:26,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-10 22:49:26,275 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 23.473684210526315) internal successors, (446), 19 states have internal predecessors, (446), 0 states have call successors, (0), 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 182 [2022-02-10 22:49:26,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:26,737 INFO L225 Difference]: With dead ends: 102547 [2022-02-10 22:49:26,737 INFO L226 Difference]: Without dead ends: 98123 [2022-02-10 22:49:26,738 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 353 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=568, Invalid=1882, Unknown=0, NotChecked=0, Total=2450 [2022-02-10 22:49:26,738 INFO L934 BasicCegarLoop]: 304 mSDtfsCounter, 2113 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2113 SdHoareTripleChecker+Valid, 2299 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:26,738 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2113 Valid, 2299 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:49:26,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98123 states. [2022-02-10 22:49:28,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98123 to 40823. [2022-02-10 22:49:28,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40823 states, 40822 states have (on average 4.406423007201999) internal successors, (179879), 40822 states have internal predecessors, (179879), 0 states have call successors, (0), 0 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 22:49:28,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40823 states to 40823 states and 179879 transitions. [2022-02-10 22:49:28,957 INFO L78 Accepts]: Start accepts. Automaton has 40823 states and 179879 transitions. Word has length 182 [2022-02-10 22:49:28,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:28,957 INFO L470 AbstractCegarLoop]: Abstraction has 40823 states and 179879 transitions. [2022-02-10 22:49:28,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 23.473684210526315) internal successors, (446), 19 states have internal predecessors, (446), 0 states have call successors, (0), 0 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 22:49:28,958 INFO L276 IsEmpty]: Start isEmpty. Operand 40823 states and 179879 transitions. [2022-02-10 22:49:29,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:49:29,058 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:29,058 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:29,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-10 22:49:29,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:29,272 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:49:29,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:29,272 INFO L85 PathProgramCache]: Analyzing trace with hash 975414789, now seen corresponding path program 5 times [2022-02-10 22:49:29,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:29,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693016475] [2022-02-10 22:49:29,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:29,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:29,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:29,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:29,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693016475] [2022-02-10 22:49:29,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693016475] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:29,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317179416] [2022-02-10 22:49:29,484 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 22:49:29,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:29,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:29,485 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:49:29,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 22:49:29,593 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:49:29,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:49:29,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-10 22:49:29,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:49:30,167 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:30,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:49:30,750 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:49:30,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317179416] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:30,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-10 22:49:30,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 7] total 19 [2022-02-10 22:49:30,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75891983] [2022-02-10 22:49:30,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:30,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 22:49:30,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:30,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 22:49:30,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:49:30,753 INFO L87 Difference]: Start difference. First operand 40823 states and 179879 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:32,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:32,001 INFO L93 Difference]: Finished difference Result 83373 states and 355902 transitions. [2022-02-10 22:49:32,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:49:32,001 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-10 22:49:32,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:32,344 INFO L225 Difference]: With dead ends: 83373 [2022-02-10 22:49:32,344 INFO L226 Difference]: Without dead ends: 82101 [2022-02-10 22:49:32,344 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 353 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=281, Invalid=1279, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:49:32,345 INFO L934 BasicCegarLoop]: 283 mSDtfsCounter, 1720 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:32,345 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1720 Valid, 1154 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:49:32,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82101 states. [2022-02-10 22:49:33,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82101 to 38048. [2022-02-10 22:49:34,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38048 states, 38047 states have (on average 4.380581911845875) internal successors, (166668), 38047 states have internal predecessors, (166668), 0 states have call successors, (0), 0 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 22:49:34,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38048 states to 38048 states and 166668 transitions. [2022-02-10 22:49:34,426 INFO L78 Accepts]: Start accepts. Automaton has 38048 states and 166668 transitions. Word has length 182 [2022-02-10 22:49:34,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:34,426 INFO L470 AbstractCegarLoop]: Abstraction has 38048 states and 166668 transitions. [2022-02-10 22:49:34,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:34,427 INFO L276 IsEmpty]: Start isEmpty. Operand 38048 states and 166668 transitions. [2022-02-10 22:49:34,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:49:34,619 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:34,619 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:34,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 22:49:34,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:34,820 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:49:34,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:34,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1759381019, now seen corresponding path program 6 times [2022-02-10 22:49:34,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:34,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936161549] [2022-02-10 22:49:34,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:34,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:35,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:35,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:35,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936161549] [2022-02-10 22:49:35,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936161549] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:35,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:35,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-10 22:49:35,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836399315] [2022-02-10 22:49:35,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:35,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 22:49:35,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:35,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 22:49:35,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:49:35,089 INFO L87 Difference]: Start difference. First operand 38048 states and 166668 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:36,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:36,083 INFO L93 Difference]: Finished difference Result 53635 states and 232663 transitions. [2022-02-10 22:49:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 22:49:36,083 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-10 22:49:36,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:36,451 INFO L225 Difference]: With dead ends: 53635 [2022-02-10 22:49:36,451 INFO L226 Difference]: Without dead ends: 52455 [2022-02-10 22:49:36,451 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:49:36,453 INFO L934 BasicCegarLoop]: 272 mSDtfsCounter, 526 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:36,453 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [526 Valid, 1260 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:49:36,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52455 states. [2022-02-10 22:49:37,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52455 to 35275. [2022-02-10 22:49:37,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35275 states, 35274 states have (on average 4.409706866247094) internal successors, (155548), 35274 states have internal predecessors, (155548), 0 states have call successors, (0), 0 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 22:49:37,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35275 states to 35275 states and 155548 transitions. [2022-02-10 22:49:37,997 INFO L78 Accepts]: Start accepts. Automaton has 35275 states and 155548 transitions. Word has length 182 [2022-02-10 22:49:37,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:37,997 INFO L470 AbstractCegarLoop]: Abstraction has 35275 states and 155548 transitions. [2022-02-10 22:49:37,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:37,997 INFO L276 IsEmpty]: Start isEmpty. Operand 35275 states and 155548 transitions. [2022-02-10 22:49:38,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:49:38,099 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:38,099 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:38,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-10 22:49:38,100 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:49:38,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:38,100 INFO L85 PathProgramCache]: Analyzing trace with hash 78103719, now seen corresponding path program 1 times [2022-02-10 22:49:38,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:38,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486761547] [2022-02-10 22:49:38,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:38,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:38,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:38,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:38,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486761547] [2022-02-10 22:49:38,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486761547] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:38,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336002038] [2022-02-10 22:49:38,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:38,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:38,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:38,276 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:49:38,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 22:49:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:38,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-10 22:49:38,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:49:38,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:38,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:49:39,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:49:39,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336002038] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:49:39,393 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:49:39,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 11] total 20 [2022-02-10 22:49:39,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033396960] [2022-02-10 22:49:39,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:49:39,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-10 22:49:39,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:39,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-10 22:49:39,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:49:39,395 INFO L87 Difference]: Start difference. First operand 35275 states and 155548 transitions. Second operand has 20 states, 20 states have (on average 21.8) internal successors, (436), 20 states have internal predecessors, (436), 0 states have call successors, (0), 0 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 22:49:42,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:42,705 INFO L93 Difference]: Finished difference Result 114507 states and 494631 transitions. [2022-02-10 22:49:42,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-10 22:49:42,706 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 21.8) internal successors, (436), 20 states have internal predecessors, (436), 0 states have call successors, (0), 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 182 [2022-02-10 22:49:42,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:43,471 INFO L225 Difference]: With dead ends: 114507 [2022-02-10 22:49:43,471 INFO L226 Difference]: Without dead ends: 109015 [2022-02-10 22:49:43,473 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3261 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1705, Invalid=7415, Unknown=0, NotChecked=0, Total=9120 [2022-02-10 22:49:43,474 INFO L934 BasicCegarLoop]: 338 mSDtfsCounter, 2690 mSDsluCounter, 4262 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 4062 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:43,474 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2690 Valid, 4062 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:49:43,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109015 states. [2022-02-10 22:49:45,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109015 to 43858. [2022-02-10 22:49:45,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43858 states, 43857 states have (on average 4.486763800533552) internal successors, (196776), 43857 states have internal predecessors, (196776), 0 states have call successors, (0), 0 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 22:49:45,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43858 states to 43858 states and 196776 transitions. [2022-02-10 22:49:45,867 INFO L78 Accepts]: Start accepts. Automaton has 43858 states and 196776 transitions. Word has length 182 [2022-02-10 22:49:45,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:45,867 INFO L470 AbstractCegarLoop]: Abstraction has 43858 states and 196776 transitions. [2022-02-10 22:49:45,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 21.8) internal successors, (436), 20 states have internal predecessors, (436), 0 states have call successors, (0), 0 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 22:49:45,867 INFO L276 IsEmpty]: Start isEmpty. Operand 43858 states and 196776 transitions. [2022-02-10 22:49:45,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:49:45,978 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:45,978 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:45,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 22:49:46,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-10 22:49:46,196 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:49:46,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:46,196 INFO L85 PathProgramCache]: Analyzing trace with hash -226515181, now seen corresponding path program 2 times [2022-02-10 22:49:46,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:46,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361112778] [2022-02-10 22:49:46,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:46,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:46,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:46,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361112778] [2022-02-10 22:49:46,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361112778] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:46,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:46,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:49:46,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230205993] [2022-02-10 22:49:46,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:46,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:49:46,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:46,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:49:46,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:49:46,361 INFO L87 Difference]: Start difference. First operand 43858 states and 196776 transitions. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:47,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:47,424 INFO L93 Difference]: Finished difference Result 65436 states and 291861 transitions. [2022-02-10 22:49:47,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 22:49:47,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-10 22:49:47,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:47,726 INFO L225 Difference]: With dead ends: 65436 [2022-02-10 22:49:47,726 INFO L226 Difference]: Without dead ends: 64308 [2022-02-10 22:49:47,726 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:49:47,726 INFO L934 BasicCegarLoop]: 233 mSDtfsCounter, 411 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:47,727 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [411 Valid, 780 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:47,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64308 states. [2022-02-10 22:49:49,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64308 to 51412. [2022-02-10 22:49:49,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51412 states, 51411 states have (on average 4.505397677539826) internal successors, (231627), 51411 states have internal predecessors, (231627), 0 states have call successors, (0), 0 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 22:49:49,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51412 states to 51412 states and 231627 transitions. [2022-02-10 22:49:49,796 INFO L78 Accepts]: Start accepts. Automaton has 51412 states and 231627 transitions. Word has length 182 [2022-02-10 22:49:49,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:49,797 INFO L470 AbstractCegarLoop]: Abstraction has 51412 states and 231627 transitions. [2022-02-10 22:49:49,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:49,797 INFO L276 IsEmpty]: Start isEmpty. Operand 51412 states and 231627 transitions. [2022-02-10 22:49:49,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:49:49,937 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:49,937 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:49,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-10 22:49:49,937 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:49:49,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:49,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1032144573, now seen corresponding path program 3 times [2022-02-10 22:49:49,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:49,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247844408] [2022-02-10 22:49:49,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:49,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:50,223 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:50,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:50,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247844408] [2022-02-10 22:49:50,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247844408] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:50,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:50,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-10 22:49:50,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903212802] [2022-02-10 22:49:50,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:50,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 22:49:50,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:50,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 22:49:50,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:49:50,225 INFO L87 Difference]: Start difference. First operand 51412 states and 231627 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:51,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:51,265 INFO L93 Difference]: Finished difference Result 64792 states and 288357 transitions. [2022-02-10 22:49:51,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:49:51,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-10 22:49:51,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:51,540 INFO L225 Difference]: With dead ends: 64792 [2022-02-10 22:49:51,540 INFO L226 Difference]: Without dead ends: 64504 [2022-02-10 22:49:51,541 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-02-10 22:49:51,541 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 562 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:51,541 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [562 Valid, 1263 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:49:51,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64504 states. [2022-02-10 22:49:52,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64504 to 52642. [2022-02-10 22:49:53,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52642 states, 52641 states have (on average 4.5006553826864995) internal successors, (236919), 52641 states have internal predecessors, (236919), 0 states have call successors, (0), 0 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 22:49:53,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52642 states to 52642 states and 236919 transitions. [2022-02-10 22:49:53,499 INFO L78 Accepts]: Start accepts. Automaton has 52642 states and 236919 transitions. Word has length 182 [2022-02-10 22:49:53,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:53,499 INFO L470 AbstractCegarLoop]: Abstraction has 52642 states and 236919 transitions. [2022-02-10 22:49:53,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:53,499 INFO L276 IsEmpty]: Start isEmpty. Operand 52642 states and 236919 transitions. [2022-02-10 22:49:53,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:49:53,650 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:53,650 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:53,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-10 22:49:53,651 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:49:53,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:53,651 INFO L85 PathProgramCache]: Analyzing trace with hash -970708935, now seen corresponding path program 4 times [2022-02-10 22:49:53,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:53,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694847250] [2022-02-10 22:49:53,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:53,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:54,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:49:54,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:54,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694847250] [2022-02-10 22:49:54,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694847250] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:54,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963742724] [2022-02-10 22:49:54,034 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:49:54,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:54,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:54,056 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:49:54,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 22:49:54,177 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:49:54,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:49:54,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-10 22:49:54,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:49:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:55,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:49:55,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963742724] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:55,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:49:55,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 17 [2022-02-10 22:49:55,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712580553] [2022-02-10 22:49:55,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:55,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:49:55,584 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:55,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:49:55,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-02-10 22:49:55,584 INFO L87 Difference]: Start difference. First operand 52642 states and 236919 transitions. Second operand has 10 states, 10 states have (on average 18.2) internal successors, (182), 10 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:56,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:56,831 INFO L93 Difference]: Finished difference Result 82619 states and 369646 transitions. [2022-02-10 22:49:56,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-10 22:49:56,832 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.2) internal successors, (182), 10 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-10 22:49:56,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:57,418 INFO L225 Difference]: With dead ends: 82619 [2022-02-10 22:49:57,419 INFO L226 Difference]: Without dead ends: 82619 [2022-02-10 22:49:57,419 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=214, Invalid=778, Unknown=0, NotChecked=0, Total=992 [2022-02-10 22:49:57,419 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 740 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:57,420 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [740 Valid, 1393 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:49:57,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82619 states. [2022-02-10 22:49:59,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82619 to 57392. [2022-02-10 22:49:59,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57392 states, 57391 states have (on average 4.507100416441602) internal successors, (258667), 57391 states have internal predecessors, (258667), 0 states have call successors, (0), 0 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 22:49:59,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57392 states to 57392 states and 258667 transitions. [2022-02-10 22:49:59,645 INFO L78 Accepts]: Start accepts. Automaton has 57392 states and 258667 transitions. Word has length 182 [2022-02-10 22:49:59,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:59,647 INFO L470 AbstractCegarLoop]: Abstraction has 57392 states and 258667 transitions. [2022-02-10 22:49:59,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.2) internal successors, (182), 10 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:49:59,647 INFO L276 IsEmpty]: Start isEmpty. Operand 57392 states and 258667 transitions. [2022-02-10 22:49:59,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:49:59,812 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:59,812 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:59,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-10 22:50:00,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-02-10 22:50:00,029 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:00,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:00,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1777401051, now seen corresponding path program 5 times [2022-02-10 22:50:00,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:00,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926531405] [2022-02-10 22:50:00,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:00,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:00,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:50:00,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:00,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926531405] [2022-02-10 22:50:00,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926531405] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:50:00,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337710844] [2022-02-10 22:50:00,325 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 22:50:00,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:50:00,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:50:00,326 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:50:00,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 22:50:00,453 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:50:00,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:50:00,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-10 22:50:00,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:50:01,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:50:01,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:50:02,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:50:02,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337710844] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-10 22:50:02,127 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-10 22:50:02,127 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 8] total 21 [2022-02-10 22:50:02,127 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264423014] [2022-02-10 22:50:02,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:02,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 22:50:02,127 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:02,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 22:50:02,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:50:02,128 INFO L87 Difference]: Start difference. First operand 57392 states and 258667 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:50:03,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:03,467 INFO L93 Difference]: Finished difference Result 132591 states and 590492 transitions. [2022-02-10 22:50:03,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 22:50:03,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-10 22:50:03,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:04,486 INFO L225 Difference]: With dead ends: 132591 [2022-02-10 22:50:04,486 INFO L226 Difference]: Without dead ends: 130483 [2022-02-10 22:50:04,487 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=783, Unknown=0, NotChecked=0, Total=930 [2022-02-10 22:50:04,489 INFO L934 BasicCegarLoop]: 259 mSDtfsCounter, 868 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:04,489 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [868 Valid, 916 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:50:04,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130483 states. [2022-02-10 22:50:07,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130483 to 59912. [2022-02-10 22:50:07,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59912 states, 59911 states have (on average 4.540768807063811) internal successors, (272042), 59911 states have internal predecessors, (272042), 0 states have call successors, (0), 0 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 22:50:07,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59912 states to 59912 states and 272042 transitions. [2022-02-10 22:50:07,924 INFO L78 Accepts]: Start accepts. Automaton has 59912 states and 272042 transitions. Word has length 182 [2022-02-10 22:50:07,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:07,924 INFO L470 AbstractCegarLoop]: Abstraction has 59912 states and 272042 transitions. [2022-02-10 22:50:07,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:50:07,924 INFO L276 IsEmpty]: Start isEmpty. Operand 59912 states and 272042 transitions. [2022-02-10 22:50:08,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:50:08,085 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:08,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:08,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-10 22:50:08,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:50:08,294 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:08,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:08,294 INFO L85 PathProgramCache]: Analyzing trace with hash -143593685, now seen corresponding path program 6 times [2022-02-10 22:50:08,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:08,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26679898] [2022-02-10 22:50:08,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:08,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:08,536 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:50:08,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:08,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26679898] [2022-02-10 22:50:08,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26679898] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:08,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:08,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-10 22:50:08,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615354815] [2022-02-10 