/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/systemc/bist_cell.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:48:59,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:48:59,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:48:59,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:48:59,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:48:59,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:48:59,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:48:59,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:48:59,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:48:59,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:48:59,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:48:59,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:48:59,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:48:59,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:48:59,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:48:59,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:48:59,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:48:59,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:48:59,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:48:59,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:48:59,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:48:59,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:48:59,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:48:59,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:48:59,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 17:48:59,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 17:48:59,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 17:48:59,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 17:48:59,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 17:48:59,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 17:48:59,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:48:59,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:48:59,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:48:59,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:48:59,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:48:59,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:48:59,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:48:59,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:48:59,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:48:59,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:48:59,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:48:59,625 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 [2022-10-15 17:48:59,685 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:48:59,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:48:59,686 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:48:59,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:48:59,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:48:59,687 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:48:59,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:48:59,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:48:59,689 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:48:59,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:48:59,689 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:48:59,689 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:48:59,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:48:59,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:48:59,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:48:59,690 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:48:59,690 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:48:59,691 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:48:59,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:48:59,691 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:48:59,691 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:48:59,691 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:48:59,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:48:59,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:48:59,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:48:59,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:48:59,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:48:59,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:48:59,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:48:59,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:48:59,693 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:49:00,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:49:00,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:49:00,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:49:00,148 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:49:00,148 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:49:00,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/bist_cell.cil.c [2022-10-15 17:49:00,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12512baf3/f3f91b5d1dac40bd93103b3c2da0812c/FLAGac625b34b [2022-10-15 17:49:00,851 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:49:00,851 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/bist_cell.cil.c [2022-10-15 17:49:00,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12512baf3/f3f91b5d1dac40bd93103b3c2da0812c/FLAGac625b34b [2022-10-15 17:49:01,216 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12512baf3/f3f91b5d1dac40bd93103b3c2da0812c [2022-10-15 17:49:01,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:49:01,226 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:49:01,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:49:01,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:49:01,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:49:01,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:49:01" (1/1) ... [2022-10-15 17:49:01,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b21076b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:01, skipping insertion in model container [2022-10-15 17:49:01,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:49:01" (1/1) ... [2022-10-15 17:49:01,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:49:01,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:49:01,495 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/systemc/bist_cell.cil.c[639,652] [2022-10-15 17:49:01,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:49:01,592 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:49:01,606 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/systemc/bist_cell.cil.c[639,652] [2022-10-15 17:49:01,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:49:01,653 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:49:01,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:01 WrapperNode [2022-10-15 17:49:01,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:49:01,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:49:01,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:49:01,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:49:01,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:01" (1/1) ... [2022-10-15 17:49:01,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:01" (1/1) ... [2022-10-15 17:49:01,730 INFO L138 Inliner]: procedures = 30, calls = 30, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 229 [2022-10-15 17:49:01,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:49:01,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:49:01,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:49:01,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:49:01,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:01" (1/1) ... [2022-10-15 17:49:01,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:01" (1/1) ... [2022-10-15 17:49:01,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:01" (1/1) ... [2022-10-15 17:49:01,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:01" (1/1) ... [2022-10-15 17:49:01,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:01" (1/1) ... [2022-10-15 17:49:01,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:01" (1/1) ... [2022-10-15 17:49:01,800 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:01" (1/1) ... [2022-10-15 17:49:01,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:01" (1/1) ... [2022-10-15 17:49:01,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:49:01,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:49:01,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:49:01,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:49:01,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:01" (1/1) ... [2022-10-15 17:49:01,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:49:01,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:01,850 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) [2022-10-15 17:49:01,853 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 [2022-10-15 17:49:01,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:49:01,907 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-15 17:49:01,907 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-15 17:49:01,908 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-15 17:49:01,908 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-15 17:49:01,908 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-15 17:49:01,908 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-15 17:49:01,908 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-15 17:49:01,908 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-15 17:49:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:49:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-15 17:49:01,909 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-15 17:49:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:49:01,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:49:02,001 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:49:02,004 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:49:02,615 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:49:02,637 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:49:02,637 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-15 17:49:02,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:49:02 BoogieIcfgContainer [2022-10-15 17:49:02,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:49:02,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:49:02,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:49:02,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:49:02,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:49:01" (1/3) ... [2022-10-15 17:49:02,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571d7e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:49:02, skipping insertion in model container [2022-10-15 17:49:02,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:01" (2/3) ... [2022-10-15 17:49:02,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571d7e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:49:02, skipping insertion in model container [2022-10-15 17:49:02,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:49:02" (3/3) ... [2022-10-15 17:49:02,654 INFO L112 eAbstractionObserver]: Analyzing ICFG bist_cell.cil.c [2022-10-15 17:49:02,674 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:49:02,675 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:49:02,755 