/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:29:29,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:29:29,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:29:30,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 02:29:30,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 02:29:30,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 02:29:30,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 02:29:30,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 02:29:30,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 02:29:30,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 02:29:30,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 02:29:30,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 02:29:30,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 02:29:30,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 02:29:30,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 02:29:30,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 02:29:30,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 02:29:30,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 02:29:30,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 02:29:30,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 02:29:30,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 02:29:30,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 02:29:30,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 02:29:30,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 02:29:30,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 02:29:30,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 02:29:30,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 02:29:30,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 02:29:30,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 02:29:30,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 02:29:30,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 02:29:30,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 02:29:30,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 02:29:30,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 02:29:30,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 02:29:30,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 02:29:30,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 02:29:30,126 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:29:30,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:29:30,127 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:29:30,127 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:29:30,129 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:29:30,129 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:29:30,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:29:30,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:29:30,133 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:29:30,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:29:30,135 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:29:30,135 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:29:30,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:29:30,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:29:30,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:29:30,136 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:29:30,136 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:29:30,137 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:29:30,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:29:30,137 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:29:30,137 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:29:30,137 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:29:30,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:29:30,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:29:30,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:29:30,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:29:30,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:29:30,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:29:30,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:29:30,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:29:30,140 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:29:30,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:29:30,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:29:30,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:29:30,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:29:30,611 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:29:30,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.UNBOUNDED.pals.c [2022-10-16 02:29:30,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15efdb5eb/09d33ea569944e0b9a1f80745167f3af/FLAGa3b2ede5a [2022-10-16 02:29:31,364 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:29:31,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.UNBOUNDED.pals.c [2022-10-16 02:29:31,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15efdb5eb/09d33ea569944e0b9a1f80745167f3af/FLAGa3b2ede5a [2022-10-16 02:29:31,697 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15efdb5eb/09d33ea569944e0b9a1f80745167f3af [2022-10-16 02:29:31,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:29:31,709 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:29:31,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:29:31,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:29:31,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:29:31,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:31" (1/1) ... [2022-10-16 02:29:31,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2373db86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31, skipping insertion in model container [2022-10-16 02:29:31,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:31" (1/1) ... [2022-10-16 02:29:31,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:29:31,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:29:32,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.UNBOUNDED.pals.c[14577,14590] [2022-10-16 02:29:32,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:29:32,057 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:29:32,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.UNBOUNDED.pals.c[14577,14590] [2022-10-16 02:29:32,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:29:32,155 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:29:32,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:32 WrapperNode [2022-10-16 02:29:32,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:29:32,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:29:32,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:29:32,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:29:32,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:32" (1/1) ... [2022-10-16 02:29:32,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:32" (1/1) ... [2022-10-16 02:29:32,265 INFO L138 Inliner]: procedures = 32, calls = 47, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 536 [2022-10-16 02:29:32,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:29:32,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:29:32,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:29:32,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:29:32,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:32" (1/1) ... [2022-10-16 02:29:32,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:32" (1/1) ... [2022-10-16 02:29:32,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:32" (1/1) ... [2022-10-16 02:29:32,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:32" (1/1) ... [2022-10-16 02:29:32,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:32" (1/1) ... [2022-10-16 02:29:32,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:32" (1/1) ... [2022-10-16 02:29:32,323 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:32" (1/1) ... [2022-10-16 02:29:32,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:32" (1/1) ... [2022-10-16 02:29:32,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:29:32,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:29:32,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:29:32,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:29:32,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:32" (1/1) ... [2022-10-16 02:29:32,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:29:32,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:29:32,398 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) [2022-10-16 02:29:32,422 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 [2022-10-16 02:29:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2022-10-16 02:29:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2022-10-16 02:29:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:29:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2022-10-16 02:29:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2022-10-16 02:29:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 02:29:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 02:29:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 02:29:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 02:29:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:29:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2022-10-16 02:29:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2022-10-16 02:29:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:29:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:29:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2022-10-16 02:29:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2022-10-16 02:29:32,646 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:29:32,656 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:29:33,598 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:29:33,614 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:29:33,615 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 02:29:33,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:33 BoogieIcfgContainer [2022-10-16 02:29:33,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:29:33,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:29:33,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:29:33,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:29:33,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:29:31" (1/3) ... [2022-10-16 02:29:33,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2186c5d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:33, skipping insertion in model container [2022-10-16 02:29:33,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:32" (2/3) ... [2022-10-16 02:29:33,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2186c5d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:33, skipping insertion in model container [2022-10-16 02:29:33,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:33" (3/3) ... [2022-10-16 02:29:33,630 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.5.ufo.UNBOUNDED.pals.c [2022-10-16 02:29:33,661 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:29:33,662 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:29:33,756 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:29:33,768 INFO L357 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6c06efb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:29:33,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:29:33,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 162 states have (on average 1.5679012345679013) internal successors, (254), 165 states have internal predecessors, (254), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 02:29:33,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 02:29:33,808 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:33,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:33,810 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:33,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:33,819 INFO L85 PathProgramCache]: Analyzing trace with hash 157451751, now seen corresponding path program 1 times [2022-10-16 02:29:33,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:33,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582983998] [2022-10-16 02:29:33,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:33,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:34,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:29:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:34,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:29:34,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:34,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582983998] [2022-10-16 02:29:34,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582983998] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:34,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:34,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 02:29:34,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304976036] [2022-10-16 02:29:34,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:34,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 02:29:34,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:34,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 02:29:34,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:29:34,121 INFO L87 Difference]: Start difference. First operand has 200 states, 162 states have (on average 1.5679012345679013) internal successors, (254), 165 states have internal predecessors, (254), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:29:34,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:34,163 INFO L93 Difference]: Finished difference Result 195 states and 298 transitions. [2022-10-16 02:29:34,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 02:29:34,166 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-10-16 02:29:34,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:34,178 INFO L225 Difference]: With dead ends: 195 [2022-10-16 02:29:34,179 INFO L226 Difference]: Without dead ends: 195 [2022-10-16 02:29:34,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:29:34,185 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:34,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:34,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-10-16 02:29:34,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-10-16 02:29:34,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 159 states have (on average 1.509433962264151) internal successors, (240), 160 states have internal predecessors, (240), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 02:29:34,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 298 transitions. [2022-10-16 02:29:34,279 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 298 transitions. Word has length 13 [2022-10-16 02:29:34,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:34,280 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 298 transitions. [2022-10-16 02:29:34,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:29:34,280 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 298 transitions. [2022-10-16 02:29:34,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 02:29:34,283 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:34,283 INFO L195 NwaCegarLoop]: 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] [2022-10-16 02:29:34,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:29:34,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:34,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:34,285 INFO L85 PathProgramCache]: Analyzing trace with hash 589289062, now seen corresponding path program 1 times [2022-10-16 02:29:34,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:34,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9500262] [2022-10-16 02:29:34,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:34,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:34,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:29:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:34,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:29:34,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:34,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9500262] [2022-10-16 02:29:34,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9500262] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:34,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:34,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:29:34,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960168989] [2022-10-16 02:29:34,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:34,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:29:34,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:34,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:29:34,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:29:34,680 INFO L87 Difference]: Start difference. First operand 195 states and 298 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:29:34,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:34,775 INFO L93 Difference]: Finished difference Result 197 states and 300 transitions. [2022-10-16 02:29:34,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:29:34,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-10-16 02:29:34,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:34,779 INFO L225 Difference]: With dead ends: 197 [2022-10-16 02:29:34,779 INFO L226 Difference]: Without dead ends: 195 [2022-10-16 02:29:34,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:29:34,782 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 171 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:34,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1253 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:34,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-10-16 02:29:34,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-10-16 02:29:34,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 159 states have (on average 1.4339622641509433) internal successors, (228), 160 states have internal predecessors, (228), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 02:29:34,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 286 transitions. [2022-10-16 02:29:34,802 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 286 transitions. Word has length 44 [2022-10-16 02:29:34,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:34,803 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 286 transitions. [2022-10-16 02:29:34,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:29:34,803 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 286 transitions. [2022-10-16 02:29:34,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 02:29:34,805 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:34,806 INFO L195 NwaCegarLoop]: 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] [2022-10-16 02:29:34,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:29:34,806 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:34,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:34,807 INFO L85 PathProgramCache]: Analyzing trace with hash 256458786, now seen corresponding path program 1 times [2022-10-16 02:29:34,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:34,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440715037] [2022-10-16 02:29:34,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:34,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:35,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:35,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:29:35,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:35,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440715037] [2022-10-16 02:29:35,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440715037] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:35,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:35,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:35,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255565518] [2022-10-16 02:29:35,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:35,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:35,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:35,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:35,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:35,266 INFO L87 Difference]: Start difference. First operand 195 states and 286 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:29:35,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:35,349 INFO L93 Difference]: Finished difference Result 199 states and 289 transitions. [2022-10-16 02:29:35,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:35,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2022-10-16 02:29:35,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:35,353 INFO L225 Difference]: With dead ends: 199 [2022-10-16 02:29:35,353 INFO L226 Difference]: Without dead ends: 199 [2022-10-16 02:29:35,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:35,363 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 5 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:35,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 830 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:35,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-10-16 02:29:35,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2022-10-16 02:29:35,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 162 states have (on average 1.4259259259259258) internal successors, (231), 163 states have internal predecessors, (231), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-10-16 02:29:35,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 289 transitions. [2022-10-16 02:29:35,413 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 289 transitions. Word has length 55 [2022-10-16 02:29:35,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:35,414 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 289 transitions. [2022-10-16 02:29:35,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:29:35,415 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 289 transitions. [2022-10-16 02:29:35,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 02:29:35,418 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:35,418 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:35,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:29:35,419 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:35,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:35,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1571313168, now seen corresponding path program 1 times [2022-10-16 02:29:35,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:35,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116990785] [2022-10-16 02:29:35,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:35,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:35,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:35,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:35,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 02:29:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:35,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:35,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:35,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116990785] [2022-10-16 02:29:35,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116990785] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:35,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:35,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:29:35,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930003105] [2022-10-16 02:29:35,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:35,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:29:35,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:35,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:29:35,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:29:35,548 INFO L87 Difference]: Start difference. First operand 199 states and 289 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:35,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:35,591 INFO L93 Difference]: Finished difference Result 361 states and 529 transitions. [2022-10-16 02:29:35,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:29:35,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 71 [2022-10-16 02:29:35,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:35,597 INFO L225 Difference]: With dead ends: 361 [2022-10-16 02:29:35,597 INFO L226 Difference]: Without dead ends: 361 [2022-10-16 02:29:35,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:29:35,609 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 222 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:35,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 597 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:35,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-10-16 02:29:35,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 352. [2022-10-16 02:29:35,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 280 states have (on average 1.4464285714285714) internal successors, (405), 282 states have internal predecessors, (405), 57 states have call successors, (57), 14 states have call predecessors, (57), 14 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-10-16 02:29:35,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 519 transitions. [2022-10-16 02:29:35,657 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 519 transitions. Word has length 71 [2022-10-16 02:29:35,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:35,659 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 519 transitions. [2022-10-16 02:29:35,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:35,660 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 519 transitions. [2022-10-16 02:29:35,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 02:29:35,662 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:35,662 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:35,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:29:35,663 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:35,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:35,664 INFO L85 PathProgramCache]: Analyzing trace with hash 348885538, now seen corresponding path program 1 times [2022-10-16 02:29:35,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:35,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236244418] [2022-10-16 02:29:35,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:35,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:35,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:35,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:35,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 02:29:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:35,954 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:35,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:35,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236244418] [2022-10-16 02:29:35,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236244418] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:35,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:35,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:29:35,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887711526] [2022-10-16 02:29:35,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:35,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:29:35,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:35,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:29:35,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:35,957 INFO L87 Difference]: Start difference. First operand 352 states and 519 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:36,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:36,294 INFO L93 Difference]: Finished difference Result 677 states and 1014 transitions. [2022-10-16 02:29:36,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:29:36,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 72 [2022-10-16 02:29:36,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:36,303 INFO L225 Difference]: With dead ends: 677 [2022-10-16 02:29:36,303 INFO L226 Difference]: Without dead ends: 677 [2022-10-16 02:29:36,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:29:36,304 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 761 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:36,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 740 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:29:36,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-10-16 02:29:36,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 446. [2022-10-16 02:29:36,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 370 states have (on average 1.4324324324324325) internal successors, (530), 371 states have internal predecessors, (530), 59 states have call successors, (59), 16 states have call predecessors, (59), 16 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-10-16 02:29:36,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 648 transitions. [2022-10-16 02:29:36,333 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 648 transitions. Word has length 72 [2022-10-16 02:29:36,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:36,334 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 648 transitions. [2022-10-16 02:29:36,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:36,335 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 648 transitions. [2022-10-16 02:29:36,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 02:29:36,337 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:36,337 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:36,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:29:36,338 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:36,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:36,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1827557999, now seen corresponding path program 1 times [2022-10-16 02:29:36,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:36,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315594785] [2022-10-16 02:29:36,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:36,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:36,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:36,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 02:29:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:36,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:36,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315594785] [2022-10-16 02:29:36,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315594785] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:36,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:36,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:29:36,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055580875] [2022-10-16 02:29:36,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:36,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:29:36,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:36,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:29:36,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:36,504 INFO L87 Difference]: Start difference. First operand 446 states and 648 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:36,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:36,821 INFO L93 Difference]: Finished difference Result 679 states and 1014 transitions. [2022-10-16 02:29:36,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:29:36,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 73 [2022-10-16 02:29:36,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:36,828 INFO L225 Difference]: With dead ends: 679 [2022-10-16 02:29:36,828 INFO L226 Difference]: Without dead ends: 679 [2022-10-16 02:29:36,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:29:36,833 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 758 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:36,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 742 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:29:36,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-10-16 02:29:36,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 450. [2022-10-16 02:29:36,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 374 states have (on average 1.427807486631016) internal successors, (534), 375 states have internal predecessors, (534), 59 states have call successors, (59), 16 states have call predecessors, (59), 16 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-10-16 02:29:36,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 652 transitions. [2022-10-16 02:29:36,880 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 652 transitions. Word has length 73 [2022-10-16 02:29:36,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:36,883 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 652 transitions. [2022-10-16 02:29:36,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:36,883 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 652 transitions. [2022-10-16 02:29:36,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 02:29:36,886 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:36,886 