22:50:08,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:08,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 22:50:08,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:08,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 22:50:08,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:50:08,538 INFO L87 Difference]: Start difference. First operand 59912 states and 272042 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:50:09,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:09,614 INFO L93 Difference]: Finished difference Result 83725 states and 378043 transitions. [2022-02-10 22:50:09,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 22:50:09,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-10 22:50:09,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:10,193 INFO L225 Difference]: With dead ends: 83725 [2022-02-10 22:50:10,193 INFO L226 Difference]: Without dead ends: 81232 [2022-02-10 22:50:10,194 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:50:10,194 INFO L934 BasicCegarLoop]: 248 mSDtfsCounter, 706 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:10,194 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [706 Valid, 1167 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:50:10,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81232 states. [2022-02-10 22:50:11,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81232 to 57848. [2022-02-10 22:50:11,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57848 states, 57847 states have (on average 4.553511850225595) internal successors, (263407), 57847 states have internal predecessors, (263407), 0 states have call successors, (0), 0 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 22:50:12,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57848 states to 57848 states and 263407 transitions. [2022-02-10 22:50:12,608 INFO L78 Accepts]: Start accepts. Automaton has 57848 states and 263407 transitions. Word has length 182 [2022-02-10 22:50:12,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:12,608 INFO L470 AbstractCegarLoop]: Abstraction has 57848 states and 263407 transitions. [2022-02-10 22:50:12,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:50:12,608 INFO L276 IsEmpty]: Start isEmpty. Operand 57848 states and 263407 transitions. [2022-02-10 22:50:12,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:50:12,856 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:12,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:12,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-10 22:50:12,857 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:12,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:12,857 INFO L85 PathProgramCache]: Analyzing trace with hash 958614483, now seen corresponding path program 7 times [2022-02-10 22:50:12,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:12,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699648303] [2022-02-10 22:50:12,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:12,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:13,155 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:50:13,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:13,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699648303] [2022-02-10 22:50:13,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699648303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:13,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:13,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 22:50:13,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983339002] [2022-02-10 22:50:13,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:13,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 22:50:13,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:13,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 22:50:13,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:50:13,158 INFO L87 Difference]: Start difference. First operand 57848 states and 263407 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:50:14,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:14,462 INFO L93 Difference]: Finished difference Result 74639 states and 337963 transitions. [2022-02-10 22:50:14,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-10 22:50:14,463 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-10 22:50:14,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:14,966 INFO L225 Difference]: With dead ends: 74639 [2022-02-10 22:50:14,966 INFO L226 Difference]: Without dead ends: 72057 [2022-02-10 22:50:14,966 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:50:14,967 INFO L934 BasicCegarLoop]: 246 mSDtfsCounter, 527 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:14,967 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [527 Valid, 1106 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:50:15,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72057 states. [2022-02-10 22:50:16,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72057 to 49161. [2022-02-10 22:50:16,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49161 states, 49160 states have (on average 4.581082180634662) internal successors, (225206), 49160 states have internal predecessors, (225206), 0 states have call successors, (0), 0 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 22:50:17,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49161 states to 49161 states and 225206 transitions. [2022-02-10 22:50:17,055 INFO L78 Accepts]: Start accepts. Automaton has 49161 states and 225206 transitions. Word has length 182 [2022-02-10 22:50:17,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:17,055 INFO L470 AbstractCegarLoop]: Abstraction has 49161 states and 225206 transitions. [2022-02-10 22:50:17,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 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 22:50:17,055 INFO L276 IsEmpty]: Start isEmpty. Operand 49161 states and 225206 transitions. [2022-02-10 22:50:17,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:50:17,188 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:17,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:17,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-10 22:50:17,189 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:17,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:17,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1075888186, now seen corresponding path program 1 times [2022-02-10 22:50:17,189 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:17,189 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20509584] [2022-02-10 22:50:17,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:17,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:17,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:17,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20509584] [2022-02-10 22:50:17,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20509584] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:50:17,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674244237] [2022-02-10 22:50:17,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:17,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:50:17,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:50:17,267 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:50:17,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-10 22:50:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:17,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-10 22:50:17,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:50:17,698 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:17,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:50:17,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674244237] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:17,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:50:17,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-02-10 22:50:17,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577881760] [2022-02-10 22:50:17,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:17,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:50:17,699 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:17,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:50:17,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:50:17,699 INFO L87 Difference]: Start difference. First operand 49161 states and 225206 transitions. Second operand has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:18,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:18,997 INFO L93 Difference]: Finished difference Result 110527 states and 510744 transitions. [2022-02-10 22:50:18,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:50:18,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:50:18,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:19,549 INFO L225 Difference]: With dead ends: 110527 [2022-02-10 22:50:19,550 INFO L226 Difference]: Without dead ends: 110527 [2022-02-10 22:50:19,550 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:50:19,552 INFO L934 BasicCegarLoop]: 265 mSDtfsCounter, 228 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:19,552 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 779 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:19,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110527 states. [2022-02-10 22:50:21,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110527 to 65138. [2022-02-10 22:50:21,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65138 states, 65137 states have (on average 4.611695349801188) internal successors, (300392), 65137 states have internal predecessors, (300392), 0 states have call successors, (0), 0 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 22:50:22,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65138 states to 65138 states and 300392 transitions. [2022-02-10 22:50:22,585 INFO L78 Accepts]: Start accepts. Automaton has 65138 states and 300392 transitions. Word has length 193 [2022-02-10 22:50:22,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:22,585 INFO L470 AbstractCegarLoop]: Abstraction has 65138 states and 300392 transitions. [2022-02-10 22:50:22,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:22,585 INFO L276 IsEmpty]: Start isEmpty. Operand 65138 states and 300392 transitions. [2022-02-10 22:50:22,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:50:22,763 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:22,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:22,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-10 22:50:22,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:50:22,980 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:22,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:22,980 INFO L85 PathProgramCache]: Analyzing trace with hash -316570878, now seen corresponding path program 1 times [2022-02-10 22:50:22,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:22,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93358589] [2022-02-10 22:50:22,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:22,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:23,096 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:23,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:23,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93358589] [2022-02-10 22:50:23,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93358589] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:23,096 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:23,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:23,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819631102] [2022-02-10 22:50:23,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:23,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:23,097 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:23,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:23,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:23,097 INFO L87 Difference]: Start difference. First operand 65138 states and 300392 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:24,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:24,691 INFO L93 Difference]: Finished difference Result 119125 states and 548658 transitions. [2022-02-10 22:50:24,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:50:24,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:50:24,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:25,435 INFO L225 Difference]: With dead ends: 119125 [2022-02-10 22:50:25,435 INFO L226 Difference]: Without dead ends: 119125 [2022-02-10 22:50:25,435 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:50:25,435 INFO L934 BasicCegarLoop]: 251 mSDtfsCounter, 181 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:25,436 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 667 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:25,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119125 states. [2022-02-10 22:50:27,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119125 to 66287. [2022-02-10 22:50:27,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66287 states, 66286 states have (on average 4.601303442657575) internal successors, (305002), 66286 states have internal predecessors, (305002), 0 states have call successors, (0), 0 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 22:50:28,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66287 states to 66287 states and 305002 transitions. [2022-02-10 22:50:28,639 INFO L78 Accepts]: Start accepts. Automaton has 66287 states and 305002 transitions. Word has length 193 [2022-02-10 22:50:28,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:28,641 INFO L470 AbstractCegarLoop]: Abstraction has 66287 states and 305002 transitions. [2022-02-10 22:50:28,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:28,641 INFO L276 IsEmpty]: Start isEmpty. Operand 66287 states and 305002 transitions. [2022-02-10 22:50:28,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:50:28,867 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:28,868 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:28,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-10 22:50:28,868 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:28,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:28,868 INFO L85 PathProgramCache]: Analyzing trace with hash -42298392, now seen corresponding path program 2 times [2022-02-10 22:50:28,868 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:28,868 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40476813] [2022-02-10 22:50:28,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:28,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:28,923 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:28,923 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:28,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40476813] [2022-02-10 22:50:28,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40476813] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:28,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:28,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:28,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179752301] [2022-02-10 22:50:28,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:28,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:28,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:28,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:28,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:28,924 INFO L87 Difference]: Start difference. First operand 66287 states and 305002 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:30,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:30,271 INFO L93 Difference]: Finished difference Result 107019 states and 496800 transitions. [2022-02-10 22:50:30,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:50:30,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:50:30,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:30,817 INFO L225 Difference]: With dead ends: 107019 [2022-02-10 22:50:30,817 INFO L226 Difference]: Without dead ends: 107019 [2022-02-10 22:50:30,818 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:50:30,818 INFO L934 BasicCegarLoop]: 237 mSDtfsCounter, 193 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:30,818 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 639 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:30,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107019 states. [2022-02-10 22:50:32,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107019 to 51914. [2022-02-10 22:50:33,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51914 states, 51913 states have (on average 4.594976210197831) internal successors, (238539), 51913 states have internal predecessors, (238539), 0 states have call successors, (0), 0 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 22:50:33,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51914 states to 51914 