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:49:02,766 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;@3281c1ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:49:02,766 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:49:02,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 86 states have (on average 1.569767441860465) internal successors, (135), 89 states have internal predecessors, (135), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-10-15 17:49:02,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-15 17:49:02,802 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:02,804 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] [2022-10-15 17:49:02,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:02,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:02,814 INFO L85 PathProgramCache]: Analyzing trace with hash 875974378, now seen corresponding path program 1 times [2022-10-15 17:49:02,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:02,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388714730] [2022-10-15 17:49:02,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:02,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:03,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:03,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:03,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 17:49:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:03,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 17:49:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:03,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:03,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:03,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388714730] [2022-10-15 17:49:03,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388714730] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:03,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:03,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:49:03,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003158241] [2022-10-15 17:49:03,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:03,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:49:03,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:03,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:49:03,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:49:03,576 INFO L87 Difference]: Start difference. First operand has 104 states, 86 states have (on average 1.569767441860465) internal successors, (135), 89 states have internal predecessors, (135), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 17:49:04,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:04,328 INFO L93 Difference]: Finished difference Result 183 states and 269 transitions. [2022-10-15 17:49:04,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 17:49:04,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2022-10-15 17:49:04,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:04,345 INFO L225 Difference]: With dead ends: 183 [2022-10-15 17:49:04,345 INFO L226 Difference]: Without dead ends: 181 [2022-10-15 17:49:04,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-10-15 17:49:04,352 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 203 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:04,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 410 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 17:49:04,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-10-15 17:49:04,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 120. [2022-10-15 17:49:04,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 102 states have (on average 1.5) internal successors, (153), 104 states have internal predecessors, (153), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2022-10-15 17:49:04,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 174 transitions. [2022-10-15 17:49:04,425 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 174 transitions. Word has length 42 [2022-10-15 17:49:04,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:04,427 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 174 transitions. [2022-10-15 17:49:04,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 17:49:04,428 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 174 transitions. [2022-10-15 17:49:04,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:49:04,439 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:04,439 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-10-15 17:49:04,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:49:04,440 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:04,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:04,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1623893266, now seen corresponding path program 1 times [2022-10-15 17:49:04,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:04,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412878189] [2022-10-15 17:49:04,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:04,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:04,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:49:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:04,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 17:49:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:04,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 17:49:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:04,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 17:49:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:04,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:04,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 17:49:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:04,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 17:49:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:04,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-15 17:49:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:04,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 17:49:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:04,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:04,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412878189] [2022-10-15 17:49:04,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412878189] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:04,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466514185] [2022-10-15 17:49:04,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:04,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:04,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:04,979 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) [2022-10-15 17:49:04,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 17:49:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:05,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:49:05,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:05,207 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:49:05,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:05,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466514185] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:05,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:05,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-10-15 17:49:05,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017679691] [2022-10-15 17:49:05,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:05,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:05,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:05,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:05,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:05,213 INFO L87 Difference]: Start difference. First operand 120 states and 174 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:05,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:05,226 INFO L93 Difference]: Finished difference Result 120 states and 173 transitions. [2022-10-15 17:49:05,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:05,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2022-10-15 17:49:05,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:05,230 INFO L225 Difference]: With dead ends: 120 [2022-10-15 17:49:05,230 INFO L226 Difference]: Without dead ends: 120 [2022-10-15 17:49:05,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:05,233 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 131 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:05,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 145 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:05,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-15 17:49:05,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-10-15 17:49:05,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 102 states have (on average 1.4901960784313726) internal successors, (152), 104 states have internal predecessors, (152), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2022-10-15 17:49:05,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 173 transitions. [2022-10-15 17:49:05,250 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 173 transitions. Word has length 101 [2022-10-15 17:49:05,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:05,251 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 173 transitions. [2022-10-15 17:49:05,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:05,252 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 173 transitions. [2022-10-15 17:49:05,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:49:05,256 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:05,256 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-10-15 17:49:05,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 17:49:05,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:05,472 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:05,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:05,474 INFO L85 PathProgramCache]: Analyzing trace with hash -334681520, now seen corresponding path program 1 times [2022-10-15 17:49:05,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:05,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457914956] [2022-10-15 17:49:05,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:05,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:05,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:05,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:49:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:05,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 17:49:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:05,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 17:49:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:05,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 17:49:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:05,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:05,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 17:49:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:05,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 17:49:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:05,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-15 17:49:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:05,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 17:49:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:05,826 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:05,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:05,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457914956] [2022-10-15 