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:36,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 02:29:36,887 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:36,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:36,888 INFO L85 PathProgramCache]: Analyzing trace with hash -47235395, now seen corresponding path program 1 times [2022-10-16 02:29:36,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:36,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257838556] [2022-10-16 02:29:36,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:36,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:37,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:37,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:37,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 02:29:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:37,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:37,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:37,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257838556] [2022-10-16 02:29:37,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257838556] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:37,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:37,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:37,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89397078] [2022-10-16 02:29:37,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:37,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:37,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:37,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:37,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:37,134 INFO L87 Difference]: Start difference. First operand 450 states and 652 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:37,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:37,391 INFO L93 Difference]: Finished difference Result 679 states and 1012 transitions. [2022-10-16 02:29:37,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:37,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 75 [2022-10-16 02:29:37,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:37,398 INFO L225 Difference]: With dead ends: 679 [2022-10-16 02:29:37,399 INFO L226 Difference]: Without dead ends: 679 [2022-10-16 02:29:37,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:37,400 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 227 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:37,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 715 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:29:37,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-10-16 02:29:37,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 450. [2022-10-16 02:29:37,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 374 states have (on average 1.4224598930481283) internal successors, (532), 375 states have internal predecessors, (532), 59 states have call successors, (59), 16 states have call predecessors, (59), 16 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-10-16 02:29:37,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 650 transitions. [2022-10-16 02:29:37,421 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 650 transitions. Word has length 75 [2022-10-16 02:29:37,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:37,422 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 650 transitions. [2022-10-16 02:29:37,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:37,422 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 650 transitions. [2022-10-16 02:29:37,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 02:29:37,424 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:37,424 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:37,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:29:37,424 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:37,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:37,425 INFO L85 PathProgramCache]: Analyzing trace with hash 827473940, now seen corresponding path program 1 times [2022-10-16 02:29:37,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:37,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192040872] [2022-10-16 02:29:37,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:37,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:37,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:37,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:37,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:37,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:37,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:37,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192040872] [2022-10-16 02:29:37,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192040872] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:37,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:37,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:37,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196352574] [2022-10-16 02:29:37,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:37,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:37,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:37,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:37,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:37,672 INFO L87 Difference]: Start difference. First operand 450 states and 650 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 02:29:37,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:37,702 INFO L93 Difference]: Finished difference Result 460 states and 658 transitions. [2022-10-16 02:29:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:37,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 76 [2022-10-16 02:29:37,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:37,706 INFO L225 Difference]: With dead ends: 460 [2022-10-16 02:29:37,706 INFO L226 Difference]: Without dead ends: 460 [2022-10-16 02:29:37,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:37,707 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 6 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:37,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 842 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:37,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-10-16 02:29:37,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2022-10-16 02:29:37,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 382 states have (on average 1.4136125654450262) internal successors, (540), 383 states have internal predecessors, (540), 59 states have call successors, (59), 18 states have call predecessors, (59), 18 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-10-16 02:29:37,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 658 transitions. [2022-10-16 02:29:37,725 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 658 transitions. Word has length 76 [2022-10-16 02:29:37,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:37,726 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 658 transitions. [2022-10-16 02:29:37,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 02:29:37,726 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 658 transitions. [2022-10-16 02:29:37,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-16 02:29:37,727 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:37,728 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:37,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:29:37,728 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:37,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:37,729 INFO L85 PathProgramCache]: Analyzing trace with hash 193576026, now seen corresponding path program 1 times [2022-10-16 02:29:37,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:37,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149355276] [2022-10-16 02:29:37,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:37,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:37,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:37,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:37,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:37,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:37,951 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:37,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:37,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149355276] [2022-10-16 02:29:37,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149355276] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:37,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:37,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:37,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295236084] [2022-10-16 02:29:37,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:37,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:37,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:37,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:37,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:37,954 INFO L87 Difference]: Start difference. First operand 460 states and 658 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:29:37,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:37,995 INFO L93 Difference]: Finished difference Result 470 states and 666 transitions. [2022-10-16 02:29:37,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:37,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 84 [2022-10-16 02:29:37,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:37,999 INFO L225 Difference]: With dead ends: 470 [2022-10-16 02:29:38,000 INFO L226 Difference]: Without dead ends: 470 [2022-10-16 02:29:38,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:38,001 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 6 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:38,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 828 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:38,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-10-16 02:29:38,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2022-10-16 02:29:38,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 390 states have (on average 1.405128205128205) internal successors, (548), 391 states have internal predecessors, (548), 59 states have call successors, (59), 20 states have call predecessors, (59), 20 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-10-16 02:29:38,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 666 transitions. [2022-10-16 02:29:38,019 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 666 transitions. Word has length 84 [2022-10-16 02:29:38,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:38,019 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 666 transitions. [2022-10-16 02:29:38,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:29:38,020 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 666 transitions. [2022-10-16 02:29:38,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 02:29:38,022 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:38,022 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:38,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 02:29:38,023 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:38,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:38,023 INFO L85 PathProgramCache]: Analyzing trace with hash 910678340, now seen corresponding path program 1 times [2022-10-16 02:29:38,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:38,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881112263] [2022-10-16 02:29:38,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:38,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,251 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:38,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:38,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881112263] [2022-10-16 02:29:38,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881112263] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:38,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:38,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:38,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340151693] [2022-10-16 02:29:38,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:38,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:38,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:38,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:38,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:38,255 INFO L87 Difference]: Start difference. First operand 470 states and 666 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 02:29:38,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:38,289 INFO L93 Difference]: Finished difference Result 478 states and 672 transitions. [2022-10-16 02:29:38,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:38,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 92 [2022-10-16 02:29:38,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:38,293 INFO L225 Difference]: With dead ends: 478 [2022-10-16 02:29:38,294 INFO L226 Difference]: Without dead ends: 478 [2022-10-16 02:29:38,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:38,295 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 5 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:38,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 837 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:38,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-10-16 02:29:38,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2022-10-16 02:29:38,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 396 states have (on average 1.398989898989899) internal successors, (554), 397 states have internal predecessors, (554), 59 states have call successors, (59), 22 states have call predecessors, (59), 22 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-10-16 02:29:38,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 672 transitions. [2022-10-16 02:29:38,314 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 672 transitions. Word has length 92 [2022-10-16 02:29:38,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:38,315 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 672 transitions. [2022-10-16 02:29:38,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 02:29:38,315 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 672 transitions. [2022-10-16 02:29:38,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 02:29:38,317 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:38,317 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:38,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 02:29:38,317 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:38,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:38,318 INFO L85 PathProgramCache]: Analyzing trace with hash -987829653, now seen corresponding path program 1 times [2022-10-16 02:29:38,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:38,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725128525] [2022-10-16 02:29:38,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:38,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,569 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:38,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:38,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725128525] [2022-10-16 02:29:38,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725128525] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:38,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:38,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:38,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385303803] [2022-10-16 02:29:38,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:38,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:38,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:38,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:38,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:38,572 INFO L87 Difference]: Start difference. First operand 478 states and 672 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 02:29:38,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:38,608 INFO L93 Difference]: Finished difference Result 488 states and 680 transitions. [2022-10-16 02:29:38,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:38,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 92 [2022-10-16 02:29:38,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:38,612 INFO L225 Difference]: With dead ends: 488 [2022-10-16 02:29:38,612 INFO L226 Difference]: Without dead ends: 488 [2022-10-16 02:29:38,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:38,614 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 6 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:38,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 828 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:38,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-10-16 02:29:38,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2022-10-16 02:29:38,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 404 states have (on average 1.391089108910891) internal successors, (562), 405 states have internal predecessors, (562), 59 states have call successors, (59), 24 states have call predecessors, (59), 24 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-10-16 02:29:38,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 680 transitions. [2022-10-16 02:29:38,634 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 680 transitions. Word has length 92 [2022-10-16 02:29:38,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:38,634 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 680 transitions. [2022-10-16 02:29:38,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 02:29:38,635 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 680 transitions. [2022-10-16 02:29:38,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-16 02:29:38,636 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:38,637 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:38,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:29:38,637 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:38,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:38,638 INFO L85 PathProgramCache]: Analyzing trace with hash -551537553, now seen corresponding path program 1 times [2022-10-16 02:29:38,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:38,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137415213] [2022-10-16 02:29:38,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:38,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:38,940 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 02:29:38,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:38,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137415213] [2022-10-16 02:29:38,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137415213] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:38,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:38,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:38,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484757081] [2022-10-16 02:29:38,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:38,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:38,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:38,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:38,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:38,944 INFO L87 Difference]: Start difference. First operand 488 states and 680 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 02:29:38,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:38,979 INFO L93 Difference]: Finished difference Result 500 states and 690 transitions. [2022-10-16 02:29:38,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:38,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 100 [2022-10-16 02:29:38,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:38,983 INFO L225 Difference]: With dead ends: 500 [2022-10-16 02:29:38,984 INFO L226 Difference]: Without dead ends: 500 [2022-10-16 02:29:38,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:38,985 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 7 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:38,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 839 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:38,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-10-16 02:29:38,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2022-10-16 02:29:39,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 414 states have (on average 1.3816425120772946) internal successors, (572), 415 states have internal predecessors, (572), 59 states have call successors, (59), 26 states have call predecessors, (59), 26 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-10-16 02:29:39,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 690 transitions. [2022-10-16 02:29:39,003 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 690 transitions. Word has length 100 [2022-10-16 02:29:39,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:39,003 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 690 transitions. [2022-10-16 02:29:39,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 02:29:39,004 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 690 transitions. [2022-10-16 02:29:39,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 02:29:39,006 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:39,006 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:39,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:29:39,007 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:39,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:39,007 INFO L85 PathProgramCache]: Analyzing trace with hash -397643204, now seen corresponding path program 1 times [2022-10-16 02:29:39,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:39,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872709521] [2022-10-16 02:29:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:39,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:39,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:39,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:39,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:39,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:39,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:39,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:39,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:29:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:39,446 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:29:39,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:39,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872709521] [2022-10-16 02:29:39,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872709521] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:39,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:39,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:29:39,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825342980] [2022-10-16 02:29:39,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:39,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:29:39,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:39,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:29:39,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:29:39,450 INFO L87 Difference]: Start difference. First operand 500 states and 690 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-16 02:29:39,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:39,702 INFO L93 Difference]: Finished difference Result 975 states and 1358 transitions. [2022-10-16 02:29:39,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:29:39,703 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 103 [2022-10-16 02:29:39,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:39,712 INFO L225 Difference]: With dead ends: 975 [2022-10-16 02:29:39,712 INFO L226 Difference]: Without dead ends: 975 [2022-10-16 02:29:39,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:29:39,714 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 383 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:39,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 2216 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:29:39,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-10-16 02:29:39,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 644. [2022-10-16 02:29:39,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 521 states have (on average 1.3723608445297504) internal successors, (715), 523 states have internal predecessors, (715), 83 states have call successors, (83), 39 states have call predecessors, (83), 39 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2022-10-16 02:29:39,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 881 transitions. [2022-10-16 02:29:39,745 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 881 transitions. Word has length 103 [2022-10-16 02:29:39,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:39,745 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 881 transitions. [2022-10-16 02:29:39,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-16 02:29:39,746 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 881 transitions. [2022-10-16 02:29:39,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 02:29:39,748 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:39,748 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:39,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:29:39,748 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:39,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:39,749 INFO L85 PathProgramCache]: Analyzing trace with hash -2035814869, now seen corresponding path program 1 times [2022-10-16 02:29:39,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:39,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912288149] [2022-10-16 02:29:39,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:39,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:39,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:39,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:39,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:39,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:29:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,015 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:29:40,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:40,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912288149] [2022-10-16 02:29:40,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912288149] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:40,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:40,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:40,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120198698] [2022-10-16 02:29:40,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:40,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:40,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:40,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:40,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:40,019 INFO L87 Difference]: Start difference. First operand 644 states and 881 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 02:29:40,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:40,052 INFO L93 Difference]: Finished difference Result 656 states and 890 transitions. [2022-10-16 02:29:40,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:40,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 107 [2022-10-16 02:29:40,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:40,057 INFO L225 Difference]: With dead ends: 656 [2022-10-16 02:29:40,057 INFO L226 Difference]: Without dead ends: 656 [2022-10-16 02:29:40,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:40,058 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 5 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:40,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 837 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:40,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2022-10-16 02:29:40,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 656. [2022-10-16 02:29:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 530 states have (on average 1.3660377358490565) internal successors, (724), 532 states have internal predecessors, (724), 83 states have call successors, (83), 42 states have call predecessors, (83), 42 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2022-10-16 02:29:40,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 890 transitions. [2022-10-16 02:29:40,080 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 890 transitions. Word has length 107 [2022-10-16 02:29:40,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:40,081 INFO L495 AbstractCegarLoop]: Abstraction has 656 states and 890 transitions. [2022-10-16 02:29:40,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 02:29:40,081 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 890 transitions. [2022-10-16 02:29:40,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-16 02:29:40,083 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:40,083 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:40,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:29:40,083 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:40,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:40,084 INFO L85 PathProgramCache]: Analyzing trace with hash -533964092, now seen corresponding path program 1 times [2022-10-16 02:29:40,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:40,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530008612] [2022-10-16 02:29:40,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:40,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:29:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 02:29:40,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:40,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530008612] [2022-10-16 02:29:40,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530008612] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:40,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:40,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:29:40,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311685893] [2022-10-16 02:29:40,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:40,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:29:40,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:40,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:29:40,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:29:40,414 INFO L87 Difference]: Start difference. First operand 656 states and 890 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 02:29:40,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:40,518 INFO L93 Difference]: Finished difference Result 919 states and 1298 transitions. [2022-10-16 02:29:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:29:40,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 106 [2022-10-16 02:29:40,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:40,526 INFO L225 Difference]: With dead ends: 919 [2022-10-16 02:29:40,527 INFO L226 Difference]: Without dead ends: 919 [2022-10-16 02:29:40,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:29:40,531 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 261 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 2190 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:40,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 2190 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:40,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-10-16 02:29:40,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 660. [2022-10-16 02:29:40,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 532 states have (on average 1.3646616541353382) internal successors, (726), 535 states have internal predecessors, (726), 84 states have call successors, (84), 43 states have call predecessors, (84), 43 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2022-10-16 02:29:40,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 894 transitions. [2022-10-16 02:29:40,576 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 894 transitions. Word has length 106 [2022-10-16 02:29:40,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:40,576 INFO L495 AbstractCegarLoop]: Abstraction has 660 states and 894 transitions. [2022-10-16 02:29:40,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 02:29:40,577 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 894 transitions. [2022-10-16 02:29:40,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-16 02:29:40,581 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:40,581 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:40,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 02:29:40,582 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:40,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:40,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1482497308, now seen corresponding path program 1 times [2022-10-16 02:29:40,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:40,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133199720] [2022-10-16 