states and 238539 transitions. [2022-02-10 22:50:33,290 INFO L78 Accepts]: Start accepts. Automaton has 51914 states and 238539 transitions. Word has length 193 [2022-02-10 22:50:33,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:33,290 INFO L470 AbstractCegarLoop]: Abstraction has 51914 states and 238539 transitions. [2022-02-10 22:50:33,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:33,290 INFO L276 IsEmpty]: Start isEmpty. Operand 51914 states and 238539 transitions. [2022-02-10 22:50:33,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:50:33,747 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:33,747 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:33,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-10 22:50:33,763 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:33,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:33,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1900493798, now seen corresponding path program 3 times [2022-02-10 22:50:33,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:33,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414570470] [2022-02-10 22:50:33,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:33,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:33,872 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:33,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:33,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414570470] [2022-02-10 22:50:33,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414570470] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:33,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:33,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:33,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210407714] [2022-02-10 22:50:33,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:33,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:33,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:33,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:33,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:33,874 INFO L87 Difference]: Start difference. First operand 51914 states and 238539 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:34,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:34,692 INFO L93 Difference]: Finished difference Result 71139 states and 329111 transitions. [2022-02-10 22:50:34,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:50:34,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:50:34,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:35,148 INFO L225 Difference]: With dead ends: 71139 [2022-02-10 22:50:35,148 INFO L226 Difference]: Without dead ends: 71139 [2022-02-10 22:50:35,148 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:50:35,149 INFO L934 BasicCegarLoop]: 252 mSDtfsCounter, 151 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:35,149 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 872 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:35,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71139 states. [2022-02-10 22:50:36,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71139 to 47740. [2022-02-10 22:50:36,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47740 states, 47739 states have (on average 4.590628207545194) internal successors, (219152), 47739 states have internal predecessors, (219152), 0 states have call successors, (0), 0 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 22:50:36,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47740 states to 47740 states and 219152 transitions. [2022-02-10 22:50:36,959 INFO L78 Accepts]: Start accepts. Automaton has 47740 states and 219152 transitions. Word has length 193 [2022-02-10 22:50:36,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:36,960 INFO L470 AbstractCegarLoop]: Abstraction has 47740 states and 219152 transitions. [2022-02-10 22:50:36,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:36,960 INFO L276 IsEmpty]: Start isEmpty. Operand 47740 states and 219152 transitions. [2022-02-10 22:50:37,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:50:37,368 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:37,368 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:37,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-10 22:50:37,383 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:37,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:37,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1171032726, now seen corresponding path program 4 times [2022-02-10 22:50:37,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:37,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795607925] [2022-02-10 22:50:37,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:37,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:37,479 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:37,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:37,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795607925] [2022-02-10 22:50:37,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795607925] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:37,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:37,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:37,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777668458] [2022-02-10 22:50:37,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:37,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:37,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:37,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:37,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:37,480 INFO L87 Difference]: Start difference. First operand 47740 states and 219152 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:38,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:38,718 INFO L93 Difference]: Finished difference Result 89574 states and 414198 transitions. [2022-02-10 22:50:38,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:50:38,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:50:38,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:39,182 INFO L225 Difference]: With dead ends: 89574 [2022-02-10 22:50:39,183 INFO L226 Difference]: Without dead ends: 89574 [2022-02-10 22:50:39,183 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 22:50:39,184 INFO L934 BasicCegarLoop]: 253 mSDtfsCounter, 171 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:39,184 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 848 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:50:39,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89574 states. [2022-02-10 22:50:40,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89574 to 48721. [2022-02-10 22:50:41,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48721 states, 48720 states have (on average 4.620094417077175) internal successors, (225091), 48720 states have internal predecessors, (225091), 0 states have call successors, (0), 0 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 22:50:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48721 states to 48721 states and 225091 transitions. [2022-02-10 22:50:41,515 INFO L78 Accepts]: Start accepts. Automaton has 48721 states and 225091 transitions. Word has length 193 [2022-02-10 22:50:41,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:41,515 INFO L470 AbstractCegarLoop]: Abstraction has 48721 states and 225091 transitions. [2022-02-10 22:50:41,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:41,515 INFO L276 IsEmpty]: Start isEmpty. Operand 48721 states and 225091 transitions. [2022-02-10 22:50:41,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:50:41,635 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:41,635 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:41,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-10 22:50:41,635 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:41,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:41,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1012284598, now seen corresponding path program 5 times [2022-02-10 22:50:41,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:41,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086082031] [2022-02-10 22:50:41,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:41,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:41,797 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:41,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:41,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086082031] [2022-02-10 22:50:41,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086082031] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:41,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:41,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:41,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608746620] [2022-02-10 22:50:41,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:41,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:41,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:41,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:41,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:41,798 INFO L87 Difference]: Start difference. First operand 48721 states and 225091 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:42,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:42,629 INFO L93 Difference]: Finished difference Result 65704 states and 300181 transitions. [2022-02-10 22:50:42,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:50:42,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:50:42,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:42,907 INFO L225 Difference]: With dead ends: 65704 [2022-02-10 22:50:42,907 INFO L226 Difference]: Without dead ends: 64495 [2022-02-10 22:50:42,907 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 22:50:42,907 INFO L934 BasicCegarLoop]: 263 mSDtfsCounter, 141 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:42,912 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 826 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:50:43,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64495 states. [2022-02-10 22:50:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64495 to 48992. [2022-02-10 22:50:44,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48992 states, 48991 states have (on average 4.604845788001878) internal successors, (225596), 48991 states have internal predecessors, (225596), 0 states have call successors, (0), 0 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 22:50:44,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48992 states to 48992 states and 225596 transitions. [2022-02-10 22:50:44,844 INFO L78 Accepts]: Start accepts. Automaton has 48992 states and 225596 transitions. Word has length 193 [2022-02-10 22:50:44,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:44,851 INFO L470 AbstractCegarLoop]: Abstraction has 48992 states and 225596 transitions. [2022-02-10 22:50:44,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:44,851 INFO L276 IsEmpty]: Start isEmpty. Operand 48992 states and 225596 transitions. [2022-02-10 22:50:44,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:50:44,977 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:44,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:44,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-10 22:50:44,982 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:44,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:44,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1736641318, now seen corresponding path program 6 times [2022-02-10 22:50:44,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:44,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188188444] [2022-02-10 22:50:44,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:44,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:45,090 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:45,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:45,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188188444] [2022-02-10 22:50:45,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188188444] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:45,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:45,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:45,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269777675] [2022-02-10 22:50:45,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:45,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:45,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:45,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:45,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:45,092 INFO L87 Difference]: Start difference. First operand 48992 states and 225596 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:46,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:46,019 INFO L93 Difference]: Finished difference Result 85397 states and 389483 transitions. [2022-02-10 22:50:46,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:50:46,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:50:46,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:46,676 INFO L225 Difference]: With dead ends: 85397 [2022-02-10 22:50:46,676 INFO L226 Difference]: Without dead ends: 85397 [2022-02-10 22:50:46,676 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:50:46,677 INFO L934 BasicCegarLoop]: 243 mSDtfsCounter, 184 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:46,677 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 505 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:46,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85397 states. [2022-02-10 22:50:48,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85397 to 44940. [2022-02-10 22:50:48,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44940 states, 44939 states have (on average 4.514630944168762) internal successors, (202883), 44939 states have internal predecessors, (202883), 0 states have call successors, (0), 0 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 22:50:48,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44940 states to 44940 states and 202883 transitions. [2022-02-10 22:50:48,551 INFO L78 Accepts]: Start accepts. Automaton has 44940 states and 202883 transitions. Word has length 193 [2022-02-10 22:50:48,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:48,552 INFO L470 AbstractCegarLoop]: Abstraction has 44940 states and 202883 transitions. [2022-02-10 22:50:48,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:48,552 INFO L276 IsEmpty]: Start isEmpty. Operand 44940 states and 202883 transitions. [2022-02-10 22:50:48,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:50:48,669 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:48,670 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:48,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-10 22:50:48,670 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:48,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:48,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1577893190, now seen corresponding path program 7 times [2022-02-10 22:50:48,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:48,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141158459] [2022-02-10 22:50:48,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:48,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:48,768 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:48,768 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:48,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141158459] [2022-02-10 22:50:48,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141158459] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:48,768 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:48,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:48,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370850024] [2022-02-10 22:50:48,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:48,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:48,769 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:48,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:48,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:48,769 INFO L87 Difference]: Start difference. First operand 44940 states and 202883 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:49,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:49,478 INFO L93 Difference]: Finished difference Result 63567 states and 286124 transitions. [2022-02-10 22:50:49,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:50:49,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:50:49,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:49,971 INFO L225 Difference]: With dead ends: 63567 [2022-02-10 22:50:49,971 INFO L226 Difference]: Without dead ends: 62358 [2022-02-10 22:50:49,971 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 22:50:49,972 INFO L934 BasicCegarLoop]: 236 mSDtfsCounter, 119 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:49,972 