17:49:05,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457914956] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:05,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499304802] [2022-10-15 17:49:05,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:05,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:05,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:05,836 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) [2022-10-15 17:49:05,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 17:49:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:05,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:49:05,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:06,145 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-15 17:49:06,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:06,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499304802] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:06,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:06,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-10-15 17:49:06,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785789291] [2022-10-15 17:49:06,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:06,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:06,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:06,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:06,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:06,149 INFO L87 Difference]: Start difference. First operand 120 states and 173 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:06,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:06,356 INFO L93 Difference]: Finished difference Result 254 states and 367 transitions. [2022-10-15 17:49:06,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:49:06,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2022-10-15 17:49:06,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:06,360 INFO L225 Difference]: With dead ends: 254 [2022-10-15 17:49:06,361 INFO L226 Difference]: Without dead ends: 254 [2022-10-15 17:49:06,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:06,363 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 243 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:06,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 436 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:49:06,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-10-15 17:49:06,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 236. [2022-10-15 17:49:06,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 202 states have (on average 1.4851485148514851) internal successors, (300), 206 states have internal predecessors, (300), 19 states have call successors, (19), 11 states have call predecessors, (19), 13 states have return successors, (27), 20 states have call predecessors, (27), 19 states have call successors, (27) [2022-10-15 17:49:06,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 346 transitions. [2022-10-15 17:49:06,396 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 346 transitions. Word has length 101 [2022-10-15 17:49:06,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:06,396 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 346 transitions. [2022-10-15 17:49:06,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:06,397 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 346 transitions. [2022-10-15 17:49:06,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:49:06,406 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:06,406 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-10-15 17:49:06,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:06,607 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,SelfDestructingSolverStorable2 [2022-10-15 17:49:06,608 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:06,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:06,608 INFO L85 PathProgramCache]: Analyzing trace with hash 230441168, now seen corresponding path program 1 times [2022-10-15 17:49:06,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:06,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405542368] [2022-10-15 17:49:06,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:06,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:06,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:49:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:06,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 17:49:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:06,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 17:49:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:06,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 17:49:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:06,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:06,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 17:49:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:06,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 17:49:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:06,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-15 17:49:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:06,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 17:49:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:06,869 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:06,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:06,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405542368] [2022-10-15 17:49:06,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405542368] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:06,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696273805] [2022-10-15 17:49:06,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:06,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:06,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:06,872 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) [2022-10-15 17:49:06,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 17:49:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:06,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:49:06,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-15 17:49:07,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:07,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696273805] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:07,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:07,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-10-15 17:49:07,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074989060] [2022-10-15 17:49:07,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:07,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:07,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:07,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:07,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:07,099 INFO L87 Difference]: Start difference. First operand 236 states and 346 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:07,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:07,247 INFO L93 Difference]: Finished difference Result 491 states and 724 transitions. [2022-10-15 17:49:07,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:49:07,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2022-10-15 17:49:07,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:07,253 INFO L225 Difference]: With dead ends: 491 [2022-10-15 17:49:07,253 INFO L226 Difference]: Without dead ends: 491 [2022-10-15 17:49:07,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:07,262 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 240 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:07,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 424 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:07,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-10-15 17:49:07,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 472. [2022-10-15 17:49:07,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 404 states have (on average 1.4727722772277227) internal successors, (595), 414 states have internal predecessors, (595), 37 states have call successors, (37), 21 states have call predecessors, (37), 29 states have return successors, (71), 40 states have call predecessors, (71), 37 states have call successors, (71) [2022-10-15 17:49:07,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 703 transitions. [2022-10-15 17:49:07,331 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 703 transitions. Word has length 101 [2022-10-15 17:49:07,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:07,332 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 703 transitions. [2022-10-15 17:49:07,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:07,332 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 703 transitions. [2022-10-15 17:49:07,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:49:07,336 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:07,336 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-10-15 17:49:07,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-15 17:49:07,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:07,545 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:07,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:07,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1773302384, now seen corresponding path program 1 times [2022-10-15 17:49:07,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:07,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115113900] [2022-10-15 17:49:07,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:07,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:49:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 17:49:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 17:49:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 17:49:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 17:49:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 17:49:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-15 17:49:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 17:49:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,741 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:07,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:07,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115113900] [2022-10-15 17:49:07,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115113900] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:07,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390596957] [2022-10-15 17:49:07,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:07,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:07,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:07,748 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) [2022-10-15 17:49:07,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 17:49:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:49:07,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:07,971 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-15 17:49:07,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:07,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390596957] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:07,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:07,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-10-15 