02:29:40,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:40,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:29:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:40,847 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 02:29:40,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:40,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133199720] [2022-10-16 02:29:40,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133199720] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:40,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:40,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:29:40,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516077436] [2022-10-16 02:29:40,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:40,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:29:40,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:40,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:29:40,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:29:40,853 INFO L87 Difference]: Start difference. First operand 660 states and 894 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 02:29:41,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:41,046 INFO L93 Difference]: Finished difference Result 920 states and 1269 transitions. [2022-10-16 02:29:41,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:29:41,046 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 109 [2022-10-16 02:29:41,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:41,052 INFO L225 Difference]: With dead ends: 920 [2022-10-16 02:29:41,052 INFO L226 Difference]: Without dead ends: 920 [2022-10-16 02:29:41,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:29:41,053 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 503 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:41,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 2178 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:29:41,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2022-10-16 02:29:41,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 703. [2022-10-16 02:29:41,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 584 states have (on average 1.3595890410958904) internal successors, (794), 589 states have internal predecessors, (794), 76 states have call successors, (76), 42 states have call predecessors, (76), 42 states have return successors, (76), 71 states have call predecessors, (76), 76 states have call successors, (76) [2022-10-16 02:29:41,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 946 transitions. [2022-10-16 02:29:41,086 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 946 transitions. Word has length 109 [2022-10-16 02:29:41,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:41,087 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 946 transitions. [2022-10-16 02:29:41,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 02:29:41,087 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 946 transitions. [2022-10-16 02:29:41,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-10-16 02:29:41,089 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:41,089 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:41,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 02:29:41,090 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:41,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:41,091 INFO L85 PathProgramCache]: Analyzing trace with hash -845820830, now seen corresponding path program 1 times [2022-10-16 02:29:41,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:41,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202222359] [2022-10-16 02:29:41,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:41,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:29:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:29:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,556 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 02:29:41,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:41,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202222359] [2022-10-16 02:29:41,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202222359] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:41,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:41,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:29:41,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983438432] [2022-10-16 02:29:41,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:41,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:29:41,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:41,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:29:41,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:29:41,559 INFO L87 Difference]: Start difference. First operand 703 states and 946 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-16 02:29:41,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:41,733 INFO L93 Difference]: Finished difference Result 929 states and 1281 transitions. [2022-10-16 02:29:41,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:29:41,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 111 [2022-10-16 02:29:41,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:41,740 INFO L225 Difference]: With dead ends: 929 [2022-10-16 02:29:41,740 INFO L226 Difference]: Without dead ends: 929 [2022-10-16 02:29:41,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:29:41,742 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 367 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:41,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 2330 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:29:41,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2022-10-16 02:29:41,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 692. [2022-10-16 02:29:41,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 576 states have (on average 1.3576388888888888) internal successors, (782), 581 states have internal predecessors, (782), 74 states have call successors, (74), 41 states have call predecessors, (74), 41 states have return successors, (74), 69 states have call predecessors, (74), 74 states have call successors, (74) [2022-10-16 02:29:41,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 930 transitions. [2022-10-16 02:29:41,775 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 930 transitions. Word has length 111 [2022-10-16 02:29:41,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:41,776 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 930 transitions. [2022-10-16 02:29:41,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-16 02:29:41,776 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 930 transitions. [2022-10-16 02:29:41,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 02:29:41,778 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:41,778 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:41,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 02:29:41,778 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:41,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:41,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1253142038, now seen corresponding path program 1 times [2022-10-16 02:29:41,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:41,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770764871] [2022-10-16 02:29:41,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:41,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:29:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:29:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:41,975 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:29:41,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:41,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770764871] [2022-10-16 02:29:41,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770764871] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:41,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:41,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:41,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345329905] [2022-10-16 02:29:41,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:41,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:41,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:41,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:41,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:41,978 INFO L87 Difference]: Start difference. First operand 692 states and 930 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:42,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:42,137 INFO L93 Difference]: Finished difference Result 1392 states and 1889 transitions. [2022-10-16 02:29:42,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:42,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 112 [2022-10-16 02:29:42,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:42,146 INFO L225 Difference]: With dead ends: 1392 [2022-10-16 02:29:42,146 INFO L226 Difference]: Without dead ends: 1392 [2022-10-16 02:29:42,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:42,147 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 433 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:42,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 1034 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:29:42,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-10-16 02:29:42,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1154. [2022-10-16 02:29:42,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 938 states have (on average 1.349680170575693) internal successors, (1266), 947 states have internal predecessors, (1266), 140 states have call successors, (140), 75 states have call predecessors, (140), 75 states have return successors, (140), 131 states have call predecessors, (140), 140 states have call successors, (140) [2022-10-16 02:29:42,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1546 transitions. [2022-10-16 02:29:42,199 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1546 transitions. Word has length 112 [2022-10-16 02:29:42,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:42,200 INFO L495 AbstractCegarLoop]: Abstraction has 1154 states and 1546 transitions. [2022-10-16 02:29:42,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:42,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1546 transitions. [2022-10-16 02:29:42,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 02:29:42,202 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:42,203 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:42,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 02:29:42,203 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:42,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:42,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1507667202, now seen corresponding path program 1 times [2022-10-16 02:29:42,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:42,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663488414] [2022-10-16 02:29:42,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:42,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:29:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:29:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,314 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:29:42,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:42,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663488414] [2022-10-16 02:29:42,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663488414] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:42,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:42,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:29:42,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588078214] [2022-10-16 02:29:42,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:42,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:29:42,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:42,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:29:42,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:29:42,317 INFO L87 Difference]: Start difference. First operand 1154 states and 1546 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-16 02:29:42,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:42,349 INFO L93 Difference]: Finished difference Result 2045 states and 2712 transitions. [2022-10-16 02:29:42,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:29:42,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 112 [2022-10-16 02:29:42,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:42,362 INFO L225 Difference]: With dead ends: 2045 [2022-10-16 02:29:42,363 INFO L226 Difference]: Without dead ends: 2045 [2022-10-16 02:29:42,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:29:42,364 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 220 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:42,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 627 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:42,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2022-10-16 02:29:42,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1691. [2022-10-16 02:29:42,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1340 states have (on average 1.3425373134328358) internal successors, (1799), 1355 states have internal predecessors, (1799), 230 states have call successors, (230), 120 states have call predecessors, (230), 120 states have return successors, (230), 215 states have call predecessors, (230), 230 states have call successors, (230) [2022-10-16 02:29:42,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2259 transitions. [2022-10-16 02:29:42,435 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2259 transitions. Word has length 112 [2022-10-16 02:29:42,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:42,435 INFO L495 AbstractCegarLoop]: Abstraction has 1691 states and 2259 transitions. [2022-10-16 02:29:42,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-16 02:29:42,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2259 transitions. [2022-10-16 02:29:42,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 02:29:42,438 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:42,438 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:42,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 02:29:42,439 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:42,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:42,439 INFO L85 PathProgramCache]: Analyzing trace with hash -520918908, now seen corresponding path program 1 times [2022-10-16 02:29:42,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:42,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080863763] [2022-10-16 02:29:42,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:42,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:29:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:29:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:42,871 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 02:29:42,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:42,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080863763] [2022-10-16 02:29:42,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080863763] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:42,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:42,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 02:29:42,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563521014] [2022-10-16 02:29:42,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:42,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 02:29:42,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:42,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 02:29:42,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:29:42,874 INFO L87 Difference]: Start difference. First operand 1691 states and 2259 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 02:29:43,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:43,529 INFO L93 Difference]: Finished difference Result 2493 states and 3444 transitions. [2022-10-16 02:29:43,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 02:29:43,530 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 112 [2022-10-16 02:29:43,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:43,544 INFO L225 Difference]: With dead ends: 2493 [2022-10-16 02:29:43,545 INFO L226 Difference]: Without dead ends: 2493 [2022-10-16 02:29:43,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 02:29:43,546 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 898 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:43,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 2695 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 02:29:43,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2022-10-16 02:29:43,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 1697. [2022-10-16 02:29:43,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1340 states have (on average 1.3291044776119403) internal successors, (1781), 1356 states have internal predecessors, (1781), 231 states have call successors, (231), 125 states have call predecessors, (231), 125 states have return successors, (231), 215 states have call predecessors, (231), 231 states have call successors, (231) [2022-10-16 02:29:43,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2243 transitions. [2022-10-16 02:29:43,659 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2243 transitions. Word has length 112 [2022-10-16 02:29:43,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:43,659 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 2243 transitions. [2022-10-16 02:29:43,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 02:29:43,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2243 transitions. [2022-10-16 02:29:43,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-16 02:29:43,664 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:43,664 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:43,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 02:29:43,665 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:43,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:43,665 INFO L85 PathProgramCache]: Analyzing trace with hash -851800033, now seen corresponding path program 1 times [2022-10-16 02:29:43,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:43,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737453239] [2022-10-16 02:29:43,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:43,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:44,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:44,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:44,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:44,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:44,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:44,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:44,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:29:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:44,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:29:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:44,148 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 02:29:44,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:44,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737453239] [2022-10-16 02:29:44,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737453239] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:44,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:44,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:29:44,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966499846] [2022-10-16 02:29:44,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:44,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:29:44,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:44,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:29:44,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:29:44,153 INFO L87 Difference]: Start difference. First operand 1697 states and 2243 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:44,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:44,730 INFO L93 Difference]: Finished difference Result 2681 states and 3630 transitions. [2022-10-16 02:29:44,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 02:29:44,730 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 114 [2022-10-16 02:29:44,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:44,745 INFO L225 Difference]: With dead ends: 2681 [2022-10-16 02:29:44,746 INFO L226 Difference]: Without dead ends: 2681 [2022-10-16 02:29:44,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 02:29:44,748 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 780 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 2364 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:44,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 2364 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:29:44,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2022-10-16 02:29:44,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 1716. [2022-10-16 02:29:44,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1716 states, 1346 states have (on average 1.324665676077266) internal successors, (1783), 1363 states have internal predecessors, (1783), 239 states have call successors, (239), 130 states have call predecessors, (239), 130 states have return successors, (239), 222 states have call predecessors, (239), 239 states have call successors, (239) [2022-10-16 02:29:44,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 2261 transitions. [2022-10-16 02:29:44,827 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 2261 transitions. Word has length 114 [2022-10-16 02:29:44,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:44,828 INFO L495 AbstractCegarLoop]: Abstraction has 1716 states and 2261 transitions. [2022-10-16 02:29:44,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:44,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 2261 transitions. [2022-10-16 02:29:44,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-10-16 02:29:44,832 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:44,832 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:44,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 02:29:44,833 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:44,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:44,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1202474879, now seen corresponding path program 1 times [2022-10-16 02:29:44,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:44,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628792714] [2022-10-16 02:29:44,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:44,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:44,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:44,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 02:29:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:44,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:29:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:44,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:29:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:29:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:29:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:29:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:29:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,023 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:29:45,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:45,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628792714] [2022-10-16 02:29:45,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628792714] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:45,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:45,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:45,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868278266] [2022-10-16 02:29:45,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:45,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:45,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:45,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:45,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:45,026 INFO L87 Difference]: Start difference. First operand 1716 states and 2261 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:45,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:45,176 INFO L93 Difference]: Finished difference Result 3122 states and 4143 transitions. [2022-10-16 02:29:45,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:45,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 115 [2022-10-16 02:29:45,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:45,195 INFO L225 Difference]: With dead ends: 3122 [2022-10-16 02:29:45,196 INFO L226 Difference]: Without dead ends: 3122 [2022-10-16 02:29:45,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:45,198 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 468 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:45,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1242 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:29:45,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2022-10-16 02:29:45,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 2645. [2022-10-16 02:29:45,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2038 states have (on average 1.3209028459273797) internal successors, (2692), 2065 states have internal predecessors, (2692), 394 states have call successors, (394), 212 states have call predecessors, (394), 212 states have return successors, (394), 367 states have call predecessors, (394), 394 states have call successors, (394) [2022-10-16 02:29:45,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3480 transitions. [2022-10-16 02:29:45,310 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3480 transitions. Word has length 115 [2022-10-16 02:29:45,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:45,310 INFO L495 AbstractCegarLoop]: Abstraction has 2645 states and 3480 transitions. [2022-10-16 02:29:45,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:45,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3480 transitions. [2022-10-16 02:29:45,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-10-16 02:29:45,314 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:45,314 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:45,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 02:29:45,316 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:45,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:45,316 INFO L85 PathProgramCache]: Analyzing trace with hash -368547624, now seen corresponding path program 1 times [2022-10-16 02:29:45,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:45,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233234773] [2022-10-16 02:29:45,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:45,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 02:29:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 02:29:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 02:29:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 02:29:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 02:29:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 02:29:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 02:29:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:29:45,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:45,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233234773] [2022-10-16 02:29:45,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233234773] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:45,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:45,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:29:45,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168732040] [2022-10-16 02:29:45,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:45,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:29:45,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:45,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:29:45,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:29:45,416 INFO L87 Difference]: Start difference. First operand 2645 states and 3480 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:45,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:45,534 INFO L93 Difference]: Finished difference Result 3955 states and 5547 transitions. [2022-10-16 02:29:45,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:29:45,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 115 [2022-10-16 02:29:45,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:45,573 INFO L225 Difference]: With dead ends: 3955 [2022-10-16 02:29:45,574 INFO L226 Difference]: Without dead ends: 3955 [2022-10-16 02:29:45,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:29:45,575 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 151 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:45,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 684 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:29:45,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2022-10-16 02:29:45,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 2648. [2022-10-16 02:29:45,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2648 states, 2041 states have (on average 1.3204311611954924) internal successors, (2695), 2068 states have internal predecessors, (2695), 394 states have call successors, (394), 212 states have call predecessors, (394), 212 states have return successors, (394), 367 states have call predecessors, (394), 394 states have call successors, (394) [2022-10-16 02:29:45,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 3483 transitions. [2022-10-16 02:29:45,743 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 3483 transitions. Word has length 115 [2022-10-16 02:29:45,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:45,744 INFO L495 AbstractCegarLoop]: Abstraction has 2648 states and 3483 transitions. [2022-10-16 02:29:45,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:45,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 3483 transitions. [2022-10-16 02:29:45,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-10-16 02:29:45,747 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:45,747 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:45,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 02:29:45,748 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:45,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:45,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1965817841, now seen corresponding path program 1 times [2022-10-16 02:29:45,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:45,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187848985] [2022-10-16 02:29:45,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:45,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 02:29:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 02:29:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 02:29:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 02:29:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 02:29:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 02:29:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 02:29:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:45,882 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:29:45,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:45,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187848985] [2022-10-16 02:29:45,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187848985] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:45,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:45,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:45,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523634350] [2022-10-16 02:29:45,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:45,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:45,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:45,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:45,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:45,884 INFO L87 Difference]: Start difference. First operand 2648 states and 3483 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:46,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:46,037 INFO L93 Difference]: Finished difference Result 4210 states and 5527 transitions. [2022-10-16 02:29:46,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:46,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 115 [2022-10-16 02:29:46,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:46,057 INFO L225 Difference]: With dead ends: 4210 [2022-10-16 02:29:46,057 INFO L226 Difference]: Without dead ends: 4210 [2022-10-16 02:29:46,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:46,058 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 417 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:46,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1246 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:29:46,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2022-10-16 02:29:46,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 3626. [2022-10-16 02:29:46,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 