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 623 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:50:50,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62358 states. [2022-02-10 22:50:51,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62358 to 43959. [2022-02-10 22:50:51,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43959 states, 43958 states have (on average 4.480276627690068) internal successors, (196944), 43958 states have internal predecessors, (196944), 0 states have call successors, (0), 0 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 22:50:51,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43959 states to 43959 states and 196944 transitions. [2022-02-10 22:50:51,689 INFO L78 Accepts]: Start accepts. Automaton has 43959 states and 196944 transitions. Word has length 193 [2022-02-10 22:50:51,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:51,689 INFO L470 AbstractCegarLoop]: Abstraction has 43959 states and 196944 transitions. [2022-02-10 22:50:51,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:51,689 INFO L276 IsEmpty]: Start isEmpty. Operand 43959 states and 196944 transitions. [2022-02-10 22:50:51,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:50:51,806 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:51,806 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:51,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-10 22:50:51,806 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:51,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:51,807 INFO L85 PathProgramCache]: Analyzing trace with hash 565815936, now seen corresponding path program 8 times [2022-02-10 22:50:51,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:51,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181606355] [2022-02-10 22:50:51,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:51,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:51,951 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:51,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:51,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181606355] [2022-02-10 22:50:51,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181606355] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:50:51,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940636638] [2022-02-10 22:50:51,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:50:51,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:50:51,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:50:51,953 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:50:51,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-10 22:50:52,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:50:52,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:50:52,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-10 22:50:52,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:50:52,522 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:52,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:50:52,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940636638] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:52,523 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:50:52,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-02-10 22:50:52,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091323989] [2022-02-10 22:50:52,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:52,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:50:52,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:52,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:50:52,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:50:52,524 INFO L87 Difference]: Start difference. First operand 43959 states and 196944 transitions. Second operand has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:53,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:53,509 INFO L93 Difference]: Finished difference Result 82418 states and 369049 transitions. [2022-02-10 22:50:53,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:50:53,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:50:53,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:54,123 INFO L225 Difference]: With dead ends: 82418 [2022-02-10 22:50:54,123 INFO L226 Difference]: Without dead ends: 82148 [2022-02-10 22:50:54,123 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:50:54,123 INFO L934 BasicCegarLoop]: 276 mSDtfsCounter, 164 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:54,124 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 906 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:54,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82148 states. [2022-02-10 22:50:55,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82148 to 54871. [2022-02-10 22:50:55,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54871 states, 54870 states have (on average 4.5176052487698195) internal successors, (247881), 54870 states have internal predecessors, (247881), 0 states have call successors, (0), 0 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 22:50:56,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54871 states to 54871 states and 247881 transitions. [2022-02-10 22:50:56,440 INFO L78 Accepts]: Start accepts. Automaton has 54871 states and 247881 transitions. Word has length 193 [2022-02-10 22:50:56,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:56,440 INFO L470 AbstractCegarLoop]: Abstraction has 54871 states and 247881 transitions. [2022-02-10 22:50:56,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:50:56,440 INFO L276 IsEmpty]: Start isEmpty. Operand 54871 states and 247881 transitions. [2022-02-10 22:50:56,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:50:56,595 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:56,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:56,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-10 22:50:56,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-02-10 22:50:56,812 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:56,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:56,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1901545794, now seen corresponding path program 9 times [2022-02-10 22:50:56,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:56,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37355002] [2022-02-10 22:50:56,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:56,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:56,944 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:56,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:56,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37355002] [2022-02-10 22:50:56,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37355002] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:50:56,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323180903] [2022-02-10 22:50:56,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:50:56,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:50:56,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:50:56,946 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:50:56,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-10 22:50:57,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-10 22:50:57,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:50:57,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-10 22:50:57,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:50:57,723 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:57,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:50:58,628 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:50:58,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323180903] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:50:58,628 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:50:58,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 12] total 23 [2022-02-10 22:50:58,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551609003] [2022-02-10 22:50:58,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:50:58,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-10 22:50:58,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:58,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-10 22:50:58,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:50:58,629 INFO L87 Difference]: Start difference. First operand 54871 states and 247881 transitions. Second operand has 23 states, 23 states have (on average 21.695652173913043) internal successors, (499), 23 states have internal predecessors, (499), 0 states have call successors, (0), 0 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 22:51:02,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:02,806 INFO L93 Difference]: Finished difference Result 145624 states and 642093 transitions. [2022-02-10 22:51:02,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-10 22:51:02,807 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 21.695652173913043) internal successors, (499), 23 states have internal predecessors, (499), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:02,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:04,135 INFO L225 Difference]: With dead ends: 145624 [2022-02-10 22:51:04,135 INFO L226 Difference]: Without dead ends: 145624 [2022-02-10 22:51:04,137 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1791 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1323, Invalid=4839, Unknown=0, NotChecked=0, Total=6162 [2022-02-10 22:51:04,137 INFO L934 BasicCegarLoop]: 416 mSDtfsCounter, 1866 mSDsluCounter, 5776 mSDsCounter, 0 mSdLazyCounter, 2598 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 5282 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 2598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:04,137 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1866 Valid, 5282 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 2598 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-10 22:51:04,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145624 states. [2022-02-10 22:51:06,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145624 to 50796. [2022-02-10 22:51:06,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50796 states, 50795 states have (on average 4.526764445319421) internal successors, (229937), 50795 states have internal predecessors, (229937), 0 states have call successors, (0), 0 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 22:51:06,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50796 states to 50796 states and 229937 transitions. [2022-02-10 22:51:06,925 INFO L78 Accepts]: Start accepts. Automaton has 50796 states and 229937 transitions. Word has length 193 [2022-02-10 22:51:06,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:06,925 INFO L470 AbstractCegarLoop]: Abstraction has 50796 states and 229937 transitions. [2022-02-10 22:51:06,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 21.695652173913043) internal successors, (499), 23 states have internal predecessors, (499), 0 states have call successors, (0), 0 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 22:51:06,926 INFO L276 IsEmpty]: Start isEmpty. Operand 50796 states and 229937 transitions. [2022-02-10 22:51:07,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:51:07,481 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:07,481 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:07,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-10 22:51:07,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-02-10 22:51:07,714 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:07,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:07,714 INFO L85 PathProgramCache]: Analyzing trace with hash -856930020, now seen corresponding path program 2 times [2022-02-10 22:51:07,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:07,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752987842] [2022-02-10 22:51:07,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:07,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:51:07,820 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:07,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:51:07,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752987842] [2022-02-10 22:51:07,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752987842] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:51:07,820 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:51:07,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:51:07,820 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242057143] [2022-02-10 22:51:07,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:51:07,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:51:07,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:51:07,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:51:07,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:51:07,821 INFO L87 Difference]: Start difference. First operand 50796 states and 229937 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:08,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:08,868 INFO L93 Difference]: Finished difference Result 104948 states and 469623 transitions. [2022-02-10 22:51:08,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:51:08,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:08,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:09,369 INFO L225 Difference]: With dead ends: 104948 [2022-02-10 22:51:09,370 INFO L226 Difference]: Without dead ends: 104948 [2022-02-10 22:51:09,370 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:51:09,371 INFO L934 BasicCegarLoop]: 254 mSDtfsCounter, 194 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:09,371 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 704 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:51:09,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104948 states. [2022-02-10 22:51:11,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104948 to 50083. [2022-02-10 22:51:11,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50083 states, 50082 states have (on average 4.545744978235693) internal successors, (227660), 50082 states have internal predecessors, (227660), 0 states have call successors, (0), 0 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 22:51:11,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50083 states to 50083 states and 227660 transitions. [2022-02-10 22:51:11,671 INFO L78 Accepts]: Start accepts. Automaton has 50083 states and 227660 transitions. Word has length 193 [2022-02-10 22:51:11,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:11,672 INFO L470 AbstractCegarLoop]: Abstraction has 50083 states and 227660 transitions. [2022-02-10 22:51:11,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:11,672 INFO L276 IsEmpty]: Start isEmpty. Operand 50083 states and 227660 transitions. [2022-02-10 22:51:11,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:51:11,809 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:11,809 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:11,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-10 22:51:11,810 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:11,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:11,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1019929886, now seen corresponding path program 3 times [2022-02-10 22:51:11,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:11,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682373674] [2022-02-10 22:51:11,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:11,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:51:12,343 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:12,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:51:12,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682373674] [2022-02-10 22:51:12,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682373674] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:51:12,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994195502] [2022-02-10 22:51:12,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:51:12,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:51:12,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:51:12,345 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:51:12,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-10 22:51:12,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-10 22:51:12,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:51:12,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 22:51:12,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:51:13,037 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:13,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:51:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:13,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994195502] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-10 22:51:13,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-10 22:51:13,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 17 [2022-02-10 22:51:13,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159734547] [2022-02-10 22:51:13,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:51:13,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:51:13,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:51:13,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:51:13,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-02-10 22:51:13,272 INFO L87 Difference]: Start difference. First operand 50083 states and 227660 transitions. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:14,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:14,053 INFO L93 Difference]: Finished difference Result 77723 states and 349661 transitions. [2022-02-10 22:51:14,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-10 22:51:14,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:14,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:14,383 INFO L225 Difference]: With dead ends: 77723 [2022-02-10 22:51:14,383 INFO L226 Difference]: Without dead ends: 77723 [2022-02-10 22:51:14,384 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:51:14,384 INFO L934 BasicCegarLoop]: 279 mSDtfsCounter, 351 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:14,385 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 1059 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:51:14,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77723 states. [2022-02-10 22:51:15,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77723 to 48617. [2022-02-10 22:51:15,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48617 states, 48616 states have (on average 4.544244693105151) internal successors, (220923), 48616 states have internal predecessors, (220923), 0 states have call successors, (0), 0 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 22:51:16,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48617 states to 48617 states and 220923 transitions. [2022-02-10 22:51:16,335 INFO L78 Accepts]: Start accepts. Automaton has 48617 states and 220923 transitions. Word has length 193 [2022-02-10 22:51:16,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:16,335 INFO L470 AbstractCegarLoop]: Abstraction has 48617 states and 220923 transitions. [2022-02-10 22:51:16,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:16,335 INFO L276 IsEmpty]: Start isEmpty. Operand 48617 states and 220923 transitions. [2022-02-10 22:51:16,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:51:16,458 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:16,458 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:16,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-02-10 22:51:16,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-02-10 22:51:16,676 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:16,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:16,676 INFO L85 PathProgramCache]: Analyzing trace with hash -2042137804, now seen corresponding path program 4 times [2022-02-10 22:51:16,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:16,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915008978] [2022-02-10 22:51:16,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:16,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:51:16,780 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:16,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:51:16,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915008978] [2022-02-10 22:51:16,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915008978] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:51:16,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:51:16,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:51:16,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610793631] [2022-02-10 22:51:16,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:51:16,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:51:16,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:51:16,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:51:16,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:51:16,781 INFO L87 Difference]: Start difference. First operand 48617 states and 220923 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:17,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:17,586 INFO L93 Difference]: Finished difference Result 62629 states and 283392 transitions. [2022-02-10 22:51:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:51:17,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:17,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:17,844 INFO L225 Difference]: With dead ends: 62629 [2022-02-10 22:51:17,845 INFO L226 Difference]: Without dead ends: 61657 [2022-02-10 22:51:17,845 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 22:51:17,845 INFO L934 BasicCegarLoop]: 247 mSDtfsCounter, 110 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:17,845 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 624 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:51:18,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61657 states. [2022-02-10 22:51:19,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61657 to 53009. [2022-02-10 22:51:19,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53009 states, 53008 states have (on average 4.527920313914881) internal successors, (240016), 53008 states have internal predecessors, (240016), 0 states have call successors, (0), 0 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 22:51:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53009 states to 53009 states and 240016 transitions. [2022-02-10 22:51:19,973 INFO L78 Accepts]: Start accepts. Automaton has 53009 states and 240016 transitions. Word has length 193 [2022-02-10 22:51:19,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:19,973 INFO L470 AbstractCegarLoop]: Abstraction has 53009 states and 240016 transitions. [2022-02-10 22:51:19,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:19,973 INFO L276 IsEmpty]: Start isEmpty. Operand 53009 states and 240016 transitions. [2022-02-10 22:51:20,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:51:20,120 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:20,120 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:20,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-10 22:51:20,120 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:20,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:20,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1372653890, now seen corresponding path program 5 times [2022-02-10 22:51:20,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:20,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532910621] [2022-02-10 22:51:20,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:20,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:51:20,226 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:51:20,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:51:20,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532910621] [2022-02-10 22:51:20,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532910621] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:51:20,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:51:20,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:51:20,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583399855] [2022-02-10 22:51:20,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:51:20,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:51:20,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:51:20,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:51:20,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:51:20,227 INFO L87 Difference]: Start difference. First operand 53009 states and 240016 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:21,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:21,320 INFO L93 Difference]: Finished difference Result 98228 states and 437783 transitions. [2022-02-10 22:51:21,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:51:21,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:21,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:22,072 INFO L225 Difference]: With dead ends: 98228 [2022-02-10 22:51:22,072 INFO L226 Difference]: Without dead ends: 98228 [2022-02-10 22:51:22,072 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:51:22,073 INFO L934 BasicCegarLoop]: 252 mSDtfsCounter, 202 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:22,073 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 522 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:51:22,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98228 states. [2022-02-10 22:51:23,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98228 to 50484. [2022-02-10 22:51:23,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50484 states, 50483 states have (on average 4.475110433215142) internal successors, (225917), 50483 states have internal predecessors, (225917), 0 states have call successors, (0), 0 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 22:51:24,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50484 states to 50484 states and 225917 transitions. [2022-02-10 22:51:24,451 INFO L78 Accepts]: Start accepts. Automaton has 50484 states and 225917 transitions. Word has length 193 [2022-02-10 22:51:24,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:24,451 INFO L470 AbstractCegarLoop]: Abstraction has 50484 states and 225917 transitions. [2022-02-10 22:51:24,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:24,451 INFO L276 IsEmpty]: Start isEmpty. Operand 50484 states and 225917 transitions. [2022-02-10 22:51:24,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:51:24,594 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:24,594 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:24,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-10 22:51:24,594 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:24,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:24,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1535653756, now seen corresponding path program 6 times [2022-02-10 22:51:24,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:24,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536700206] [2022-02-10 22:51:24,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:24,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:51:24,787 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:24,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:51:24,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536700206] [2022-02-10 22:51:24,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536700206] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:51:24,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312139558] [2022-02-10 22:51:24,788 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 22:51:24,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:51:24,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:51:24,789 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:51:24,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-10 22:51:24,951 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-02-10 22:51:24,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:51:24,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 22:51:24,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:51:25,530 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:25,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:51:25,839 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:25,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312139558] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-10 22:51:25,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-10 22:51:25,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 17 [2022-02-10 22:51:25,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922742244] [2022-02-10 22:51:25,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:51:25,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:51:25,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:51:25,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:51:25,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-02-10 22:51:25,841 INFO L87 Difference]: Start difference. First operand 50484 states and 225917 transitions. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:27,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:27,131 INFO L93 Difference]: Finished difference Result 97356 states and 425128 transitions. [2022-02-10 22:51:27,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 22:51:27,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:27,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:27,794 INFO L225 Difference]: With dead ends: 97356 [2022-02-10 22:51:27,795 INFO L226 Difference]: Without dead ends: 97356 [2022-02-10 22:51:27,795 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:51:27,795 INFO L934 BasicCegarLoop]: 269 mSDtfsCounter, 488 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:27,795 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 1189 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:51:27,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97356 states. [2022-02-10 22:51:30,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97356 to 50520. [2022-02-10 22:51:30,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50520 states, 50519 states have (on average 4.475682416516558) internal successors, (226107), 50519 states have internal predecessors, (226107), 0 states have call successors, (0), 0 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 22:51:30,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50520 states to 50520 states and 226107 transitions. [2022-02-10 22:51:30,294 INFO L78 Accepts]: Start accepts. Automaton has 50520 states and 226107 transitions. Word has length 193 [2022-02-10 22:51:30,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:30,294 INFO L470 AbstractCegarLoop]: Abstraction has 50520 states and 226107 transitions. [2022-02-10 22:51:30,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:30,294 INFO L276 IsEmpty]: Start isEmpty. Operand 50520 states and 226107 transitions. [2022-02-10 22:51:30,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:51:30,425 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:30,426 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:30,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-10 22:51:30,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-02-10 22:51:30,640 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:30,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:30,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1050901394, now seen corresponding path program 7 times [2022-02-10 22:51:30,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:30,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755450978] [2022-02-10 22:51:30,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:30,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:51:30,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:30,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:51:30,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755450978] [2022-02-10 22:51:30,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755450978] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:51:30,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:51:30,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-10 22:51:30,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952543922] [2022-02-10 22:51:30,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:51:30,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 22:51:30,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:51:30,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 22:51:30,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:51:30,849 INFO L87 Difference]: Start difference. First operand 50520 states and 226107 transitions. Second operand has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:32,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:32,425 INFO L93 Difference]: Finished difference Result 85899 states and 381665 transitions. [2022-02-10 22:51:32,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-10 22:51:32,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:32,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:33,018 INFO L225 Difference]: With dead ends: 85899 [2022-02-10 22:51:33,019 INFO L226 Difference]: Without dead ends: 85899 [2022-02-10 22:51:33,019 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:51:33,019 INFO L934 BasicCegarLoop]: 221 mSDtfsCounter, 872 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:33,019 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [872 Valid, 901 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:51:33,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85899 states. [2022-02-10 22:51:34,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85899 to 