17:49:07,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482687848] [2022-10-15 17:49:07,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:07,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:07,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:07,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:07,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:07,975 INFO L87 Difference]: Start difference. First operand 472 states and 703 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:08,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:08,152 INFO L93 Difference]: Finished difference Result 1115 states and 1684 transitions. [2022-10-15 17:49:08,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:49:08,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2022-10-15 17:49:08,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:08,164 INFO L225 Difference]: With dead ends: 1115 [2022-10-15 17:49:08,164 INFO L226 Difference]: Without dead ends: 1115 [2022-10-15 17:49:08,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:08,174 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 253 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:08,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 464 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:08,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2022-10-15 17:49:08,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1024. [2022-10-15 17:49:08,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 882 states have (on average 1.4501133786848073) internal successors, (1279), 910 states have internal predecessors, (1279), 73 states have call successors, (73), 41 states have call predecessors, (73), 67 states have return successors, (201), 80 states have call predecessors, (201), 73 states have call successors, (201) [2022-10-15 17:49:08,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1553 transitions. [2022-10-15 17:49:08,263 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1553 transitions. Word has length 101 [2022-10-15 17:49:08,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:08,264 INFO L495 AbstractCegarLoop]: Abstraction has 1024 states and 1553 transitions. [2022-10-15 17:49:08,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:08,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1553 transitions. [2022-10-15 17:49:08,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:49:08,277 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:08,277 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-10-15 17:49:08,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:08,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:08,478 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:08,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:08,480 INFO L85 PathProgramCache]: Analyzing trace with hash 143721488, now seen corresponding path program 1 times [2022-10-15 17:49:08,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:08,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161611276] [2022-10-15 17:49:08,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:08,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:49:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 17:49:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 17:49:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 17:49:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 17:49:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 17:49:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-15 17:49:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 17:49:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,652 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:08,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:08,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161611276] [2022-10-15 17:49:08,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161611276] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:08,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668420428] [2022-10-15 17:49:08,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:08,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:08,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:08,655 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) [2022-10-15 17:49:08,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 17:49:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:49:08,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:08,839 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-15 17:49:08,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:08,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668420428] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:08,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:08,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-10-15 17:49:08,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000397867] [2022-10-15 17:49:08,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:08,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:08,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:08,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:08,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:08,843 INFO L87 Difference]: Start difference. First operand 1024 states and 1553 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:09,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:09,021 INFO L93 Difference]: Finished difference Result 2399 states and 3742 transitions. [2022-10-15 17:49:09,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:49:09,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2022-10-15 17:49:09,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:09,038 INFO L225 Difference]: With dead ends: 2399 [2022-10-15 17:49:09,038 INFO L226 Difference]: Without dead ends: 2399 [2022-10-15 17:49:09,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:09,040 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 248 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:09,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 450 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:09,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2022-10-15 17:49:09,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 2264. [2022-10-15 17:49:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2264 states, 1956 states have (on average 1.4238241308793456) internal successors, (2785), 2038 states have internal predecessors, (2785), 145 states have call successors, (145), 81 states have call predecessors, (145), 161 states have return successors, (611), 160 states have call predecessors, (611), 145 states have call successors, (611) [2022-10-15 17:49:09,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3541 transitions. [2022-10-15 17:49:09,194 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3541 transitions. Word has length 101 [2022-10-15 17:49:09,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:09,194 INFO L495 AbstractCegarLoop]: Abstraction has 2264 states and 3541 transitions. [2022-10-15 17:49:09,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:09,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3541 transitions. [2022-10-15 17:49:09,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:49:09,210 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:09,210 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-10-15 17:49:09,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:09,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:09,426 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:09,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:09,428 INFO L85 PathProgramCache]: Analyzing trace with hash 482655632, now seen corresponding path program 1 times [2022-10-15 17:49:09,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:09,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933009310] [2022-10-15 17:49:09,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:09,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:49:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 17:49:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 17:49:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 17:49:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 17:49:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 17:49:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-15 17:49:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 17:49:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,604 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:09,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:09,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933009310] [2022-10-15 17:49:09,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933009310] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:09,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046434998] [2022-10-15 17:49:09,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:09,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:09,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:09,615 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) [2022-10-15 17:49:09,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 17:49:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 17:49:09,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:09,769 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:09,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:09,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046434998] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:09,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:09,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-10-15 17:49:09,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178095993] [2022-10-15 17:49:09,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:09,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:49:09,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:09,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:49:09,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:49:09,773 INFO L87 Difference]: Start difference. First operand 2264 states and 3541 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:09,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:09,843 INFO L93 Difference]: Finished difference Result 2632 states and 4149 transitions. [2022-10-15 17:49:09,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:49:09,844 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2022-10-15 17:49:09,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:09,865 INFO L225 Difference]: With dead ends: 2632 [2022-10-15 17:49:09,865 INFO L226 Difference]: Without dead ends: 2632 [2022-10-15 17:49:09,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-10-15 17:49:09,867 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 30 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:09,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 719 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:09,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2022-10-15 17:49:09,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2344. [2022-10-15 17:49:09,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2344 states, 2020 states have (on average 1.4103960396039603) internal successors, (2849), 2102 states have internal predecessors, (2849), 145 states have