2780 states have (on average 1.3183453237410072) internal successors, (3665), 2817 states have internal predecessors, (3665), 551 states have call successors, (551), 294 states have call predecessors, (551), 294 states have return successors, (551), 514 states have call predecessors, (551), 551 states have call successors, (551) [2022-10-16 02:29:46,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 4767 transitions. [2022-10-16 02:29:46,186 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 4767 transitions. Word has length 115 [2022-10-16 02:29:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:46,187 INFO L495 AbstractCegarLoop]: Abstraction has 3626 states and 4767 transitions. [2022-10-16 02:29:46,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:46,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 4767 transitions. [2022-10-16 02:29:46,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-16 02:29:46,190 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:46,190 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:46,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 02:29:46,191 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:46,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:46,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1320441289, now seen corresponding path program 1 times [2022-10-16 02:29:46,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:46,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682384028] [2022-10-16 02:29:46,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:46,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 02:29:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 02:29:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 02:29:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-16 02:29:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 02:29:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 02:29:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 02:29:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,396 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:29:46,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:46,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682384028] [2022-10-16 02:29:46,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682384028] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:46,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:46,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:46,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126737318] [2022-10-16 02:29:46,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:46,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:46,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:46,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:46,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:46,398 INFO L87 Difference]: Start difference. First operand 3626 states and 4767 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:46,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:46,460 INFO L93 Difference]: Finished difference Result 4010 states and 5474 transitions. [2022-10-16 02:29:46,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:46,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 116 [2022-10-16 02:29:46,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:46,475 INFO L225 Difference]: With dead ends: 4010 [2022-10-16 02:29:46,476 INFO L226 Difference]: Without dead ends: 4010 [2022-10-16 02:29:46,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:46,477 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 368 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:46,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 860 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:46,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4010 states. [2022-10-16 02:29:46,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4010 to 3152. [2022-10-16 02:29:46,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3152 states, 2383 states have (on average 1.3176668065463701) internal successors, (3140), 2407 states have internal predecessors, (3140), 502 states have call successors, (502), 266 states have call predecessors, (502), 266 states have return successors, (502), 478 states have call predecessors, (502), 502 states have call successors, (502) [2022-10-16 02:29:46,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3152 states to 3152 states and 4144 transitions. [2022-10-16 02:29:46,599 INFO L78 Accepts]: Start accepts. Automaton has 3152 states and 4144 transitions. Word has length 116 [2022-10-16 02:29:46,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:46,600 INFO L495 AbstractCegarLoop]: Abstraction has 3152 states and 4144 transitions. [2022-10-16 02:29:46,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:46,601 INFO L276 IsEmpty]: Start isEmpty. Operand 3152 states and 4144 transitions. [2022-10-16 02:29:46,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 02:29:46,603 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:46,603 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:46,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 02:29:46,604 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:46,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:46,604 INFO L85 PathProgramCache]: Analyzing trace with hash 685811798, now seen corresponding path program 1 times [2022-10-16 02:29:46,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:46,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069019409] [2022-10-16 02:29:46,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:46,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 02:29:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 02:29:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 02:29:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-16 02:29:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 02:29:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 02:29:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 02:29:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:46,690 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:29:46,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:46,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069019409] [2022-10-16 02:29:46,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069019409] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:46,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:46,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:29:46,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073426982] [2022-10-16 02:29:46,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:46,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:29:46,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:46,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:29:46,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:29:46,692 INFO L87 Difference]: Start difference. First operand 3152 states and 4144 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:46,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:46,856 INFO L93 Difference]: Finished difference Result 3925 states and 5356 transitions. [2022-10-16 02:29:46,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:29:46,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 118 [2022-10-16 02:29:46,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:46,882 INFO L225 Difference]: With dead ends: 3925 [2022-10-16 02:29:46,882 INFO L226 Difference]: Without dead ends: 3925 [2022-10-16 02:29:46,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:29:46,884 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 151 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:46,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 659 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:29:46,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3925 states. [2022-10-16 02:29:47,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3925 to 3159. [2022-10-16 02:29:47,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3159 states, 2390 states have (on average 1.3167364016736403) internal successors, (3147), 2414 states have internal predecessors, (3147), 502 states have call successors, (502), 266 states have call predecessors, (502), 266 states have return successors, (502), 478 states have call predecessors, (502), 502 states have call successors, (502) [2022-10-16 02:29:47,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 4151 transitions. [2022-10-16 02:29:47,094 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 4151 transitions. Word has length 118 [2022-10-16 02:29:47,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:47,095 INFO L495 AbstractCegarLoop]: Abstraction has 3159 states and 4151 transitions. [2022-10-16 02:29:47,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:47,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 4151 transitions. [2022-10-16 02:29:47,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 02:29:47,097 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:47,097 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:47,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-10-16 02:29:47,098 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:47,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:47,098 INFO L85 PathProgramCache]: Analyzing trace with hash 244049482, now seen corresponding path program 1 times [2022-10-16 02:29:47,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:47,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352950218] [2022-10-16 02:29:47,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:47,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:47,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:47,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 02:29:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:47,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 02:29:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:47,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 02:29:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:47,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-16 02:29:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:47,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 02:29:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:47,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 02:29:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:47,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 02:29:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:47,296 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:29:47,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:47,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352950218] [2022-10-16 02:29:47,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352950218] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:47,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:47,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:47,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272946042] [2022-10-16 02:29:47,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:47,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:47,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:47,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:47,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:47,298 INFO L87 Difference]: Start difference. First operand 3159 states and 4151 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:47,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:47,368 INFO L93 Difference]: Finished difference Result 3818 states and 5231 transitions. [2022-10-16 02:29:47,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:47,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 118 [2022-10-16 02:29:47,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:47,383 INFO L225 Difference]: With dead ends: 3818 [2022-10-16 02:29:47,384 INFO L226 Difference]: Without dead ends: 3818 [2022-10-16 02:29:47,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:47,385 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 277 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:47,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 872 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:47,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2022-10-16 02:29:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 2901. [2022-10-16 02:29:47,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2901 states, 2191 states have (on average 1.3144682793245093) internal successors, (2880), 2210 states have internal predecessors, (2880), 464 states have call successors, (464), 245 states have call predecessors, (464), 245 states have return successors, (464), 445 states have call predecessors, (464), 464 states have call successors, (464) [2022-10-16 02:29:47,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2901 states to 2901 states and 3808 transitions. [2022-10-16 02:29:47,520 INFO L78 Accepts]: Start accepts. Automaton has 2901 states and 3808 transitions. Word has length 118 [2022-10-16 02:29:47,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:47,521 INFO L495 AbstractCegarLoop]: Abstraction has 2901 states and 3808 transitions. [2022-10-16 02:29:47,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:47,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2901 states and 3808 transitions. [2022-10-16 02:29:47,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-10-16 02:29:47,528 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:47,529 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:47,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-10-16 02:29:47,529 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:47,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:47,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1605526485, now seen corresponding path program 1 times [2022-10-16 02:29:47,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:47,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632399093] [2022-10-16 02:29:47,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:47,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:29:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:29:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 02:29:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-16 02:29:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-16 02:29:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-10-16 02:29:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 02:29:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-10-16 02:29:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-16 02:29:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,458 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-10-16 02:29:48,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:48,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632399093] [2022-10-16 02:29:48,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632399093] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:29:48,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363446472] [2022-10-16 02:29:48,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:48,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:29:48,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:29:48,464 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) [2022-10-16 02:29:48,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 02:29:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:48,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:29:48,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:29:49,174 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 31 proven. 60 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 02:29:49,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:29:49,454 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 15 proven. 33 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-16 02:29:49,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363446472] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:29:49,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:29:49,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 19 [2022-10-16 02:29:49,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981176948] [2022-10-16 02:29:49,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:29:49,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 02:29:49,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:49,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 02:29:49,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-10-16 02:29:49,458 INFO L87 Difference]: Start difference. First operand 2901 states and 3808 transitions. Second operand has 19 states, 19 states have (on average 14.421052631578947) internal successors, (274), 18 states have internal predecessors, (274), 7 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (39), 8 states have call predecessors, (39), 7 states have call successors, (39) [2022-10-16 02:29:58,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:58,480 INFO L93 Difference]: Finished difference Result 7856 states and 10836 transitions. [2022-10-16 02:29:58,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-10-16 02:29:58,481 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 14.421052631578947) internal successors, (274), 18 states have internal predecessors, (274), 7 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (39), 8 states have call predecessors, (39), 7 states have call successors, (39) Word has length 185 [2022-10-16 02:29:58,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:58,511 INFO L225 Difference]: With dead ends: 7856 [2022-10-16 02:29:58,512 INFO L226 Difference]: Without dead ends: 7856 [2022-10-16 02:29:58,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 420 SyntacticMatches, 1 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4892 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2387, Invalid=10953, Unknown=0, NotChecked=0, Total=13340 [2022-10-16 02:29:58,519 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 6511 mSDsluCounter, 5573 mSDsCounter, 0 mSdLazyCounter, 4727 mSolverCounterSat, 2871 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6511 SdHoareTripleChecker+Valid, 6210 SdHoareTripleChecker+Invalid, 7598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2871 IncrementalHoareTripleChecker+Valid, 4727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:58,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6511 Valid, 6210 Invalid, 7598 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2871 Valid, 4727 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-10-16 02:29:58,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7856 states. [2022-10-16 02:29:58,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7856 to 4372. [2022-10-16 02:29:58,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4372 states, 3338 states have (on average 1.3118633912522468) internal successors, (4379), 3363 states have internal predecessors, (4379), 666 states have call successors, (666), 367 states have call predecessors, (666), 367 states have return successors, (666), 641 states have call predecessors, (666), 666 states have call successors, (666) [2022-10-16 02:29:58,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4372 states to 4372 states and 5711 transitions. [2022-10-16 02:29:58,747 INFO L78 Accepts]: Start accepts. Automaton has 4372 states and 5711 transitions. Word has length 185 [2022-10-16 02:29:58,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:58,748 INFO L495 AbstractCegarLoop]: Abstraction has 4372 states and 5711 transitions. [2022-10-16 02:29:58,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.421052631578947) internal successors, (274), 18 states have internal predecessors, (274), 7 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (39), 8 states have call predecessors, (39), 7 states have call successors, (39) [2022-10-16 02:29:58,748 INFO L276 IsEmpty]: Start isEmpty. Operand 4372 states and 5711 transitions. [2022-10-16 02:29:58,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-10-16 02:29:58,758 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:58,759 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:58,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 02:29:58,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 02:29:58,972 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:58,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:58,974 INFO L85 PathProgramCache]: Analyzing trace with hash -983604527, now seen corresponding path program 1 times [2022-10-16 02:29:58,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:58,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52726302] [2022-10-16 02:29:58,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:58,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:29:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 02:29:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-16 02:29:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-16 02:29:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-10-16 02:29:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 02:29:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-10-16 02:29:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-16 02:29:59,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,529 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 15 proven. 22 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-10-16 02:29:59,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:59,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52726302] [2022-10-16 02:29:59,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52726302] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:29:59,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823161847] [2022-10-16 02:29:59,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:59,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:29:59,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:29:59,532 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) [2022-10-16 02:29:59,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 02:29:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 02:29:59,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:29:59,943 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 70 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 02:29:59,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:00,126 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-10-16 02:30:00,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823161847] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:00,126 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:00,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2022-10-16 02:30:00,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759171682] [2022-10-16 02:30:00,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:00,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 02:30:00,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:00,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 02:30:00,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-10-16 02:30:00,131 INFO L87 Difference]: Start difference. First operand 4372 states and 5711 transitions. Second operand has 14 states, 14 states have (on average 18.785714285714285) internal successors, (263), 13 states have internal predecessors, (263), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2022-10-16 02:30:03,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:03,281 INFO L93 Difference]: Finished difference Result 7426 states and 10292 transitions. [2022-10-16 02:30:03,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-10-16 02:30:03,282 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.785714285714285) internal successors, (263), 13 states have internal predecessors, (263), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) Word has length 185 [2022-10-16 02:30:03,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:03,311 INFO L225 Difference]: With dead ends: 7426 [2022-10-16 02:30:03,312 INFO L226 Difference]: Without dead ends: 7426 [2022-10-16 02:30:03,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 402 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1363 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=749, Invalid=3411, Unknown=0, NotChecked=0, Total=4160 [2022-10-16 02:30:03,314 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 2901 mSDsluCounter, 3514 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 816 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2901 SdHoareTripleChecker+Valid, 3989 SdHoareTripleChecker+Invalid, 2564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 816 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:03,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2901 Valid, 3989 Invalid, 2564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [816 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-16 02:30:03,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7426 states. [2022-10-16 02:30:03,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7426 to 4372. [2022-10-16 02:30:03,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4372 states, 3338 states have (on average 1.3067705212702216) internal successors, (4362), 3363 states have internal predecessors, (4362), 666 states have call successors, (666), 367 states have call predecessors, (666), 367 states have return successors, (666), 641 states have call predecessors, (666), 666 states have call successors, (666) [2022-10-16 02:30:03,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4372 states to 4372 states and 5694 transitions. [2022-10-16 02:30:03,499 INFO L78 Accepts]: Start accepts. Automaton has 4372 states and 5694 transitions. Word has length 185 [2022-10-16 02:30:03,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:03,499 INFO L495 AbstractCegarLoop]: Abstraction has 4372 states and 5694 transitions. [2022-10-16 02:30:03,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.785714285714285) internal successors, (263), 13 states have internal predecessors, (263), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2022-10-16 02:30:03,500 INFO L276 IsEmpty]: Start isEmpty. Operand 4372 states and 5694 transitions. [2022-10-16 02:30:03,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-10-16 02:30:03,509 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:03,510 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:03,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:03,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 02:30:03,723 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:03,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:03,724 INFO L85 PathProgramCache]: Analyzing trace with hash -884497074, now seen corresponding path program 1 times [2022-10-16 02:30:03,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:03,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304280758] [2022-10-16 02:30:03,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:03,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:30:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:30:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:30:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:30:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:30:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 02:30:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 02:30:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 02:30:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-10-16 02:30:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 02:30:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 02:30:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-10-16 02:30:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,227 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-10-16 02:30:04,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:04,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304280758] [2022-10-16 02:30:04,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304280758] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:04,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:04,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:30:04,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291090127] [2022-10-16 02:30:04,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:04,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:30:04,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:04,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:30:04,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:30:04,231 INFO L87 Difference]: Start difference. First operand 4372 states and 5694 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 02:30:04,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:04,619 INFO L93 Difference]: Finished difference Result 10786 states and 14600 transitions. [2022-10-16 02:30:04,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 02:30:04,620 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 194 [2022-10-16 02:30:04,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:04,670 INFO L225 Difference]: With dead ends: 10786 [2022-10-16 02:30:04,670 INFO L226 Difference]: Without dead ends: 10786 [2022-10-16 02:30:04,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-10-16 02:30:04,671 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 808 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 2968 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:04,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 2968 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:30:04,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10786 states. [2022-10-16 02:30:04,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10786 to 6092. [2022-10-16 02:30:04,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6092 states, 4582 states have (on average 1.304452204277608) internal successors, (5977), 4619 states have internal predecessors, (5977), 986 states have call successors, (986), 523 states have call predecessors, (986), 523 states have return successors, (986), 949 states have call predecessors, (986), 986 states have call successors, (986) [2022-10-16 02:30:04,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6092 states to 6092 states and 7949 transitions. [2022-10-16 02:30:04,999 INFO L78 Accepts]: Start accepts. Automaton has 6092 states and 7949 transitions. Word has length 194 [2022-10-16 02:30:05,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:05,000 INFO L495 AbstractCegarLoop]: Abstraction has 6092 states and 7949 transitions. [2022-10-16 02:30:05,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 02:30:05,000 INFO L276 IsEmpty]: Start isEmpty. Operand 6092 states and 7949 transitions. [2022-10-16 02:30:05,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-10-16 02:30:05,016 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:05,016 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:05,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-10-16 02:30:05,017 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:05,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:05,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1797357417, now seen corresponding path program 1 times [2022-10-16 02:30:05,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:05,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385980185] [2022-10-16 02:30:05,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:05,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:30:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:30:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:30:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:30:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:30:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 02:30:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 02:30:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-10-16 02:30:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-16 02:30:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 02:30:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-16 02:30:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-10-16 02:30:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,703 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 02:30:05,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:05,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385980185] [2022-10-16 02:30:05,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385980185] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:05,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230273708] [2022-10-16 02:30:05,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:05,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:05,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:05,706 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) [2022-10-16 02:30:05,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 02:30:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:30:05,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:06,206 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 34 proven. 