50552. [2022-02-10 22:51:34,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50552 states, 50551 states have (on average 4.476172578188364) internal successors, (226275), 50551 states have internal predecessors, (226275), 0 states have call successors, (0), 0 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 22:51:35,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50552 states to 50552 states and 226275 transitions. [2022-02-10 22:51:35,248 INFO L78 Accepts]: Start accepts. Automaton has 50552 states and 226275 transitions. Word has length 193 [2022-02-10 22:51:35,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:35,248 INFO L470 AbstractCegarLoop]: Abstraction has 50552 states and 226275 transitions. [2022-02-10 22:51:35,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:35,249 INFO L276 IsEmpty]: Start isEmpty. Operand 50552 states and 226275 transitions. [2022-02-10 22:51:35,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:51:35,389 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:35,390 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:35,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-10 22:51:35,390 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:35,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:35,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1864108478, now seen corresponding path program 8 times [2022-02-10 22:51:35,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:35,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335130755] [2022-02-10 22:51:35,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:35,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:51:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:35,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:51:35,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335130755] [2022-02-10 22:51:35,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335130755] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:51:35,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:51:35,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:51:35,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007748832] [2022-02-10 22:51:35,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:51:35,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:51:35,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:51:35,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:51:35,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:51:35,503 INFO L87 Difference]: Start difference. First operand 50552 states and 226275 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:36,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:36,357 INFO L93 Difference]: Finished difference Result 78651 states and 349294 transitions. [2022-02-10 22:51:36,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:51:36,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:36,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:37,080 INFO L225 Difference]: With dead ends: 78651 [2022-02-10 22:51:37,080 INFO L226 Difference]: Without dead ends: 77679 [2022-02-10 22:51:37,080 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 22:51:37,081 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 150 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:37,081 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 453 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:51:37,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77679 states. [2022-02-10 22:51:38,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77679 to 49722. [2022-02-10 22:51:38,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49722 states, 49721 states have (on average 4.449226684901752) internal successors, (221220), 49721 states have internal predecessors, (221220), 0 states have call successors, (0), 0 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 22:51:39,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49722 states to 49722 states and 221220 transitions. [2022-02-10 22:51:39,118 INFO L78 Accepts]: Start accepts. Automaton has 49722 states and 221220 transitions. Word has length 193 [2022-02-10 22:51:39,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:39,118 INFO L470 AbstractCegarLoop]: Abstraction has 49722 states and 221220 transitions. [2022-02-10 22:51:39,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:39,118 INFO L276 IsEmpty]: Start isEmpty. Operand 49722 states and 221220 transitions. [2022-02-10 22:51:39,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:51:39,256 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:39,256 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:39,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-10 22:51:39,256 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:39,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:39,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1275988832, now seen corresponding path program 9 times [2022-02-10 22:51:39,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:39,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227298516] [2022-02-10 22:51:39,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:39,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:51:39,770 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:39,770 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:51:39,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227298516] [2022-02-10 22:51:39,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227298516] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:51:39,770 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:51:39,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 22:51:39,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201802596] [2022-02-10 22:51:39,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:51:39,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 22:51:39,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:51:39,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 22:51:39,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:51:39,771 INFO L87 Difference]: Start difference. First operand 49722 states and 221220 transitions. Second operand has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:40,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:40,344 INFO L93 Difference]: Finished difference Result 55334 states and 245140 transitions. [2022-02-10 22:51:40,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:51:40,344 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:40,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:40,890 INFO L225 Difference]: With dead ends: 55334 [2022-02-10 22:51:40,890 INFO L226 Difference]: Without dead ends: 55334 [2022-02-10 22:51:40,890 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:51:40,890 INFO L934 BasicCegarLoop]: 216 mSDtfsCounter, 284 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:40,891 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 986 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:51:40,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55334 states. [2022-02-10 22:51:42,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55334 to 49938. [2022-02-10 22:51:42,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49938 states, 49937 states have (on average 4.442717824458818) internal successors, (221856), 49937 states have internal predecessors, (221856), 0 states have call successors, (0), 0 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 22:51:42,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49938 states to 49938 states and 221856 transitions. [2022-02-10 22:51:42,599 INFO L78 Accepts]: Start accepts. Automaton has 49938 states and 221856 transitions. Word has length 193 [2022-02-10 22:51:42,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:42,599 INFO L470 AbstractCegarLoop]: Abstraction has 49938 states and 221856 transitions. [2022-02-10 22:51:42,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:42,599 INFO L276 IsEmpty]: Start isEmpty. Operand 49938 states and 221856 transitions. [2022-02-10 22:51:42,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:51:42,728 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:42,728 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:42,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-10 22:51:42,728 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:42,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:42,728 INFO L85 PathProgramCache]: Analyzing trace with hash -554450516, now seen corresponding path program 10 times [2022-02-10 22:51:42,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:42,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462155631] [2022-02-10 22:51:42,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:42,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:51:43,008 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:43,008 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:51:43,008 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462155631] [2022-02-10 22:51:43,008 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462155631] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:51:43,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:51:43,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-10 22:51:43,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967500966] [2022-02-10 22:51:43,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:51:43,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 22:51:43,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:51:43,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 22:51:43,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:51:43,011 INFO L87 Difference]: Start difference. First operand 49938 states and 221856 transitions. Second operand has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:44,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:44,159 INFO L93 Difference]: Finished difference Result 60180 states and 264741 transitions. [2022-02-10 22:51:44,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 22:51:44,159 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:44,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:44,600 INFO L225 Difference]: With dead ends: 60180 [2022-02-10 22:51:44,600 INFO L226 Difference]: Without dead ends: 60180 [2022-02-10 22:51:44,601 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-02-10 22:51:44,602 INFO L934 BasicCegarLoop]: 212 mSDtfsCounter, 401 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:44,602 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 1160 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:51:44,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60180 states. [2022-02-10 22:51:45,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60180 to 50373. [2022-02-10 22:51:45,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50373 states, 50372 states have (on average 4.432502183752878) internal successors, (223274), 50372 states have internal predecessors, (223274), 0 states have call successors, (0), 0 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 22:51:46,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50373 states to 50373 states and 223274 transitions. [2022-02-10 22:51:46,303 INFO L78 Accepts]: Start accepts. Automaton has 50373 states and 223274 transitions. Word has length 193 [2022-02-10 22:51:46,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:46,303 INFO L470 AbstractCegarLoop]: Abstraction has 50373 states and 223274 transitions. [2022-02-10 22:51:46,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:46,303 INFO L276 IsEmpty]: Start isEmpty. Operand 50373 states and 223274 transitions. [2022-02-10 22:51:46,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:51:46,450 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:46,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:46,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-10 22:51:46,451 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:46,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:46,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1348886772, now seen corresponding path program 11 times [2022-02-10 22:51:46,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:46,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560012242] [2022-02-10 22:51:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:46,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:51:46,524 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:46,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:51:46,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560012242] [2022-02-10 22:51:46,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560012242] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:51:46,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:51:46,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:51:46,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291825879] [2022-02-10 22:51:46,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:51:46,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:51:46,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:51:46,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:51:46,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:51:46,525 INFO L87 Difference]: Start difference. First operand 50373 states and 223274 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:47,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:47,236 INFO L93 Difference]: Finished difference Result 52563 states and 228703 transitions. [2022-02-10 22:51:47,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:51:47,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:47,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:47,510 INFO L225 Difference]: With dead ends: 52563 [2022-02-10 22:51:47,510 INFO L226 Difference]: Without dead ends: 50415 [2022-02-10 22:51:47,510 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 22:51:47,510 INFO L934 BasicCegarLoop]: 260 mSDtfsCounter, 143 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:47,510 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 806 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:51:47,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50415 states. [2022-02-10 22:51:48,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50415 to 41178. [2022-02-10 22:51:48,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41178 states, 41177 states have (on average 4.4477013866964565) internal successors, (183143), 41177 states have internal predecessors, (183143), 0 states have call successors, (0), 0 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 22:51:48,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41178 states to 41178 states and 183143 transitions. [2022-02-10 22:51:48,867 INFO L78 Accepts]: Start accepts. Automaton has 41178 states and 183143 transitions. Word has length 193 [2022-02-10 22:51:48,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:48,868 INFO L470 AbstractCegarLoop]: Abstraction has 41178 states and 183143 transitions. [2022-02-10 22:51:48,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:48,868 INFO L276 IsEmpty]: Start isEmpty. Operand 41178 states and 183143 transitions. [2022-02-10 22:51:48,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:51:48,966 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:48,967 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:48,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-10 22:51:48,968 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:48,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:48,968 INFO L85 PathProgramCache]: Analyzing trace with hash 146727776, now seen corresponding path program 10 times [2022-02-10 22:51:48,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:48,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329287058] [2022-02-10 22:51:48,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:48,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:51:49,132 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:49,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:51:49,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329287058] [2022-02-10 22:51:49,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329287058] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:51:49,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:51:49,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 22:51:49,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30653298] [2022-02-10 22:51:49,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:51:49,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 22:51:49,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:51:49,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 22:51:49,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:51:49,134 INFO L87 Difference]: Start difference. First operand 41178 states and 183143 transitions. Second operand