call successors, (145), 81 states have call predecessors, (145), 177 states have return successors, (643), 176 states have call predecessors, (643), 145 states have call successors, (643) [2022-10-15 17:49:09,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2344 states to 2344 states and 3637 transitions. [2022-10-15 17:49:09,991 INFO L78 Accepts]: Start accepts. Automaton has 2344 states and 3637 transitions. Word has length 101 [2022-10-15 17:49:09,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:09,991 INFO L495 AbstractCegarLoop]: Abstraction has 2344 states and 3637 transitions. [2022-10-15 17:49:09,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:09,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2344 states and 3637 transitions. [2022-10-15 17:49:10,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:49:10,007 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:10,007 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-10-15 17:49:10,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:10,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:10,221 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:10,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:10,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1869441042, now seen corresponding path program 1 times [2022-10-15 17:49:10,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:10,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70712058] [2022-10-15 17:49:10,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:10,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:49:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 17:49:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 17:49:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 17:49:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 17:49:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 17:49:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-15 17:49:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 17:49:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,487 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:10,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:10,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70712058] [2022-10-15 17:49:10,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70712058] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:10,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426518372] [2022-10-15 17:49:10,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:10,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:10,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:10,490 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) [2022-10-15 17:49:10,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 17:49:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:49:10,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:10,644 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 17:49:10,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:10,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426518372] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:10,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:10,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-10-15 17:49:10,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326321871] [2022-10-15 17:49:10,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:10,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:10,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:10,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:10,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:10,648 INFO L87 Difference]: Start difference. First operand 2344 states and 3637 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:10,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:10,688 INFO L93 Difference]: Finished difference Result 2876 states and 4457 transitions. [2022-10-15 17:49:10,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:10,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2022-10-15 17:49:10,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:10,708 INFO L225 Difference]: With dead ends: 2876 [2022-10-15 17:49:10,708 INFO L226 Difference]: Without dead ends: 2876 [2022-10-15 17:49:10,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:10,710 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 69 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:10,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 279 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:10,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2022-10-15 17:49:10,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 2581. [2022-10-15 17:49:10,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2581 states, 2161 states have (on average 1.3757519666820917) internal successors, (2973), 2243 states have internal predecessors, (2973), 209 states have call successors, (209), 113 states have call predecessors, (209), 209 states have return successors, (788), 256 states have call predecessors, (788), 209 states have call successors, (788) [2022-10-15 17:49:10,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2581 states to 2581 states and 3970 transitions. [2022-10-15 17:49:10,822 INFO L78 Accepts]: Start accepts. Automaton has 2581 states and 3970 transitions. Word has length 101 [2022-10-15 17:49:10,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:10,823 INFO L495 AbstractCegarLoop]: Abstraction has 2581 states and 3970 transitions. [2022-10-15 17:49:10,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:10,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2581 states and 3970 transitions. [2022-10-15 17:49:10,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:49:10,836 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:10,837 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-10-15 17:49:10,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:11,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:11,052 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:11,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:11,053 INFO L85 PathProgramCache]: Analyzing trace with hash 902090388, now seen corresponding path program 1 times [2022-10-15 17:49:11,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:11,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182876295] [2022-10-15 17:49:11,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:11,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:49:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 17:49:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 17:49:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 17:49:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 17:49:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 17:49:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-15 17:49:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 17:49:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,211 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:11,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:11,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182876295] [2022-10-15 17:49:11,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182876295] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:11,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906991051] [2022-10-15 17:49:11,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:11,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:11,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:11,214 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) [2022-10-15 17:49:11,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 17:49:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 17:49:11,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:11,356 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-15 17:49:11,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:11,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906991051] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:11,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:11,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-10-15 17:49:11,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507472727] [2022-10-15 17:49:11,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:11,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:11,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:11,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:11,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:11,359 INFO L87 Difference]: Start difference. First operand 2581 states and 3970 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:11,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:11,429 INFO L93 Difference]: Finished difference Result 2661 states and 4066 transitions. [2022-10-15 17:49:11,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:49:11,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2022-10-15 17:49:11,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:11,447 INFO L225 Difference]: With dead ends: 2661 [2022-10-15 17:49:11,447 INFO L226 Difference]: Without dead ends: 2661 [2022-10-15 17:49:11,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:11,448 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 9 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:11,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 566 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:11,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2661 states. [2022-10-15 17:49:11,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2661 to 2629. [2022-10-15 17:49:11,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2629 states, 2209 states have (on average 1.3675871435038478) internal successors, (3021), 2291 states have internal predecessors, (3021), 209 states have call successors, (209), 113 states have call predecessors, (209), 209 states have return successors, (788), 256 states have call predecessors, (788), 209 states have call successors, (788) [2022-10-15 17:49:11,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 4018 transitions. [2022-10-15 17:49:11,561 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 4018 transitions. Word has length 101 [2022-10-15 17:49:11,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:11,561 INFO L495 AbstractCegarLoop]: Abstraction has 2629 states and 4018 transitions. [2022-10-15 17:49:11,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:11,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 4018 transitions. [2022-10-15 17:49:11,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-15 17:49:11,575 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:11,575 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:49:11,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:11,790 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,SelfDestructingSolverStorable8 [2022-10-15 17:49:11,790 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:11,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:11,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1466109527, now seen corresponding path program 1 times [2022-10-15 17:49:11,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:11,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365939097] [2022-10-15 