57 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 02:30:06,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:06,448 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-10-16 02:30:06,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230273708] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:06,449 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:06,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2022-10-16 02:30:06,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816475360] [2022-10-16 02:30:06,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:06,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 02:30:06,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:06,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 02:30:06,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-10-16 02:30:06,452 INFO L87 Difference]: Start difference. First operand 6092 states and 7949 transitions. Second operand has 16 states, 16 states have (on average 18.125) internal successors, (290), 15 states have internal predecessors, (290), 7 states have call successors, (44), 4 states have call predecessors, (44), 6 states have return successors, (43), 8 states have call predecessors, (43), 7 states have call successors, (43) [2022-10-16 02:30:16,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:16,321 INFO L93 Difference]: Finished difference Result 19828 states and 27217 transitions. [2022-10-16 02:30:16,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-10-16 02:30:16,322 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 18.125) internal successors, (290), 15 states have internal predecessors, (290), 7 states have call successors, (44), 4 states have call predecessors, (44), 6 states have return successors, (43), 8 states have call predecessors, (43), 7 states have call successors, (43) Word has length 196 [2022-10-16 02:30:16,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:16,388 INFO L225 Difference]: With dead ends: 19828 [2022-10-16 02:30:16,388 INFO L226 Difference]: Without dead ends: 19828 [2022-10-16 02:30:16,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 473 SyntacticMatches, 1 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8833 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=3372, Invalid=18384, Unknown=0, NotChecked=0, Total=21756 [2022-10-16 02:30:16,397 INFO L413 NwaCegarLoop]: 833 mSDtfsCounter, 8738 mSDsluCounter, 5985 mSDsCounter, 0 mSdLazyCounter, 4964 mSolverCounterSat, 3768 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8738 SdHoareTripleChecker+Valid, 6818 SdHoareTripleChecker+Invalid, 8732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3768 IncrementalHoareTripleChecker+Valid, 4964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:16,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8738 Valid, 6818 Invalid, 8732 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3768 Valid, 4964 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-10-16 02:30:16,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19828 states. [2022-10-16 02:30:16,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19828 to 8800. [2022-10-16 02:30:16,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8800 states, 6592 states have (on average 1.2999089805825244) internal successors, (8569), 6647 states have internal predecessors, (8569), 1438 states have call successors, (1438), 769 states have call predecessors, (1438), 769 states have return successors, (1438), 1383 states have call predecessors, (1438), 1438 states have call successors, (1438) [2022-10-16 02:30:16,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8800 states to 8800 states and 11445 transitions. [2022-10-16 02:30:16,844 INFO L78 Accepts]: Start accepts. Automaton has 8800 states and 11445 transitions. Word has length 196 [2022-10-16 02:30:16,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:16,845 INFO L495 AbstractCegarLoop]: Abstraction has 8800 states and 11445 transitions. [2022-10-16 02:30:16,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 18.125) internal successors, (290), 15 states have internal predecessors, (290), 7 states have call successors, (44), 4 states have call predecessors, (44), 6 states have return successors, (43), 8 states have call predecessors, (43), 7 states have call successors, (43) [2022-10-16 02:30:16,845 INFO L276 IsEmpty]: Start isEmpty. Operand 8800 states and 11445 transitions. [2022-10-16 02:30:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-10-16 02:30:16,865 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:16,866 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:16,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-16 02:30:17,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:17,081 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:17,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:17,082 INFO L85 PathProgramCache]: Analyzing trace with hash -606318726, now seen corresponding path program 1 times [2022-10-16 02:30:17,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:17,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647322078] [2022-10-16 02:30:17,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:17,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 02:30:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-16 02:30:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 02:30:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-16 02:30:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-16 02:30:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 02:30:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-16 02:30:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 02:30:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 02:30:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:17,993 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 02:30:17,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:17,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647322078] [2022-10-16 02:30:17,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647322078] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:17,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043775497] [2022-10-16 02:30:17,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:17,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:17,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:18,000 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) [2022-10-16 02:30:18,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 02:30:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 02:30:18,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:18,333 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 52 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-10-16 02:30:18,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:18,452 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-10-16 02:30:18,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043775497] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:18,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:18,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-10-16 02:30:18,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658965708] [2022-10-16 02:30:18,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:18,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 02:30:18,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:18,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 02:30:18,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-10-16 02:30:18,455 INFO L87 Difference]: Start difference. First operand 8800 states and 11445 transitions. Second operand has 17 states, 17 states have (on average 14.529411764705882) internal successors, (247), 16 states have internal predecessors, (247), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2022-10-16 02:30:23,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:23,495 INFO L93 Difference]: Finished difference Result 17713 states and 24802 transitions. [2022-10-16 02:30:23,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-10-16 02:30:23,496 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 14.529411764705882) internal successors, (247), 16 states have internal predecessors, (247), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) Word has length 197 [2022-10-16 02:30:23,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:23,557 INFO L225 Difference]: With dead ends: 17713 [2022-10-16 02:30:23,557 INFO L226 Difference]: Without dead ends: 17713 [2022-10-16 02:30:23,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1400 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=662, Invalid=4168, Unknown=0, NotChecked=0, Total=4830 [2022-10-16 02:30:23,560 INFO L413 NwaCegarLoop]: 856 mSDtfsCounter, 2184 mSDsluCounter, 8161 mSDsCounter, 0 mSdLazyCounter, 4892 mSolverCounterSat, 951 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 9017 SdHoareTripleChecker+Invalid, 5843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 951 IncrementalHoareTripleChecker+Valid, 4892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:23,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2184 Valid, 9017 Invalid, 5843 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [951 Valid, 4892 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-10-16 02:30:23,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17713 states. [2022-10-16 02:30:24,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17713 to 10196. [2022-10-16 02:30:24,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10196 states, 7614 states have (on average 1.2966903073286051) internal successors, (9873), 7679 states have internal predecessors, (9873), 1676 states have call successors, (1676), 905 states have call predecessors, (1676), 905 states have return successors, (1676), 1611 states have call predecessors, (1676), 1676 states have call successors, (1676) [2022-10-16 02:30:24,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10196 states to 10196 states and 13225 transitions. [2022-10-16 02:30:24,131 INFO L78 Accepts]: Start accepts. Automaton has 10196 states and 13225 transitions. Word has length 197 [2022-10-16 02:30:24,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:24,132 INFO L495 AbstractCegarLoop]: Abstraction has 10196 states and 13225 transitions. [2022-10-16 02:30:24,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 14.529411764705882) internal successors, (247), 16 states have internal predecessors, (247), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2022-10-16 02:30:24,132 INFO L276 IsEmpty]: Start isEmpty. Operand 10196 states and 13225 transitions. [2022-10-16 02:30:24,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-10-16 02:30:24,156 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:24,156 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:24,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:24,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:24,369 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:24,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:24,372 INFO L85 PathProgramCache]: Analyzing trace with hash 478989222, now seen corresponding path program 1 times [2022-10-16 02:30:24,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:24,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220328443] [2022-10-16 02:30:24,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:24,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 02:30:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-16 02:30:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 02:30:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 02:30:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-10-16 02:30:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-16 02:30:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-16 02:30:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 02:30:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 02:30:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-10-16 02:30:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,047 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-10-16 02:30:25,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:25,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220328443] [2022-10-16 02:30:25,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220328443] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:25,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045367027] [2022-10-16 02:30:25,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:25,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:25,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:25,049 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) [2022-10-16 02:30:25,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 02:30:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 02:30:25,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:25,419 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 74 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-10-16 02:30:25,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:25,598 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-10-16 02:30:25,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045367027] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:25,599 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:25,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2022-10-16 02:30:25,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841424446] [2022-10-16 02:30:25,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:25,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 02:30:25,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:25,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 02:30:25,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:30:25,601 INFO L87 Difference]: Start difference. First operand 10196 states and 13225 transitions. Second operand has 9 states, 9 states have (on average 20.0) internal successors, (180), 8 states have internal predecessors, (180), 3 states have call successors, (30), 4 states have call predecessors, (30), 7 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-10-16 02:30:25,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:25,883 INFO L93 Difference]: Finished difference Result 14409 states and 19737 transitions. [2022-10-16 02:30:25,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 02:30:25,884 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.0) internal successors, (180), 8 states have internal predecessors, (180), 3 states have call successors, (30), 4 states have call predecessors, (30), 7 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 205 [2022-10-16 02:30:25,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:25,942 INFO L225 Difference]: With dead ends: 14409 [2022-10-16 02:30:25,943 INFO L226 Difference]: Without dead ends: 14409 [2022-10-16 02:30:25,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 439 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 02:30:25,944 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 284 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 3012 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:25,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 3012 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:30:25,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14409 states. [2022-10-16 02:30:26,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14409 to 10196. [2022-10-16 02:30:26,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10196 states, 7614 states have (on average 1.2957709482532178) internal successors, (9866), 7679 states have internal predecessors, (9866), 1676 states have call successors, (1676), 905 states have call predecessors, (1676), 905 states have return successors, (1676), 1611 states have call predecessors, (1676), 1676 states have call successors, (1676) [2022-10-16 02:30:26,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10196 states to 10196 states and 13218 transitions. [2022-10-16 02:30:26,411 INFO L78 Accepts]: Start accepts. Automaton has 10196 states and 13218 transitions. Word has length 205 [2022-10-16 02:30:26,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:26,411 INFO L495 AbstractCegarLoop]: Abstraction has 10196 states and 13218 transitions. [2022-10-16 02:30:26,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.0) internal successors, (180), 8 states have internal predecessors, (180), 3 states have call successors, (30), 4 states have call predecessors, (30), 7 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-10-16 02:30:26,412 INFO L276 IsEmpty]: Start isEmpty. Operand 10196 states and 13218 transitions. [2022-10-16 02:30:26,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-10-16 02:30:26,434 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:26,434 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:26,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:26,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-10-16 02:30:26,652 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:26,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:26,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1854176513, now seen corresponding path program 1 times [2022-10-16 02:30:26,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:26,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913658406] [2022-10-16 02:30:26,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:26,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:30:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:30:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:30:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-16 02:30:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-16 02:30:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-16 02:30:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-10-16 02:30:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-10-16 02:30:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-10-16 02:30:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,121 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-10-16 02:30:27,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:27,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913658406] [2022-10-16 02:30:27,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913658406] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:27,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:27,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:30:27,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482610325] [2022-10-16 02:30:27,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:27,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:27,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:27,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:27,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:27,125 INFO L87 Difference]: Start difference. First operand 10196 states and 13218 transitions. Second operand has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-10-16 02:30:27,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:27,188 INFO L93 Difference]: Finished difference Result 6731 states and 8707 transitions. [2022-10-16 02:30:27,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:27,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 212 [2022-10-16 02:30:27,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:27,216 INFO L225 Difference]: With dead ends: 6731 [2022-10-16 02:30:27,216 INFO L226 Difference]: Without dead ends: 6606 [2022-10-16 02:30:27,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:30:27,218 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 2 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:27,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1120 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:27,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6606 states. [2022-10-16 02:30:27,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6606 to 6606. [2022-10-16 02:30:27,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6606 states, 4948 states have (on average 1.2954729183508489) internal successors, (6410), 4989 states have internal predecessors, (6410), 1080 states have call successors, (1080), 577 states have call predecessors, (1080), 577 states have return successors, (1080), 1039 states have call predecessors, (1080), 1080 states have call successors, (1080) [2022-10-16 02:30:27,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6606 states to 6606 states and 8570 transitions. [2022-10-16 02:30:27,483 INFO L78 Accepts]: Start accepts. Automaton has 6606 states and 8570 transitions. Word has length 212 [2022-10-16 02:30:27,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:27,484 INFO L495 AbstractCegarLoop]: Abstraction has 6606 states and 8570 transitions. [2022-10-16 02:30:27,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-10-16 02:30:27,484 INFO L276 IsEmpty]: Start isEmpty. Operand 6606 states and 8570 transitions. [2022-10-16 02:30:27,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-10-16 02:30:27,500 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:27,501 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:27,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-10-16 02:30:27,502 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:27,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:27,503 INFO L85 PathProgramCache]: Analyzing trace with hash -401917055, now seen corresponding path program 1 times [2022-10-16 02:30:27,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:27,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518564558] [2022-10-16 02:30:27,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:27,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:30:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:30:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:30:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 02:30:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-16 02:30:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-16 02:30:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-10-16 02:30:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-10-16 02:30:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-10-16 02:30:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,859 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-10-16 02:30:27,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:27,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518564558] [2022-10-16 02:30:27,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518564558] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:27,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:27,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:30:27,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171372184] [2022-10-16 02:30:27,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:27,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:27,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:27,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:27,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:27,863 INFO L87 Difference]: Start difference. First operand 6606 states and 8570 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 02:30:28,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:28,052 INFO L93 Difference]: Finished difference Result 6242 states and 8106 transitions. [2022-10-16 02:30:28,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:28,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 212 [2022-10-16 02:30:28,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:28,076 INFO L225 Difference]: With dead ends: 6242 [2022-10-16 02:30:28,077 INFO L226 Difference]: Without dead ends: 6242 [2022-10-16 02:30:28,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:28,078 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 275 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:28,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 461 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:28,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6242 states. [2022-10-16 02:30:28,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6242 to 6242. [2022-10-16 02:30:28,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6242 states, 4678 states have (on average 1.2967079948696023) internal successors, (6066), 4717 states have internal predecessors, (6066), 1020 states have call successors, (1020), 543 states have call predecessors, (1020), 543 states have return successors, (1020), 981 states have call predecessors, (1020), 1020 states have call successors, (1020) [2022-10-16 02:30:28,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6242 states to 6242 states and 8106 transitions. [2022-10-16 02:30:28,273 INFO L78 Accepts]: Start accepts. Automaton has 6242 states and 8106 transitions. Word has length 212 [2022-10-16 02:30:28,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:28,273 INFO L495 AbstractCegarLoop]: Abstraction has 6242 states and 8106 transitions. [2022-10-16 02:30:28,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 02:30:28,274 INFO L276 IsEmpty]: Start isEmpty. Operand 6242 states and 8106 transitions. [2022-10-16 02:30:28,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-10-16 02:30:28,288 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:28,288 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:28,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-10-16 02:30:28,289 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:28,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash 2057739572, now seen corresponding path program 1 times [2022-10-16 02:30:28,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:28,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918584673] [2022-10-16 02:30:28,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:28,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:30:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:30:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:30:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:30:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:30:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 02:30:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-16 02:30:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 02:30:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-16 02:30:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 02:30:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-16 02:30:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-10-16 02:30:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-16 02:30:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 02:30:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-10-16 02:30:28,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:28,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918584673] [2022-10-16 02:30:28,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918584673] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:28,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:28,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:30:28,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586672475] [2022-10-16 02:30:28,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:28,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:28,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:28,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:28,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:28,607 INFO L87 Difference]: Start difference. First operand 6242 states and 8106 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 02:30:28,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:28,769 INFO L93 Difference]: Finished difference Result 5930 states and 7708 transitions. [2022-10-16 02:30:28,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:28,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 214 [2022-10-16 02:30:28,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:28,789 INFO L225 Difference]: With dead ends: 5930 [2022-10-16 02:30:28,789 INFO L226 Difference]: Without dead ends: 5930 [2022-10-16 02:30:28,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:28,791 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 277 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:28,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 428 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:28,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5930 states. [2022-10-16 02:30:28,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5930 to 5772. [2022-10-16 02:30:28,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5772 states, 4324 states have (on average 1.299722479185939) internal successors, (5620), 4360 states have internal predecessors, (5620), 943 states have call successors, (943), 504 states have call predecessors, (943), 504 states have return successors, (943), 907 states have call predecessors, (943), 943 states have call successors, (943) [2022-10-16 02:30:28,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5772 states to 5772 states and 7506 transitions. [2022-10-16 02:30:28,950 INFO L78 Accepts]: Start accepts. Automaton has 5772 states and 7506 transitions. Word has length 214 [2022-10-16 02:30:28,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:28,951 INFO L495 AbstractCegarLoop]: Abstraction has 5772 states and 7506 transitions. [2022-10-16 02:30:28,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 02:30:28,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5772 states and 7506 transitions. [2022-10-16 02:30:28,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-10-16 02:30:28,964 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:28,964 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:28,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-10-16 02:30:28,964 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:28,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:28,965 INFO L85 PathProgramCache]: Analyzing trace with hash 73241373, now seen corresponding path program 1 times [2022-10-16 02:30:28,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:28,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521496226] [2022-10-16 02:30:28,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:28,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:30:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:30:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:30:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 02:30:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-16 02:30:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 02:30:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 02:30:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-10-16 02:30:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,755 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 29 proven. 19 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-16 02:30:29,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:29,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521496226] [2022-10-16 02:30:29,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521496226] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:29,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942690641] [2022-10-16 02:30:29,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:29,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:29,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:29,758 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) [2022-10-16 02:30:29,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 02:30:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:29,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 02:30:29,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:30,678 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 82 proven. 27 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 02:30:30,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:31,083 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 29 proven. 