has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:49,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:49,735 INFO L93 Difference]: Finished difference Result 43562 states and 193621 transitions. [2022-02-10 22:51:49,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:51:49,735 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:49,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:49,894 INFO L225 Difference]: With dead ends: 43562 [2022-02-10 22:51:49,894 INFO L226 Difference]: Without dead ends: 43466 [2022-02-10 22:51:49,894 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:51:49,895 INFO L934 BasicCegarLoop]: 193 mSDtfsCounter, 389 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:49,895 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 645 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:51:49,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43466 states. [2022-02-10 22:51:50,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43466 to 41274. [2022-02-10 22:51:51,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41274 states, 41273 states have (on average 4.443946405640491) internal successors, (183415), 41273 states have internal predecessors, (183415), 0 states have call successors, (0), 0 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 22:51:51,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41274 states to 41274 states and 183415 transitions. [2022-02-10 22:51:51,174 INFO L78 Accepts]: Start accepts. Automaton has 41274 states and 183415 transitions. Word has length 193 [2022-02-10 22:51:51,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:51,174 INFO L470 AbstractCegarLoop]: Abstraction has 41274 states and 183415 transitions. [2022-02-10 22:51:51,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:51,174 INFO L276 IsEmpty]: Start isEmpty. Operand 41274 states and 183415 transitions. [2022-02-10 22:51:51,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:51:51,273 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:51,273 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:51,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-10 22:51:51,273 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:51,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:51,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1582888738, now seen corresponding path program 11 times [2022-02-10 22:51:51,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:51,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698978235] [2022-02-10 22:51:51,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:51,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:51:51,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:51,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:51:51,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698978235] [2022-02-10 22:51:51,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698978235] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:51:51,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:51:51,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:51:51,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004001793] [2022-02-10 22:51:51,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:51:51,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:51:51,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:51:51,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:51:51,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:51:51,422 INFO L87 Difference]: Start difference. First operand 41274 states and 183415 transitions. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:52,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:52,180 INFO L93 Difference]: Finished difference Result 51804 states and 227405 transitions. [2022-02-10 22:51:52,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 22:51:52,180 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:52,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:52,384 INFO L225 Difference]: With dead ends: 51804 [2022-02-10 22:51:52,384 INFO L226 Difference]: Without dead ends: 51360 [2022-02-10 22:51:52,384 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:51:52,385 INFO L934 BasicCegarLoop]: 215 mSDtfsCounter, 345 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:52,385 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 897 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:51:52,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51360 states. [2022-02-10 22:51:53,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51360 to 42522. [2022-02-10 22:51:53,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42522 states, 42521 states have (on average 4.439571035488347) internal successors, (188775), 42521 states have internal predecessors, (188775), 0 states have call successors, (0), 0 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 22:51:53,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42522 states to 42522 states and 188775 transitions. [2022-02-10 22:51:53,811 INFO L78 Accepts]: Start accepts. Automaton has 42522 states and 188775 transitions. Word has length 193 [2022-02-10 22:51:53,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:53,811 INFO L470 AbstractCegarLoop]: Abstraction has 42522 states and 188775 transitions. [2022-02-10 22:51:53,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:53,811 INFO L276 IsEmpty]: Start isEmpty. Operand 42522 states and 188775 transitions. [2022-02-10 22:51:53,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:51:53,919 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:53,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:53,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-10 22:51:53,920 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:53,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:53,920 INFO L85 PathProgramCache]: Analyzing trace with hash -852612704, now seen corresponding path program 12 times [2022-02-10 22:51:53,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:53,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495551539] [2022-02-10 22:51:53,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:53,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:51:54,284 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:54,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:51:54,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495551539] [2022-02-10 22:51:54,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495551539] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:51:54,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:51:54,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:51:54,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798388170] [2022-02-10 22:51:54,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:51:54,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:51:54,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:51:54,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:51:54,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:51:54,286 INFO L87 Difference]: Start difference. First operand 42522 states and 188775 transitions. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:55,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:55,241 INFO L93 Difference]: Finished difference Result 63582 states and 284056 transitions. [2022-02-10 22:51:55,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 22:51:55,241 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:55,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:55,518 INFO L225 Difference]: With dead ends: 63582 [2022-02-10 22:51:55,519 INFO L226 Difference]: Without dead ends: 63582 [2022-02-10 22:51:55,519 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-02-10 22:51:55,520 INFO L934 BasicCegarLoop]: 215 mSDtfsCounter, 440 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:55,520 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [440 Valid, 736 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:51:55,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63582 states. [2022-02-10 22:51:56,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63582 to 38583. [2022-02-10 22:51:56,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38583 states, 38582 states have (on average 4.440308952361205) internal successors, (171316), 38582 states have internal predecessors, (171316), 0 states have call successors, (0), 0 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 22:51:56,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38583 states to 38583 states and 171316 transitions. [2022-02-10 22:51:56,996 INFO L78 Accepts]: Start accepts. Automaton has 38583 states and 171316 transitions. Word has length 193 [2022-02-10 22:51:56,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:56,996 INFO L470 AbstractCegarLoop]: Abstraction has 38583 states and 171316 transitions. [2022-02-10 22:51:56,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:56,996 INFO L276 IsEmpty]: Start isEmpty. Operand 38583 states and 171316 transitions. [2022-02-10 22:51:57,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-10 22:51:57,091 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:57,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:57,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-10 22:51:57,091 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:57,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:57,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1701096112, now seen corresponding path program 13 times [2022-02-10 22:51:57,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:57,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083707718] [2022-02-10 22:51:57,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:57,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:51:57,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:51:57,151 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:51:57,151 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083707718] [2022-02-10 22:51:57,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083707718] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:51:57,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:51:57,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:51:57,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626452493] [2022-02-10 22:51:57,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:51:57,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:51:57,152 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:51:57,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:51:57,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:51:57,152 INFO L87 Difference]: Start difference. First operand 38583 states and 171316 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:57,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:51:57,721 INFO L93 Difference]: Finished difference Result 39798 states and 174169 transitions. [2022-02-10 22:51:57,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:51:57,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-02-10 22:51:57,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:51:57,873 INFO L225 Difference]: With dead ends: 39798 [2022-02-10 22:51:57,873 INFO L226 Difference]: Without dead ends: 39654 [2022-02-10 22:51:57,873 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 22:51:57,878 INFO L934 BasicCegarLoop]: 249 mSDtfsCounter, 132 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:51:57,881 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 615 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:51:57,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39654 states. [2022-02-10 22:51:58,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39654 to 27853. [2022-02-10 22:51:58,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27853 states, 27852 states have (on average 4.358753410886112) internal successors, (121400), 27852 states have internal predecessors, (121400), 0 states have call successors, (0), 0 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 22:51:58,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27853 states to 27853 states and 121400 transitions. [2022-02-10 22:51:58,773 INFO L78 Accepts]: Start accepts. Automaton has 27853 states and 121400 transitions. Word has length 193 [2022-02-10 22:51:58,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:51:58,774 INFO L470 AbstractCegarLoop]: Abstraction has 27853 states and 121400 transitions. [2022-02-10 22:51:58,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 22:51:58,774 INFO L276 IsEmpty]: Start isEmpty. Operand 27853 states and 121400 transitions. [2022-02-10 22:51:58,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-10 22:51:58,846 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:51:58,846 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:58,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-10 22:51:58,846 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:51:58,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:51:58,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2026728165, now seen corresponding path program 1 times [2022-02-10 22:51:58,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:51:58,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662374285] [2022-02-10 22:51:58,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:51:58,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:51:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:52:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:52:00,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:52:00,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662374285] [2022-02-10 22:52:00,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662374285] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:52:00,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017105783] [2022-02-10 22:52:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:52:00,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:52:00,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:52:00,812 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:52:00,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-10 22:52:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:52:00,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 119 conjunts are in the unsatisfiable core [2022-02-10 22:52:00,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:52:01,078 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-10 22:52:01,147 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-02-10 22:52:01,148 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-02-10 22:52:01,232 INFO L353 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-02-10 22:52:01,233 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2022-02-10 22:52:02,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:52:02,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:52:02,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:52:02,261 INFO L353 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-02-10 22:52:02,261 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 33 [2022-02-10 22:52:02,617 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-10 22:52:03,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:52:03,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:52:03,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:52:03,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:52:03,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:52:03,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:52:03,718 INFO L353 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2022-02-10 22:52:03,718 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 20 [2022-02-10 22:52:04,090 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-10 22:52:04,859 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-10 22:52:05,057 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-10 22:52:05,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:52:05,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:52:05,636 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 33 [2022-02-10 22:52:06,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:52:06,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:52:06,063 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 33 [2022-02-10 22:52:06,981 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 11 [2022-02-10 22:52:07,004 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:52:07,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:52:16,665 INFO L353 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-02-10 22:52:16,665 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 225 treesize of output 123 [2022-02-10 22:52:16,791 INFO L353 Elim1Store]: treesize reduction 81, result has 54.7 percent of original size [2022-02-10 22:52:16,792 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 927562 treesize of output 894627