17:49:11,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:11,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:49:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 17:49:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 17:49:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 17:49:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 17:49:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-15 17:49:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-15 17:49:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-15 17:49:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,947 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:11,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:11,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365939097] [2022-10-15 17:49:11,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365939097] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:11,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312721343] [2022-10-15 17:49:11,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:11,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:11,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:11,949 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) [2022-10-15 17:49:11,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 17:49:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:49:12,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:12,076 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-15 17:49:12,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:12,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312721343] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:12,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:12,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-10-15 17:49:12,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904320610] [2022-10-15 17:49:12,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:12,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:12,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:12,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:12,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:12,079 INFO L87 Difference]: Start difference. First operand 2629 states and 4018 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:12,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:12,114 INFO L93 Difference]: Finished difference Result 2911 states and 4558 transitions. [2022-10-15 17:49:12,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:12,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 104 [2022-10-15 17:49:12,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:12,135 INFO L225 Difference]: With dead ends: 2911 [2022-10-15 17:49:12,136 INFO L226 Difference]: Without dead ends: 2911 [2022-10-15 17:49:12,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:12,137 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 17 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:12,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 287 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:12,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2022-10-15 17:49:12,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2911. [2022-10-15 17:49:12,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2395 states have (on average 1.352400835073069) internal successors, (3239), 2477 states have internal predecessors, (3239), 273 states have call successors, (273), 145 states have call predecessors, (273), 241 states have return successors, (1046), 320 states have call predecessors, (1046), 273 states have call successors, (1046) [2022-10-15 17:49:12,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4558 transitions. [2022-10-15 17:49:12,294 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4558 transitions. Word has length 104 [2022-10-15 17:49:12,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:12,294 INFO L495 AbstractCegarLoop]: Abstraction has 2911 states and 4558 transitions. [2022-10-15 17:49:12,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:12,295 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4558 transitions. [2022-10-15 17:49:12,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-15 17:49:12,311 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:12,311 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:49:12,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:12,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-15 17:49:12,524 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:12,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:12,525 INFO L85 PathProgramCache]: Analyzing trace with hash -492465259, now seen corresponding path program 1 times [2022-10-15 17:49:12,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:12,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13230941] [2022-10-15 17:49:12,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:12,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:49:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 17:49:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 17:49:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 17:49:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 17:49:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-15 17:49:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-15 17:49:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-15 17:49:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,684 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:12,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:12,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13230941] [2022-10-15 17:49:12,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13230941] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:12,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69525317] [2022-10-15 17:49:12,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:12,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:12,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:12,686 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) [2022-10-15 17:49:12,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 17:49:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:49:12,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:12,878 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:12,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:12,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69525317] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:12,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:12,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-10-15 17:49:12,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797315299] [2022-10-15 17:49:12,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:12,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:12,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:12,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:12,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:12,881 INFO L87 Difference]: Start difference. First operand 2911 states and 4558 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:13,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:13,093 INFO L93 Difference]: Finished difference Result 6564 states and 10630 transitions. [2022-10-15 17:49:13,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:49:13,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 104 [2022-10-15 17:49:13,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:13,185 INFO L225 Difference]: With dead ends: 6564 [2022-10-15 17:49:13,186 INFO L226 Difference]: Without dead ends: 6564 [2022-10-15 17:49:13,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:13,190 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 213 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:13,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 790 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:13,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6564 states. [2022-10-15 17:49:13,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6564 to 6461. [2022-10-15 17:49:13,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6461 states, 5431 states have (on average 1.3494752347633954) internal successors, (7329), 5691 states have internal predecessors, (7329), 481 states have call successors, (481), 257 states have call predecessors, (481), 547 states have return successors, (2540), 576 states have call predecessors, (2540), 481 states have call successors, (2540) [2022-10-15 17:49:13,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6461 states to 6461 states and 10350 transitions. [2022-10-15 17:49:13,578 INFO L78 Accepts]: Start accepts. Automaton has 6461 states and 10350 transitions. Word has length 104 [2022-10-15 17:49:13,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:13,578 INFO L495 AbstractCegarLoop]: Abstraction has 6461 states and 10350 transitions. [2022-10-15 17:49:13,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:13,579 INFO L276 IsEmpty]: Start isEmpty. Operand 6461 states and 10350 transitions. [2022-10-15 17:49:13,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-15 17:49:13,623 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:13,623 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:49:13,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:13,838 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,SelfDestructingSolverStorable10 [2022-10-15 17:49:13,838 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:13,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:13,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1708618985, now seen corresponding path program 1 times [2022-10-15 17:49:13,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:13,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288011308] [2022-10-15 17:49:13,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:13,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:49:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 17:49:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 17:49:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 17:49:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 17:49:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-15 17:49:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-15 17:49:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-15 17:49:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:14,000 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:14,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:14,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288011308] [2022-10-15 17:49:14,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288011308] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:14,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850488219] [2022-10-15 17:49:14,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:14,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:14,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:14,002 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) [2022-10-15 17:49:14,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-15 17:49:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:14,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 17:49:14,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:14,161 