19 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-16 02:30:31,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942690641] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:31,083 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:31,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 11] total 25 [2022-10-16 02:30:31,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96068618] [2022-10-16 02:30:31,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:31,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 02:30:31,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:31,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 02:30:31,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2022-10-16 02:30:31,092 INFO L87 Difference]: Start difference. First operand 5772 states and 7506 transitions. Second operand has 25 states, 25 states have (on average 12.96) internal successors, (324), 25 states have internal predecessors, (324), 9 states have call successors, (46), 5 states have call predecessors, (46), 5 states have return successors, (45), 9 states have call predecessors, (45), 9 states have call successors, (45) [2022-10-16 02:30:36,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:36,745 INFO L93 Difference]: Finished difference Result 9908 states and 13555 transitions. [2022-10-16 02:30:36,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-16 02:30:36,747 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 12.96) internal successors, (324), 25 states have internal predecessors, (324), 9 states have call successors, (46), 5 states have call predecessors, (46), 5 states have return successors, (45), 9 states have call predecessors, (45), 9 states have call successors, (45) Word has length 213 [2022-10-16 02:30:36,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:36,780 INFO L225 Difference]: With dead ends: 9908 [2022-10-16 02:30:36,780 INFO L226 Difference]: Without dead ends: 9908 [2022-10-16 02:30:36,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 445 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1169 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=775, Invalid=3647, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 02:30:36,782 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 3005 mSDsluCounter, 6500 mSDsCounter, 0 mSdLazyCounter, 5086 mSolverCounterSat, 1319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3005 SdHoareTripleChecker+Valid, 7135 SdHoareTripleChecker+Invalid, 6405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1319 IncrementalHoareTripleChecker+Valid, 5086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:36,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3005 Valid, 7135 Invalid, 6405 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1319 Valid, 5086 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-10-16 02:30:36,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9908 states. [2022-10-16 02:30:36,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9908 to 6946. [2022-10-16 02:30:37,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6946 states, 5206 states have (on average 1.2971571263926238) internal successors, (6753), 5250 states have internal predecessors, (6753), 1128 states have call successors, (1128), 611 states have call predecessors, (1128), 611 states have return successors, (1128), 1084 states have call predecessors, (1128), 1128 states have call successors, (1128) [2022-10-16 02:30:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6946 states to 6946 states and 9009 transitions. [2022-10-16 02:30:37,022 INFO L78 Accepts]: Start accepts. Automaton has 6946 states and 9009 transitions. Word has length 213 [2022-10-16 02:30:37,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:37,023 INFO L495 AbstractCegarLoop]: Abstraction has 6946 states and 9009 transitions. [2022-10-16 02:30:37,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 12.96) internal successors, (324), 25 states have internal predecessors, (324), 9 states have call successors, (46), 5 states have call predecessors, (46), 5 states have return successors, (45), 9 states have call predecessors, (45), 9 states have call successors, (45) [2022-10-16 02:30:37,023 INFO L276 IsEmpty]: Start isEmpty. Operand 6946 states and 9009 transitions. [2022-10-16 02:30:37,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-10-16 02:30:37,041 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:37,042 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:37,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:37,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 02:30:37,258 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:37,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:37,259 INFO L85 PathProgramCache]: Analyzing trace with hash 721834143, now seen corresponding path program 1 times [2022-10-16 02:30:37,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:37,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518032136] [2022-10-16 02:30:37,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:37,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:30:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:30:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:30:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 02:30:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-16 02:30:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 02:30:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 02:30:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-10-16 02:30:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:30:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:37,464 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-10-16 02:30:37,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:37,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518032136] [2022-10-16 02:30:37,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518032136] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:37,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:37,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:37,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266026581] [2022-10-16 02:30:37,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:37,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:37,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:37,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:37,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:37,468 INFO L87 Difference]: Start difference. First operand 6946 states and 9009 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 02:30:37,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:37,602 INFO L93 Difference]: Finished difference Result 6379 states and 8277 transitions. [2022-10-16 02:30:37,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:30:37,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 213 [2022-10-16 02:30:37,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:37,621 INFO L225 Difference]: With dead ends: 6379 [2022-10-16 02:30:37,621 INFO L226 Difference]: Without dead ends: 6379 [2022-10-16 02:30:37,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:37,622 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 225 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:37,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 440 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:37,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6379 states. [2022-10-16 02:30:37,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6379 to 6371. [2022-10-16 02:30:37,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6371 states, 4785 states have (on average 1.2971786833855798) internal successors, (6207), 4825 states have internal predecessors, (6207), 1031 states have call successors, (1031), 554 states have call predecessors, (1031), 554 states have return successors, (1031), 991 states have call predecessors, (1031), 1031 states have call successors, (1031) [2022-10-16 02:30:37,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6371 states to 6371 states and 8269 transitions. [2022-10-16 02:30:37,797 INFO L78 Accepts]: Start accepts. Automaton has 6371 states and 8269 transitions. Word has length 213 [2022-10-16 02:30:37,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:37,798 INFO L495 AbstractCegarLoop]: Abstraction has 6371 states and 8269 transitions. [2022-10-16 02:30:37,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 02:30:37,798 INFO L276 IsEmpty]: Start isEmpty. Operand 6371 states and 8269 transitions. [2022-10-16 02:30:37,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-10-16 02:30:37,805 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:37,805 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:37,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-10-16 02:30:37,806 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:37,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:37,806 INFO L85 PathProgramCache]: Analyzing trace with hash -718626286, now seen corresponding path program 1 times [2022-10-16 02:30:37,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:37,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646250209] [2022-10-16 02:30:37,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:37,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 02:30:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:30:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:30:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:30:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 02:30:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 02:30:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-16 02:30:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-10-16 02:30:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-10-16 02:30:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,118 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 14 proven. 40 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-10-16 02:30:38,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:38,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646250209] [2022-10-16 02:30:38,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646250209] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:38,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677946627] [2022-10-16 02:30:38,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:38,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:38,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:38,121 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) [2022-10-16 02:30:38,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 02:30:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:38,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 02:30:38,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:38,554 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 8 proven. 117 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-16 02:30:38,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:38,763 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 14 proven. 40 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-10-16 02:30:38,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677946627] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:38,764 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:38,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 10 [2022-10-16 02:30:38,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912003654] [2022-10-16 02:30:38,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:38,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:30:38,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:38,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:30:38,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:30:38,766 INFO L87 Difference]: Start difference. First operand 6371 states and 8269 transitions. Second operand has 10 states, 10 states have (on average 19.2) internal successors, (192), 9 states have internal predecessors, (192), 4 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (35), 4 states have call predecessors, (35), 3 states have call successors, (35) [2022-10-16 02:30:39,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:39,028 INFO L93 Difference]: Finished difference Result 11957 states and 15434 transitions. [2022-10-16 02:30:39,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 02:30:39,029 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 19.2) internal successors, (192), 9 states have internal predecessors, (192), 4 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (35), 4 states have call predecessors, (35), 3 states have call successors, (35) Word has length 215 [2022-10-16 02:30:39,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:39,061 INFO L225 Difference]: With dead ends: 11957 [2022-10-16 02:30:39,061 INFO L226 Difference]: Without dead ends: 11957 [2022-10-16 02:30:39,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 459 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-10-16 02:30:39,062 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 743 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:39,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 2555 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:39,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11957 states. [2022-10-16 02:30:39,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11957 to 9094. [2022-10-16 02:30:39,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9094 states, 6883 states have (on average 1.2818538428011041) internal successors, (8823), 6951 states have internal predecessors, (8823), 1421 states have call successors, (1421), 789 states have call predecessors, (1421), 789 states have return successors, (1421), 1353 states have call predecessors, (1421), 1421 states have call successors, (1421) [2022-10-16 02:30:39,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9094 states to 9094 states and 11665 transitions. [2022-10-16 02:30:39,375 INFO L78 Accepts]: Start accepts. Automaton has 9094 states and 11665 transitions. Word has length 215 [2022-10-16 02:30:39,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:39,376 INFO L495 AbstractCegarLoop]: Abstraction has 9094 states and 11665 transitions. [2022-10-16 02:30:39,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.2) internal successors, (192), 9 states have internal predecessors, (192), 4 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (35), 4 states have call predecessors, (35), 3 states have call successors, (35) [2022-10-16 02:30:39,376 INFO L276 IsEmpty]: Start isEmpty. Operand 9094 states and 11665 transitions. [2022-10-16 02:30:39,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-10-16 02:30:39,382 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:39,382 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:39,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:39,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:39,596 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:39,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:39,596 INFO L85 PathProgramCache]: Analyzing trace with hash -63895778, now seen corresponding path program 1 times [2022-10-16 02:30:39,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:39,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31918584] [2022-10-16 02:30:39,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:39,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:30:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:30:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:30:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 02:30:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-16 02:30:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 02:30:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 02:30:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:30:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-10-16 02:30:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,539 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-16 02:30:40,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:40,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31918584] [2022-10-16 02:30:40,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31918584] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:40,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109614633] [2022-10-16 02:30:40,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:40,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:40,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:40,543 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) [2022-10-16 02:30:40,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 02:30:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:40,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 02:30:40,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 02:30:41,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-16 02:30:42,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109614633] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:42,748 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:42,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 10] total 22 [2022-10-16 02:30:42,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831683408] [2022-10-16 02:30:42,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:42,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 02:30:42,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:42,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 02:30:42,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2022-10-16 02:30:42,751 INFO L87 Difference]: Start difference. First operand 9094 states and 11665 transitions. Second operand has 22 states, 22 states have (on average 16.818181818181817) internal successors, (370), 22 states have internal predecessors, (370), 10 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) [2022-10-16 02:30:46,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:46,642 INFO L93 Difference]: Finished difference Result 14718 states and 20020 transitions. [2022-10-16 02:30:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 02:30:46,643 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 16.818181818181817) internal successors, (370), 22 states have internal predecessors, (370), 10 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) Word has length 214 [2022-10-16 02:30:46,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:46,687 INFO L225 Difference]: With dead ends: 14718 [2022-10-16 02:30:46,687 INFO L226 Difference]: Without dead ends: 14718 [2022-10-16 02:30:46,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 450 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=643, Invalid=1907, Unknown=0, NotChecked=0, Total=2550 [2022-10-16 02:30:46,689 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 3111 mSDsluCounter, 3513 mSDsCounter, 0 mSdLazyCounter, 3306 mSolverCounterSat, 817 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3111 SdHoareTripleChecker+Valid, 3966 SdHoareTripleChecker+Invalid, 4123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 817 IncrementalHoareTripleChecker+Valid, 3306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:46,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3111 Valid, 3966 Invalid, 4123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [817 Valid, 3306 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-10-16 02:30:46,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14718 states. [2022-10-16 02:30:47,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14718 to 9094. [2022-10-16 02:30:47,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9094 states, 6883 states have (on average 1.2789481330815051) internal successors, (8803), 6951 states have internal predecessors, (8803), 1421 states have call successors, (1421), 789 states have call predecessors, (1421), 789 states have return successors, (1421), 1353 states have call predecessors, (1421), 1421 states have call successors, (1421) [2022-10-16 02:30:47,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9094 states to 9094 states and 11645 transitions. [2022-10-16 02:30:47,056 INFO L78 Accepts]: Start accepts. Automaton has 9094 states and 11645 transitions. Word has length 214 [2022-10-16 02:30:47,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:47,057 INFO L495 AbstractCegarLoop]: Abstraction has 9094 states and 11645 transitions. [2022-10-16 02:30:47,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 16.818181818181817) internal successors, (370), 22 states have internal predecessors, (370), 10 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) [2022-10-16 02:30:47,057 INFO L276 IsEmpty]: Start isEmpty. Operand 9094 states and 11645 transitions. [2022-10-16 02:30:47,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-10-16 02:30:47,064 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:47,064 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:47,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:47,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-10-16 02:30:47,281 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:47,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:47,282 INFO L85 PathProgramCache]: Analyzing trace with hash 480813681, now seen corresponding path program 1 times [2022-10-16 02:30:47,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:47,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234958935] [2022-10-16 02:30:47,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:47,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:30:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:30:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:30:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 02:30:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 02:30:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-16 02:30:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-16 02:30:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 02:30:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-10-16 02:30:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:47,827 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-16 02:30:47,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:47,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234958935] [2022-10-16 02:30:47,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234958935] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:47,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972708715] [2022-10-16 02:30:47,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:47,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:47,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:47,829 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) [2022-10-16 02:30:47,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 02:30:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:48,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 02:30:48,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:48,186 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 80 proven. 16 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 02:30:48,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:48,528 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-16 02:30:48,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972708715] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:48,528 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:48,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 14 [2022-10-16 02:30:48,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232459608] [2022-10-16 02:30:48,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:48,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 02:30:48,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:48,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 02:30:48,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-10-16 02:30:48,531 INFO L87 Difference]: Start difference. First operand 9094 states and 11645 transitions. Second operand has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 6 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) [2022-10-16 02:30:51,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:51,473 INFO L93 Difference]: Finished difference Result 32125 states and 44168 transitions. [2022-10-16 02:30:51,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-10-16 02:30:51,473 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 6 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) Word has length 215 [2022-10-16 02:30:51,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:51,562 INFO L225 Difference]: With dead ends: 32125 [2022-10-16 02:30:51,562 INFO L226 Difference]: Without dead ends: 32125 [2022-10-16 02:30:51,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2014 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=952, Invalid=5054, Unknown=0, NotChecked=0, Total=6006 [2022-10-16 02:30:51,567 INFO L413 NwaCegarLoop]: 1274 mSDtfsCounter, 2080 mSDsluCounter, 8316 mSDsCounter, 0 mSdLazyCounter, 1793 mSolverCounterSat, 677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2174 SdHoareTripleChecker+Valid, 9590 SdHoareTripleChecker+Invalid, 2470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 677 IncrementalHoareTripleChecker+Valid, 1793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:51,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2174 Valid, 9590 Invalid, 2470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [677 Valid, 1793 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 02:30:51,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32125 states. [2022-10-16 02:30:52,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32125 to 18129. [2022-10-16 02:30:52,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18129 states, 13989 states have (on average 1.2802916577310743) internal successors, (17910), 14108 states have internal predecessors, (17910), 2627 states have call successors, (2627), 1512 states have call predecessors, (2627), 1512 states have return successors, (2627), 2508 states have call predecessors, (2627), 2627 states have call successors, (2627) [2022-10-16 02:30:52,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18129 states to 18129 states and 23164 transitions. [2022-10-16 02:30:52,409 INFO L78 Accepts]: Start accepts. Automaton has 18129 states and 23164 transitions. Word has length 215 [2022-10-16 02:30:52,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:52,410 INFO L495 AbstractCegarLoop]: Abstraction has 18129 states and 23164 transitions. [2022-10-16 02:30:52,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 6 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) [2022-10-16 02:30:52,410 INFO L276 IsEmpty]: Start isEmpty. Operand 18129 states and 23164 transitions. [2022-10-16 02:30:52,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-10-16 02:30:52,421 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:52,421 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:52,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:52,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:52,637 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:52,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:52,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1129406451, now seen corresponding path program 1 times [2022-10-16 02:30:52,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:52,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442339630] [2022-10-16 02:30:52,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:52,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:30:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:30:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:30:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 02:30:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 02:30:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-16 02:30:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-16 02:30:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 02:30:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-10-16 02:30:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:52,921 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-10-16 02:30:52,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:52,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442339630] [2022-10-16 02:30:52,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442339630] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:52,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:52,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:52,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180416884] [2022-10-16 02:30:52,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:52,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:52,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:52,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:52,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:52,923 INFO L87 Difference]: Start difference. First operand 18129 states and 23164 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 02:30:53,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:53,068 INFO L93 Difference]: Finished difference Result 13896 states and 17752 transitions. [2022-10-16 02:30:53,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:30:53,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 215 [2022-10-16 02:30:53,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:53,096 INFO L225 Difference]: With dead ends: 13896 [2022-10-16 02:30:53,096 INFO L226 Difference]: Without dead ends: 13896 [2022-10-16 02:30:53,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:53,097 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 232 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:53,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 437 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:53,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13896 states. [2022-10-16 02:30:53,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13896 to 13853. [2022-10-16 02:30:53,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13853 states, 10770 states have (on average 1.280594243268338) internal successors, (13792), 10855 states have internal predecessors, (13792), 1958 states have call successors, (1958), 1124 states have call predecessors, (1958), 1124 states have return successors, (1958), 1873 states have call predecessors, (1958), 1958 states have call successors, (1958) [2022-10-16 02:30:53,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13853 states to 13853 states and 17708 transitions. [2022-10-16 02:30:53,388 INFO L78 Accepts]: Start accepts. Automaton has 13853 states and 17708 transitions. Word has length 215 [2022-10-16 02:30:53,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:53,389 INFO L495 AbstractCegarLoop]: Abstraction has 13853 states and 17708 transitions. [2022-10-16 02:30:53,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 02:30:53,389 INFO L276 IsEmpty]: Start isEmpty. Operand 13853 states and 17708 transitions. [2022-10-16 02:30:53,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-10-16 02:30:53,396 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:53,396 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:53,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-10-16 02:30:53,397 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:53,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:53,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1205176304, now seen corresponding path program 1 times [2022-10-16 02:30:53,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:53,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304341270] [2022-10-16 02:30:53,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:53,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 02:30:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:30:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:30:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:30:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 02:30:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 02:30:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-16 02:30:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-10-16 02:30:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-10-16 02:30:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-10-16 02:30:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,698 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-10-16 02:30:53,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:53,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304341270] [2022-10-16 02:30:53,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304341270] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:53,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:53,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:30:53,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823516803] [2022-10-16 02:30:53,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:53,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:30:53,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:53,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:30:53,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:30:53,700 INFO L87 Difference]: Start difference. First operand 13853 states and 17708 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-16 02:30:54,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:54,021 INFO L93 Difference]: Finished difference Result 26489 states and 34622 transitions. [2022-10-16 02:30:54,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 02:30:54,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 217 [2022-10-16 02:30:54,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:54,086 INFO L225 Difference]: With dead ends: 26489 [2022-10-16 02:30:54,086 INFO L226 Difference]: Without dead ends: 26489 [2022-10-16 02:30:54,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-10-16 02:30:54,095 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 602 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 2892 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:54,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 2892 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:30:54,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26489 states. [2022-10-16 02:30:54,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26489 to 17226. [2022-10-16 02:30:54,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17226 states, 13217 states have (on average 1.2718468638874176) internal successors, (16810), 13336 states have internal predecessors, (16810), 2546 states have call successors, (2546), 1462 states have call predecessors, (2546), 1462 states have return successors, (2546), 2427 states have call predecessors, (2546), 2546 states have call successors, (2546) [2022-10-16 02:30:54,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17226 states to 17226 states and 21902 transitions. [2022-10-16 02:30:54,741 INFO L78 Accepts]: Start accepts. Automaton has 17226 states and 21902 transitions. Word has length 217 [2022-10-16 02:30:54,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:54,742 INFO L495 AbstractCegarLoop]: Abstraction has 17226 states and 21902 transitions. [2022-10-16 02:30:54,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-16 02:30:54,742 INFO L276 IsEmpty]: Start isEmpty. Operand 17226 states and 21902 transitions. [2022-10-16 02:30:54,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-10-16 02:30:54,752 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:54,752 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:54,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-10-16 02:30:54,752 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:54,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:54,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1526789791, now seen corresponding path program 1 times [2022-10-16 02:30:54,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:54,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591586047] [2022-10-16 02:30:54,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:54,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:30:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:30:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:30:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:30:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:30:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 02:30:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-16 02:30:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 02:30:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-16 02:30:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-16 02:30:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 02:30:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-10-16 02:30:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-16 02:30:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 02:30:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 02:30:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,477 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 26 proven. 