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:49:14,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:14,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850488219] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:14,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:14,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 9 [2022-10-15 17:49:14,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303354063] [2022-10-15 17:49:14,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:14,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:14,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:14,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:14,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:14,164 INFO L87 Difference]: Start difference. First operand 6461 states and 10350 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:14,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:14,383 INFO L93 Difference]: Finished difference Result 7925 states and 12618 transitions. [2022-10-15 17:49:14,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:49:14,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2022-10-15 17:49:14,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:14,438 INFO L225 Difference]: With dead ends: 7925 [2022-10-15 17:49:14,439 INFO L226 Difference]: Without dead ends: 7925 [2022-10-15 17:49:14,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:49:14,440 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 92 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:14,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 350 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:14,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7925 states. [2022-10-15 17:49:14,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7925 to 6461. [2022-10-15 17:49:14,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6461 states, 5431 states have (on average 1.349106978457006) internal successors, (7327), 5691 states have internal predecessors, (7327), 481 states have call successors, (481), 257 states have call predecessors, (481), 547 states have return successors, (2540), 576 states have call predecessors, (2540), 481 states have call successors, (2540) [2022-10-15 17:49:14,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6461 states to 6461 states and 10348 transitions. [2022-10-15 17:49:14,798 INFO L78 Accepts]: Start accepts. Automaton has 6461 states and 10348 transitions. Word has length 104 [2022-10-15 17:49:14,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:14,798 INFO L495 AbstractCegarLoop]: Abstraction has 6461 states and 10348 transitions. [2022-10-15 17:49:14,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:14,798 INFO L276 IsEmpty]: Start isEmpty. Operand 6461 states and 10348 transitions. [2022-10-15 17:49:14,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-15 17:49:14,839 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:14,839 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:49:14,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:15,054 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,SelfDestructingSolverStorable11 [2022-10-15 17:49:15,054 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:15,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:15,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2066714082, now seen corresponding path program 1 times [2022-10-15 17:49:15,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:15,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888598365] [2022-10-15 17:49:15,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:15,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 17:49:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-15 17:49:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-15 17:49:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:49:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-15 17:49:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:49:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-15 17:49:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-15 17:49:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-15 17:49:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,212 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:15,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:15,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888598365] [2022-10-15 17:49:15,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888598365] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:15,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725687596] [2022-10-15 17:49:15,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:15,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:15,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:15,215 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) [2022-10-15 17:49:15,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-15 17:49:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:49:15,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:15,411 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-15 17:49:15,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:15,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725687596] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:15,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:15,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-10-15 17:49:15,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141813138] [2022-10-15 17:49:15,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:15,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:15,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:15,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:15,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:15,414 INFO L87 Difference]: Start difference. First operand 6461 states and 10348 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:15,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:15,473 INFO L93 Difference]: Finished difference Result 6897 states and 11164 transitions. [2022-10-15 17:49:15,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:15,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 107 [2022-10-15 17:49:15,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:15,514 INFO L225 Difference]: With dead ends: 6897 [2022-10-15 17:49:15,514 INFO L226 Difference]: Without dead ends: 6897 [2022-10-15 17:49:15,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:15,515 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 19 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:15,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 292 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:15,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6897 states. [2022-10-15 17:49:15,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6897 to 6897. [2022-10-15 17:49:15,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6897 states, 5723 states have (on average 1.3403809190983749) internal successors, (7671), 5983 states have internal predecessors, (7671), 577 states have call successors, (577), 305 states have call predecessors, (577), 595 states have return successors, (2916), 672 states have call predecessors, (2916), 577 states have call successors, (2916) [2022-10-15 17:49:15,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6897 states to 6897 states and 11164 transitions. [2022-10-15 17:49:15,810 INFO L78 Accepts]: Start accepts. Automaton has 6897 states and 11164 transitions. Word has length 107 [2022-10-15 17:49:15,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:15,811 INFO L495 AbstractCegarLoop]: Abstraction has 6897 states and 11164 transitions. [2022-10-15 17:49:15,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:15,811 INFO L276 IsEmpty]: Start isEmpty. Operand 6897 states and 11164 transitions. [2022-10-15 17:49:15,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-15 17:49:15,840 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:15,841 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:49:15,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:16,054 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,SelfDestructingSolverStorable12 [2022-10-15 17:49:16,055 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:16,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:16,055 INFO L85 PathProgramCache]: Analyzing trace with hash -190231264, now seen corresponding path program 1 times [2022-10-15 17:49:16,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:16,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699947120] [2022-10-15 17:49:16,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:16,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 17:49:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-15 17:49:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-15 17:49:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:49:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-15 17:49:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:49:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-15 17:49:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-15 17:49:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-15 17:49:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,271 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:16,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:16,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699947120] [2022-10-15 17:49:16,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699947120] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:16,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776044665] [2022-10-15 17:49:16,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:16,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:16,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:16,274 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) [2022-10-15 17:49:16,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-15 17:49:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:49:16,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:16,465 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:16,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:16,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776044665] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:16,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:16,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-10-15 17:49:16,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867300701] [2022-10-15 17:49:16,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:16,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:16,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:16,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:16,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:16,468 INFO L87 Difference]: Start difference. First operand 6897 states and 11164 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:16,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:16,682 INFO L93 Difference]: Finished difference Result 7024 states and 10890 transitions. [2022-10-15 17:49:16,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:49:16,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 107 [2022-10-15 17:49:16,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:16,714 INFO L225 Difference]: With dead ends: 