12 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-10-16 02:30:55,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:55,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591586047] [2022-10-16 02:30:55,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591586047] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:55,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645114503] [2022-10-16 02:30:55,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:55,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:55,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:55,479 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) [2022-10-16 02:30:55,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 02:30:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:55,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 02:30:55,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:55,838 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-10-16 02:30:55,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:55,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645114503] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:55,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:55,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-10-16 02:30:55,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694851384] [2022-10-16 02:30:55,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:55,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:30:55,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:55,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:30:55,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-10-16 02:30:55,841 INFO L87 Difference]: Start difference. First operand 17226 states and 21902 transitions. Second operand has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 6 states have internal predecessors, (152), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-10-16 02:30:56,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:56,279 INFO L93 Difference]: Finished difference Result 21174 states and 27907 transitions. [2022-10-16 02:30:56,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 02:30:56,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 6 states have internal predecessors, (152), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 218 [2022-10-16 02:30:56,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:56,435 INFO L225 Difference]: With dead ends: 21174 [2022-10-16 02:30:56,435 INFO L226 Difference]: Without dead ends: 21174 [2022-10-16 02:30:56,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-10-16 02:30:56,436 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 689 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:56,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 2083 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:30:56,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21174 states. [2022-10-16 02:30:56,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21174 to 17226. [2022-10-16 02:30:56,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17226 states, 13217 states have (on average 1.2655670727093895) internal successors, (16727), 13336 states have internal predecessors, (16727), 2546 states have call successors, (2546), 1462 states have call predecessors, (2546), 1462 states have return successors, (2546), 2427 states have call predecessors, (2546), 2546 states have call successors, (2546) [2022-10-16 02:30:56,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17226 states to 17226 states and 21819 transitions. [2022-10-16 02:30:56,862 INFO L78 Accepts]: Start accepts. Automaton has 17226 states and 21819 transitions. Word has length 218 [2022-10-16 02:30:56,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:56,863 INFO L495 AbstractCegarLoop]: Abstraction has 17226 states and 21819 transitions. [2022-10-16 02:30:56,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 6 states have internal predecessors, (152), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-10-16 02:30:56,863 INFO L276 IsEmpty]: Start isEmpty. Operand 17226 states and 21819 transitions. [2022-10-16 02:30:56,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-10-16 02:30:56,872 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:56,873 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:56,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:57,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-10-16 02:30:57,088 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:57,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:57,089 INFO L85 PathProgramCache]: Analyzing trace with hash 951450201, now seen corresponding path program 1 times [2022-10-16 02:30:57,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:57,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166492442] [2022-10-16 02:30:57,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:57,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:30:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:30:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:30:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 02:30:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 02:30:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-16 02:30:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-16 02:30:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 02:30:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-10-16 02:30:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 02:30:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,663 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 25 proven. 26 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-10-16 02:30:57,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:57,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166492442] [2022-10-16 02:30:57,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166492442] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:57,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377146288] [2022-10-16 02:30:57,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:57,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:57,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:57,665 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) [2022-10-16 02:30:57,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 02:30:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:57,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:30:57,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:58,193 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 66 proven. 60 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 02:30:58,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:58,594 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 25 proven. 26 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-10-16 02:30:58,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377146288] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:58,594 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:58,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 12 [2022-10-16 02:30:58,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755101728] [2022-10-16 02:30:58,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:58,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 02:30:58,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:58,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 02:30:58,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-10-16 02:30:58,597 INFO L87 Difference]: Start difference. First operand 17226 states and 21819 transitions. Second operand has 12 states, 12 states have (on average 19.25) internal successors, (231), 11 states have internal predecessors, (231), 5 states have call successors, (37), 4 states have call predecessors, (37), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2022-10-16 02:30:59,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:59,663 INFO L93 Difference]: Finished difference Result 20283 states and 25743 transitions. [2022-10-16 02:30:59,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 02:30:59,664 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.25) internal successors, (231), 11 states have internal predecessors, (231), 5 states have call successors, (37), 4 states have call predecessors, (37), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) Word has length 223 [2022-10-16 02:30:59,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:59,711 INFO L225 Difference]: With dead ends: 20283 [2022-10-16 02:30:59,711 INFO L226 Difference]: Without dead ends: 20283 [2022-10-16 02:30:59,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 479 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2022-10-16 02:30:59,712 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 1061 mSDsluCounter, 4358 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:59,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 5234 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 02:30:59,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20283 states. [2022-10-16 02:31:00,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20283 to 17226. [2022-10-16 02:31:00,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17226 states, 13217 states have (on average 1.2617840659756374) internal successors, (16677), 13336 states have internal predecessors, (16677), 2546 states have call successors, (2546), 1462 states have call predecessors, (2546), 1462 states have return successors, (2546), 2427 states have call predecessors, (2546), 2546 states have call successors, (2546) [2022-10-16 02:31:00,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17226 states to 17226 states and 21769 transitions. [2022-10-16 02:31:00,105 INFO L78 Accepts]: Start accepts. Automaton has 17226 states and 21769 transitions. Word has length 223 [2022-10-16 02:31:00,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:00,106 INFO L495 AbstractCegarLoop]: Abstraction has 17226 states and 21769 transitions. [2022-10-16 02:31:00,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.25) internal successors, (231), 11 states have internal predecessors, (231), 5 states have call successors, (37), 4 states have call predecessors, (37), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2022-10-16 02:31:00,107 INFO L276 IsEmpty]: Start isEmpty. Operand 17226 states and 21769 transitions. [2022-10-16 02:31:00,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-10-16 02:31:00,120 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:00,120 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:00,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-16 02:31:00,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-10-16 02:31:00,334 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:00,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:00,335 INFO L85 PathProgramCache]: Analyzing trace with hash 803323025, now seen corresponding path program 1 times [2022-10-16 02:31:00,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:00,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166178076] [2022-10-16 02:31:00,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:00,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:31:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:31:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 02:31:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 02:31:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-16 02:31:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-16 02:31:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 02:31:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-10-16 02:31:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:31:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:00,898 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-10-16 02:31:00,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:00,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166178076] [2022-10-16 02:31:00,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166178076] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:31:00,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:31:00,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:31:00,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139483318] [2022-10-16 02:31:00,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:31:00,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:31:00,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:00,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:31:00,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:31:00,902 INFO L87 Difference]: Start difference. First operand 17226 states and 21769 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 02:31:01,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:01,400 INFO L93 Difference]: Finished difference Result 21333 states and 27714 transitions. [2022-10-16 02:31:01,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 02:31:01,401 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 223 [2022-10-16 02:31:01,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:01,449 INFO L225 Difference]: With dead ends: 21333 [2022-10-16 02:31:01,449 INFO L226 Difference]: Without dead ends: 21333 [2022-10-16 02:31:01,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 02:31:01,451 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 712 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:01,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 2386 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:31:01,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21333 states. [2022-10-16 02:31:01,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21333 to 17217. [2022-10-16 02:31:02,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17217 states, 13208 states have (on average 1.2605996365838885) internal successors, (16650), 13327 states have internal predecessors, (16650), 2546 states have call successors, (2546), 1462 states have call predecessors, (2546), 1462 states have return successors, (2546), 2427 states have call predecessors, (2546), 2546 states have call successors, (2546) [2022-10-16 02:31:02,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17217 states to 17217 states and 21742 transitions. [2022-10-16 02:31:02,056 INFO L78 Accepts]: Start accepts. Automaton has 17217 states and 21742 transitions. Word has length 223 [2022-10-16 02:31:02,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:02,057 INFO L495 AbstractCegarLoop]: Abstraction has 17217 states and 21742 transitions. [2022-10-16 02:31:02,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 02:31:02,057 INFO L276 IsEmpty]: Start isEmpty. Operand 17217 states and 21742 transitions. [2022-10-16 02:31:02,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-10-16 02:31:02,066 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:02,066 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:02,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-10-16 02:31:02,067 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:02,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:02,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1597268209, now seen corresponding path program 1 times [2022-10-16 02:31:02,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:02,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565578463] [2022-10-16 02:31:02,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:02,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:31:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:31:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:31:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:31:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:31:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:31:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 02:31:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-16 02:31:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-16 02:31:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-16 02:31:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-16 02:31:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 02:31:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-10-16 02:31:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-16 02:31:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 02:31:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 02:31:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-10-16 02:31:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 21 proven. 17 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-10-16 02:31:02,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:02,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565578463] [2022-10-16 02:31:02,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565578463] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:02,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286989496] [2022-10-16 02:31:02,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:02,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:02,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:02,507 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) [2022-10-16 02:31:02,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 02:31:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 02:31:02,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:02,880 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 96 proven. 4 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-10-16 02:31:02,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:03,052 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-10-16 02:31:03,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286989496] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:03,054 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:03,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2022-10-16 02:31:03,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544143426] [2022-10-16 02:31:03,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:03,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 02:31:03,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:03,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 02:31:03,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-10-16 02:31:03,056 INFO L87 Difference]: Start difference. First operand 17217 states and 21742 transitions. Second operand has 14 states, 14 states have (on average 20.214285714285715) internal successors, (283), 13 states have internal predecessors, (283), 6 states have call successors, (45), 4 states have call predecessors, (45), 6 states have return successors, (45), 7 states have call predecessors, (45), 6 states have call successors, (45) [2022-10-16 02:31:06,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:06,720 INFO L93 Difference]: Finished difference Result 30411 states and 41305 transitions. [2022-10-16 02:31:06,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-10-16 02:31:06,721 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.214285714285715) internal successors, (283), 13 states have internal predecessors, (283), 6 states have call successors, (45), 4 states have call predecessors, (45), 6 states have return successors, (45), 7 states have call predecessors, (45), 6 states have call successors, (45) Word has length 226 [2022-10-16 02:31:06,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:06,779 INFO L225 Difference]: With dead ends: 30411 [2022-10-16 02:31:06,779 INFO L226 Difference]: Without dead ends: 30411 [2022-10-16 02:31:06,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 494 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1298 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=749, Invalid=3411, Unknown=0, NotChecked=0, Total=4160 [2022-10-16 02:31:06,781 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 2135 mSDsluCounter, 5056 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 5768 SdHoareTripleChecker+Invalid, 3780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 970 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:06,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2135 Valid, 5768 Invalid, 3780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [970 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-16 02:31:06,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30411 states. [2022-10-16 02:31:07,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30411 to 17603. [2022-10-16 02:31:07,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17603 states, 13556 states have (on average 1.259294777220419) internal successors, (17071), 13674 states have internal predecessors, (17071), 2565 states have call successors, (2565), 1481 states have call predecessors, (2565), 1481 states have return successors, (2565), 2447 states have call predecessors, (2565), 2565 states have call successors, (2565) [2022-10-16 02:31:07,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17603 states to 17603 states and 22201 transitions. [2022-10-16 02:31:07,318 INFO L78 Accepts]: Start accepts. Automaton has 17603 states and 22201 transitions. Word has length 226 [2022-10-16 02:31:07,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:07,318 INFO L495 AbstractCegarLoop]: Abstraction has 17603 states and 22201 transitions. [2022-10-16 02:31:07,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.214285714285715) internal successors, (283), 13 states have internal predecessors, (283), 6 states have call successors, (45), 4 states have call predecessors, (45), 6 states have return successors, (45), 7 states have call predecessors, (45), 6 states have call successors, (45) [2022-10-16 02:31:07,318 INFO L276 IsEmpty]: Start isEmpty. Operand 17603 states and 22201 transitions. [2022-10-16 02:31:07,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-10-16 02:31:07,326 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:07,327 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:07,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:07,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2022-10-16 02:31:07,540 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:07,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:07,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1259974427, now seen corresponding path program 1 times [2022-10-16 02:31:07,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:07,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655265495] [2022-10-16 02:31:07,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:07,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:31:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:31:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-16 02:31:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-16 02:31:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-10-16 02:31:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-10-16 02:31:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:31:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-10-16 02:31:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-10-16 02:31:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,729 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-10-16 02:31:07,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:07,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655265495] [2022-10-16 02:31:07,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655265495] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:31:07,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:31:07,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:31:07,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827186421] [2022-10-16 02:31:07,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:31:07,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:31:07,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:07,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:31:07,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:31:07,731 INFO L87 Difference]: Start difference. First operand 17603 states and 22201 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 02:31:07,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:07,898 INFO L93 Difference]: Finished difference Result 21791 states and 27612 transitions. [2022-10-16 02:31:07,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:31:07,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 225 [2022-10-16 02:31:07,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:07,949 INFO L225 Difference]: With dead ends: 21791 [2022-10-16 02:31:07,949 INFO L226 Difference]: Without dead ends: 21791 [2022-10-16 02:31:07,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:31:07,951 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 452 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:07,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 1275 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:31:07,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21791 states. [2022-10-16 02:31:08,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21791 to 20155. [2022-10-16 02:31:08,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20155 states, 15459 states have (on average 1.2544149039394528) internal successors, (19392), 15595 states have internal predecessors, (19392), 2981 states have call successors, (2981), 1714 states have call predecessors, (2981), 1714 states have return successors, (2981), 2845 states have call predecessors, (2981), 2981 states have call successors, (2981) [2022-10-16 02:31:08,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20155 states to 20155 states and 25354 transitions. [2022-10-16 02:31:08,293 INFO L78 Accepts]: Start accepts. Automaton has 20155 states and 25354 transitions. Word has length 225 [2022-10-16 02:31:08,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:08,294 INFO L495 AbstractCegarLoop]: Abstraction has 20155 states and 25354 transitions. [2022-10-16 02:31:08,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 02:31:08,294 INFO L276 IsEmpty]: Start isEmpty. Operand 20155 states and 25354 transitions. [2022-10-16 02:31:08,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-10-16 02:31:08,304 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:08,305 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:08,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-10-16 02:31:08,305 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:08,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:08,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1107964148, now seen corresponding path program 1 times [2022-10-16 02:31:08,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:08,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951242731] [2022-10-16 02:31:08,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:08,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:31:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:31:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 02:31:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 02:31:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-10-16 02:31:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-16 02:31:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 02:31:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 02:31:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-10-16 02:31:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,529 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 17 proven. 32 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-10-16 02:31:09,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:09,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951242731] [2022-10-16 02:31:09,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951242731] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:09,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122204214] [2022-10-16 02:31:09,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:09,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:09,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:09,531 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) [2022-10-16 02:31:09,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 02:31:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:09,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 02:31:09,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:10,790 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 91 proven. 23 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-10-16 02:31:10,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:11,283 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 30 proven. 19 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-10-16 02:31:11,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122204214] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:11,284 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:11,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 8] total 21 [2022-10-16 02:31:11,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923873970] [2022-10-16 02:31:11,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:11,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 02:31:11,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:11,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 02:31:11,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-10-16 02:31:11,288 INFO L87 Difference]: Start difference. First operand 20155 states and 25354 transitions. Second operand has 21 states, 21 states have (on average 18.047619047619047) internal successors, (379), 21 states have internal predecessors, (379), 10 states have call successors, (49), 5 states have call predecessors, (49), 5 states have return successors, (48), 10 states have call predecessors, (48), 10 states have call successors, (48) [2022-10-16 02:31:16,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:16,049 INFO L93 Difference]: Finished difference Result 26064 states and 33963 transitions. [2022-10-16 02:31:16,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 02:31:16,049 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 18.047619047619047) internal successors, (379), 21 states have internal predecessors, (379), 10 states have call successors, (49), 5 states have call predecessors, (49), 5 states have return successors, (48), 10 states have call predecessors, (48), 10 states have call successors, (48) Word has length 226 [2022-10-16 02:31:16,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:16,096 INFO L225 Difference]: With dead ends: 26064 [2022-10-16 02:31:16,096 INFO L226 Difference]: Without dead ends: 26064 [2022-10-16 02:31:16,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 478 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 807 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=765, Invalid=2427, Unknown=0, NotChecked=0, Total=3192 [2022-10-16 02:31:16,097 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 3344 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 2756 mSolverCounterSat, 1423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3345 SdHoareTripleChecker+Valid, 3075 SdHoareTripleChecker+Invalid, 4179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1423 IncrementalHoareTripleChecker+Valid, 2756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:16,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3345 Valid, 3075 Invalid, 4179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1423 Valid, 2756 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-16 02:31:16,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26064 states. [2022-10-16 02:31:16,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26064 to 19644. [2022-10-16 02:31:16,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19644 states, 15057 states have (on average 1.251378096566381) internal successors, (18842), 15188 states have internal predecessors, (18842), 2912 states have call successors, (2912), 1674 states have call predecessors, (2912), 1674 states have return successors, (2912), 2781 states have call predecessors, (2912), 2912 states have call successors, (2912) [2022-10-16 02:31:16,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19644 states to 19644 states and 24666 transitions. [2022-10-16 02:31:16,481 INFO L78 Accepts]: Start accepts. Automaton has 19644 states and 24666 transitions. Word has length 226 [2022-10-16 02:31:16,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:16,481 INFO L495 AbstractCegarLoop]: Abstraction has 19644 states and 24666 transitions. [2022-10-16 02:31:16,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 18.047619047619047) internal successors, (379), 21 states have internal predecessors, (379), 10 states have call successors, (49), 5 states have call predecessors, (49), 5 states have return successors, (48), 10 states have call predecessors, (48), 10 states have call successors, (48) [2022-10-16 02:31:16,481 INFO L276 IsEmpty]: Start isEmpty. Operand 19644 states and 24666 transitions. [2022-10-16 02:31:16,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-10-16 02:31:16,490 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:16,490 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:16,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:16,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-10-16 02:31:16,705 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:16,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:16,706 INFO L85 PathProgramCache]: Analyzing trace with hash 124264100, now seen corresponding path program 1 times [2022-10-16 02:31:16,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:16,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387572102] [2022-10-16 02:31:16,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:16,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:31:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:31:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-16 02:31:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-16 02:31:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-10-16 02:31:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-10-16 02:31:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-10-16 02:31:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-10-16 02:31:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-10-16 02:31:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,249 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-10-16 02:31:17,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:17,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387572102] [2022-10-16 02:31:17,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387572102] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:17,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223523444] [2022-10-16 02:31:17,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:17,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:17,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:17,252 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:17,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 02:31:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:17,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:31:17,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:17,761 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 51 proven. 67 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-10-16 02:31:17,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:18,096 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-10-16 02:31:18,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223523444] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:18,097 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:18,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 12 [2022-10-16 02:31:18,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017353938] [2022-10-16 02:31:18,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:18,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 02:31:18,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:18,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 02:31:18,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-10-16 02:31:18,099 INFO L87 Difference]: Start difference. First operand 19644 states and 24666 transitions. Second operand has 12 states, 12 states have (on average 19.666666666666668) internal successors, (236), 11 states have internal predecessors, (236), 5 states have call successors, (37), 4 states have call predecessors, (37), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2022-10-16 02:31:19,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:19,529 INFO L93 Difference]: Finished difference Result 27209 states and 35752 transitions. [2022-10-16 02:31:19,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 02:31:19,529 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.666666666666668) internal successors, (236), 11 states have internal predecessors, (236), 5 states have call successors, (37), 4 states have call predecessors, (37), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) Word has length 229 [2022-10-16 02:31:19,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:19,575 INFO L225 Difference]: With dead ends: 27209 [2022-10-16 02:31:19,576 INFO L226 Difference]: Without dead ends: 27209 [2022-10-16 02:31:19,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 493 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2022-10-16 02:31:19,576 INFO L413 NwaCegarLoop]: 1105 mSDtfsCounter, 1144 mSDsluCounter, 4446 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 5551 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:19,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 5551 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 02:31:19,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27209 states. [2022-10-16 02:31:19,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27209 to 18923. [2022-10-16 02:31:19,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18923 states, 14532 states have (on average 1.2470410129369667) internal successors, (18122), 14661 states have internal predecessors, (18122), 2739 states have call successors, (2739), 1651 states have call predecessors, (2739), 1651 states have return successors, (2739), 2610 states have call predecessors, (2739), 2739 states have call successors, (2739) [2022-10-16 02:31:19,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18923 states to 18923 states and 23600 transitions. [2022-10-16 02:31:19,965 INFO L78 Accepts]: Start accepts. Automaton has 18923 states and 23600 transitions. Word has length 229 [2022-10-16 02:31:19,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:19,966 INFO L495 AbstractCegarLoop]: Abstraction has 18923 states and 23600 transitions. [2022-10-16 02:31:19,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.666666666666668) internal successors, (236), 11 states have internal predecessors, (236), 5 states have call successors, (37), 4 states have call predecessors, (37), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2022-10-16 02:31:19,966 INFO L276 IsEmpty]: Start isEmpty. Operand 18923 states and 23600 transitions. [2022-10-16 02:31:19,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-10-16 02:31:19,973 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:19,973 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:19,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:20,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:20,174 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:20,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:20,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1058254199, now seen corresponding path program 1 times [2022-10-16 02:31:20,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:20,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311716417] [2022-10-16 02:31:20,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:20,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:20,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:31:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:31:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 02:31:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 02:31:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-16 02:31:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-16 02:31:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 02:31:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-10-16 02:31:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 02:31:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-10-16 02:31:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,693 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-10-16 02:31:20,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:20,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311716417] [2022-10-16 02:31:20,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311716417] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:20,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913059159] [2022-10-16 02:31:20,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:20,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:20,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:20,695 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:20,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 02:31:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:20,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:31:20,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:21,239 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 46 proven. 87 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 02:31:21,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:21,524 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-10-16 02:31:21,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913059159] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:21,524 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:21,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 17 [2022-10-16 02:31:21,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926229812] [2022-10-16 02:31:21,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:21,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 02:31:21,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:21,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 02:31:21,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2022-10-16 02:31:21,527 INFO L87 Difference]: Start difference. First operand 18923 states and 23600 transitions. Second operand has 17 states, 17 states have (on average 17.764705882352942) internal successors, (302), 15 states have internal predecessors, (302), 7 states have call successors, (55), 4 states have call predecessors, (55), 7 states have return successors, (54), 9 states have call predecessors, (54), 7 states have call successors, (54) [2022-10-16 02:31:26,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:26,627 INFO L93 Difference]: Finished difference Result 36206 states and 46551 transitions. [2022-10-16 02:31:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-10-16 02:31:26,627 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 17.764705882352942) internal successors, (302), 15 states have internal predecessors, (302), 7 states have call successors, (55), 4 states have call predecessors, (55), 7 states have return successors, (54), 9 states have call predecessors, (54), 7 states have call successors, (54) Word has length 231 [2022-10-16 02:31:26,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:26,689 INFO L225 Difference]: With dead ends: 36206 [2022-10-16 02:31:26,689 INFO L226 Difference]: Without dead ends: 36206 [2022-10-16 02:31:26,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 528 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2516 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1214, Invalid=6618, Unknown=0, NotChecked=0, Total=7832 [2022-10-16 02:31:26,690 INFO L413 NwaCegarLoop]: 1287 mSDtfsCounter, 3870 mSDsluCounter, 11280 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 1645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3870 SdHoareTripleChecker+Valid, 12567 SdHoareTripleChecker+Invalid, 4900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1645 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:26,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3870 Valid, 12567 Invalid, 4900 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1645 Valid, 3255 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-16 02:31:26,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36206 states. [2022-10-16 02:31:27,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36206 to 18631. [2022-10-16 02:31:27,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18631 states, 14268 states have (on average 1.2433417437622651) internal successors, (17740), 14396 states have internal predecessors, (17740), 2695 states have call successors, (2695), 1667 states have call predecessors, (2695), 1667 states have return successors, (2695), 2567 states have call predecessors, (2695), 2695 states have call successors, (2695) [2022-10-16 02:31:27,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18631 states to 18631 states and 23130 transitions. [2022-10-16 02:31:27,106 INFO L78 Accepts]: Start accepts. Automaton has 18631 states and 23130 transitions. Word has length 231 [2022-10-16 02:31:27,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:27,107 INFO L495 AbstractCegarLoop]: Abstraction has 18631 states and 23130 transitions. [2022-10-16 02:31:27,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 17.764705882352942) internal successors, (302), 15 states have internal predecessors, (302), 7 states have call successors, (55), 4 states have call predecessors, (55), 7 states have return successors, (54), 9 states have call predecessors, (54), 7 states have call successors, (54) [2022-10-16 02:31:27,107 INFO L276 IsEmpty]: Start isEmpty. Operand 18631 states and 23130 transitions. [2022-10-16 02:31:27,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-10-16 02:31:27,114 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:27,114 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:27,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:27,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:27,315 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:27,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:27,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1283942493, now seen corresponding path program 1 times [2022-10-16 02:31:27,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:27,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050844375] [2022-10-16 02:31:27,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:27,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:31:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:31:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:31:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:31:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:31:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:31:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 02:31:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 02:31:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 02:31:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 02:31:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 02:31:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-16 02:31:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 02:31:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-10-16 02:31:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-10-16 02:31:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-10-16 02:31:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-10-16 02:31:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-10-16 02:31:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:27,905 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 28 proven. 12 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-10-16 02:31:27,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:27,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050844375] [2022-10-16 02:31:27,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050844375] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:27,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481982307] [2022-10-16 02:31:27,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:27,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:27,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:27,912 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:27,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 02:31:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-16 02:31:28,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:29,070 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 114 proven. 15 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-10-16 02:31:29,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:29,722 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-10-16 02:31:29,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481982307] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:29,722 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:29,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 25 [2022-10-16 02:31:29,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384911371] [2022-10-16 02:31:29,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:29,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 02:31:29,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:29,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 02:31:29,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-10-16 02:31:29,725 INFO L87 Difference]: Start difference. First operand 18631 states and 23130 transitions. Second operand has 25 states, 25 states have (on average 15.44) internal successors, (386), 25 states have internal predecessors, (386), 9 states have call successors, (55), 5 states have call predecessors, (55), 6 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) [2022-10-16 02:32:39,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:32:39,358 INFO L93 Difference]: Finished difference Result 105815 states and 141245 transitions. [2022-10-16 02:32:39,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 722 states. [2022-10-16 02:32:39,359 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 15.44) internal successors, (386), 25 states have internal predecessors, (386), 9 states have call successors, (55), 5 states have call predecessors, (55), 6 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) Word has length 235 [2022-10-16 02:32:39,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:32:39,580 INFO L225 Difference]: With dead ends: 105815 [2022-10-16 02:32:39,580 INFO L226 Difference]: Without dead ends: 105749 [2022-10-16 02:32:39,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1308 GetRequests, 568 SyntacticMatches, 1 SemanticMatches, 739 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258977 ImplicationChecksByTransitivity, 45.0s TimeCoverageRelationStatistics Valid=44537, Invalid=503803, Unknown=0, NotChecked=0, Total=548340 [2022-10-16 02:32:39,618 INFO L413 NwaCegarLoop]: 1267 mSDtfsCounter, 16148 mSDsluCounter, 14895 mSDsCounter, 0 mSdLazyCounter, 24353 mSolverCounterSat, 8371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16148 SdHoareTripleChecker+Valid, 16162 SdHoareTripleChecker+Invalid, 32724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8371 IncrementalHoareTripleChecker+Valid, 24353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:32:39,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16148 Valid, 16162 Invalid, 32724 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8371 Valid, 24353 Invalid, 0 Unknown, 0 Unchecked, 22.0s Time] [2022-10-16 02:32:39,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105749 states. [2022-10-16 02:32:41,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105749 to 38259. [2022-10-16 02:32:41,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38259 states, 29960 states have (on average 1.2386181575433912) internal successors, (37109), 30190 states have internal predecessors, (37109), 5073 states have call successors, (5073), 3225 states have call predecessors, (5073), 3225 states have return successors, (5073), 4843 states have call predecessors, (5073), 5073 states have call successors, (5073) [2022-10-16 02:32:41,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38259 states to 38259 states and 47255 transitions. [2022-10-16 02:32:41,107 INFO L78 Accepts]: Start accepts. Automaton has 38259 states and 47255 transitions. Word has length 235 [2022-10-16 02:32:41,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:32:41,107 INFO L495 AbstractCegarLoop]: Abstraction has 38259 states and 47255 transitions. [2022-10-16 02:32:41,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.44) internal successors, (386), 25 states have internal predecessors, (386), 9 states have call successors, (55), 5 states have call predecessors, (55), 6 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) [2022-10-16 02:32:41,107 INFO L276 IsEmpty]: Start isEmpty. Operand 38259 states and 47255 transitions. [2022-10-16 02:32:41,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-10-16 02:32:41,120 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:32:41,120 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:32:41,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 02:32:41,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:32:41,321 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:32:41,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:32:41,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1889928887, now seen corresponding path program 1 times [2022-10-16 02:32:41,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:32:41,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813644316] [2022-10-16 02:32:41,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:41,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:32:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:32:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:32:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:32:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:32:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:32:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:32:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:32:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:32:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 02:32:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 02:32:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 02:32:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 02:32:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 02:32:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-10-16 02:32:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 02:32:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-10-16 02:32:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-10-16 02:32:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-10-16 02:32:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-10-16 02:32:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-10-16 02:32:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:41,440 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-10-16 02:32:41,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:32:41,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813644316] [2022-10-16 02:32:41,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813644316] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:32:41,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:32:41,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:32:41,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786398954] [2022-10-16 02:32:41,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:32:41,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:32:41,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:32:41,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:32:41,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:32:41,442 INFO L87 Difference]: Start difference. First operand 38259 states and 47255 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 02:32:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:32:41,654 INFO L93 Difference]: Finished difference Result 35402 states and 43758 transitions. [2022-10-16 02:32:41,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:32:41,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 236 [2022-10-16 02:32:41,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:32:41,712 INFO L225 Difference]: With dead ends: 35402 [2022-10-16 02:32:41,712 INFO L226 Difference]: Without dead ends: 35402 [2022-10-16 02:32:41,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:32:41,713 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 197 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:32:41,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 513 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:32:41,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35402 states. [2022-10-16 02:32:42,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35402 to 35347. [2022-10-16 02:32:42,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35347 states, 27654 states have (on average 1.240073768713387) internal successors, (34293), 27870 states have internal predecessors, (34293), 4705 states have call successors, (4705), 2987 states have call predecessors, (4705), 2987 states have return successors, (4705), 4489 states have call predecessors, (4705), 4705 states have call successors, (4705) [2022-10-16 02:32:42,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35347 states to 35347 states and 43703 transitions. [2022-10-16 02:32:42,783 INFO L78 Accepts]: Start accepts. Automaton has 35347 states and 43703 transitions. Word has length 236 [2022-10-16 02:32:42,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:32:42,783 INFO L495 AbstractCegarLoop]: Abstraction has 35347 states and 43703 transitions. [2022-10-16 02:32:42,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 02:32:42,783 INFO L276 IsEmpty]: Start isEmpty. Operand 35347 states and 43703 transitions. [2022-10-16 02:32:42,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-10-16 02:32:42,794 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:32:42,794 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:32:42,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-10-16 02:32:42,795 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:32:42,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:32:42,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1802597593, now seen corresponding path program 1 times [2022-10-16 02:32:42,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:32:42,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229041903] [2022-10-16 02:32:42,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:42,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:32:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:32:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 02:32:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:32:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:32:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:32:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:32:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:32:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:32:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 02:32:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-16 02:32:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-16 02:32:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 02:32:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 02:32:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-16 02:32:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-16 02:32:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-10-16 02:32:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-10-16 02:32:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:32:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-10-16 02:32:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-10-16 02:32:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,412 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 44 proven. 10 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-10-16 02:32:43,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:32:43,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229041903] [2022-10-16 02:32:43,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229041903] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:32:43,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343316599] [2022-10-16 02:32:43,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:43,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:32:43,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:32:43,414 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:32:43,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 02:32:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:43,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 02:32:43,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:32:43,908 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 142 proven. 31 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 02:32:43,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:32:44,194 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 60 proven. 8 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-10-16 02:32:44,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343316599] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:32:44,194 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:32:44,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2022-10-16 02:32:44,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645681864] [2022-10-16 02:32:44,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:32:44,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 02:32:44,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:32:44,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 02:32:44,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2022-10-16 02:32:44,196 INFO L87 Difference]: Start difference. First operand 35347 states and 43703 transitions. Second operand has 22 states, 22 states have (on average 13.136363636363637) internal successors, (289), 19 states have internal predecessors, (289), 6 states have call successors, (51), 4 states have call predecessors, (51), 8 states have return successors, (51), 9 states have call predecessors, (51), 6 states have call successors, (51)