7024 [2022-10-15 17:49:16,714 INFO L226 Difference]: Without dead ends: 7024 [2022-10-15 17:49:16,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:16,716 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 201 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:16,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 760 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:16,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7024 states. [2022-10-15 17:49:16,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7024 to 7017. [2022-10-15 17:49:16,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7017 states, 5819 states have (on average 1.3313284069427738) internal successors, (7747), 6103 states have internal predecessors, (7747), 577 states have call successors, (577), 305 states have call predecessors, (577), 619 states have return successors, (2560), 672 states have call predecessors, (2560), 577 states have call successors, (2560) [2022-10-15 17:49:16,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7017 states to 7017 states and 10884 transitions. [2022-10-15 17:49:16,990 INFO L78 Accepts]: Start accepts. Automaton has 7017 states and 10884 transitions. Word has length 107 [2022-10-15 17:49:16,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:16,991 INFO L495 AbstractCegarLoop]: Abstraction has 7017 states and 10884 transitions. [2022-10-15 17:49:16,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:16,991 INFO L276 IsEmpty]: Start isEmpty. Operand 7017 states and 10884 transitions. [2022-10-15 17:49:17,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-15 17:49:17,051 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:17,052 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:49:17,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:17,267 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,SelfDestructingSolverStorable13 [2022-10-15 17:49:17,268 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:17,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:17,268 INFO L85 PathProgramCache]: Analyzing trace with hash -2004432038, now seen corresponding path program 2 times [2022-10-15 17:49:17,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:17,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182642833] [2022-10-15 17:49:17,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:17,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:17,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:17,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 17:49:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:17,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-15 17:49:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:17,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-15 17:49:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:17,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:49:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:17,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-15 17:49:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:17,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:49:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:17,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-15 17:49:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:17,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-15 17:49:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:17,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-15 17:49:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:17,420 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:17,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:17,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182642833] [2022-10-15 17:49:17,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182642833] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:17,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534449739] [2022-10-15 17:49:17,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 17:49:17,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:17,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:17,422 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) [2022-10-15 17:49:17,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-15 17:49:17,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 17:49:17,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:49:17,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 17:49:17,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:17,550 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-10-15 17:49:17,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:17,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534449739] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:17,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:17,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-10-15 17:49:17,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074575582] [2022-10-15 17:49:17,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:17,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:17,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:17,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:17,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:17,553 INFO L87 Difference]: Start difference. First operand 7017 states and 10884 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-15 17:49:17,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:17,710 INFO L93 Difference]: Finished difference Result 10121 states and 18532 transitions. [2022-10-15 17:49:17,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:49:17,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 107 [2022-10-15 17:49:17,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:17,786 INFO L225 Difference]: With dead ends: 10121 [2022-10-15 17:49:17,786 INFO L226 Difference]: Without dead ends: 10121 [2022-10-15 17:49:17,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-10-15 17:49:17,788 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 149 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:17,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 731 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:17,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10121 states. [2022-10-15 17:49:18,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10121 to 7209. [2022-10-15 17:49:18,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7209 states, 6011 states have (on average 1.320745300282815) internal successors, (7939), 6295 states have internal predecessors, (7939), 577 states have call successors, (577), 305 states have call predecessors, (577), 619 states have return successors, (2560), 672 states have call predecessors, (2560), 577 states have call successors, (2560) [2022-10-15 17:49:18,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7209 states to 7209 states and 11076 transitions. [2022-10-15 17:49:18,347 INFO L78 Accepts]: Start accepts. Automaton has 7209 states and 11076 transitions. Word has length 107 [2022-10-15 17:49:18,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:18,348 INFO L495 AbstractCegarLoop]: Abstraction has 7209 states and 11076 transitions. [2022-10-15 17:49:18,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-15 17:49:18,348 INFO L276 IsEmpty]: Start isEmpty. Operand 7209 states and 11076 transitions. [2022-10-15 17:49:18,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-15 17:49:18,381 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:18,381 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:49:18,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:18,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:18,591 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:18,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:18,592 INFO L85 PathProgramCache]: Analyzing trace with hash -229424676, now seen corresponding path program 1 times [2022-10-15 17:49:18,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:18,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421337581] [2022-10-15 17:49:18,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:18,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 17:49:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-15 17:49:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-15 17:49:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:49:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-15 17:49:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:49:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-15 17:49:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-15 17:49:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-15 17:49:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 17:49:18,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:18,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421337581] [2022-10-15 17:49:18,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421337581] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:18,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520474] [2022-10-15 17:49:18,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:18,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:18,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:18,772 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) [2022-10-15 17:49:18,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-15 17:49:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 17:49:18,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:18,933 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-15 17:49:18,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:18,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520474] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:18,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:18,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-10-15 17:49:18,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19731293] [2022-10-15 17:49:18,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:18,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:49:18,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:18,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:49:18,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:49:18,936 INFO L87 Difference]: Start difference. First operand 7209 states and 11076 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-15 17:49:19,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:19,037 INFO L93 Difference]: Finished difference Result 8281 states and 14276 transitions. [2022-10-15 17:49:19,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:49:19,038 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 107 [2022-10-15 17:49:19,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:19,082 INFO L225 Difference]: With dead ends: 8281 [2022-10-15 17:49:19,082 INFO L226 Difference]: Without dead ends: 8281 [2022-10-15 17:49:19,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:19,083 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 40 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:19,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 890 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:19,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8281 states. [2022-10-15 17:49:19,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8281 to 7113. [2022-10-15 17:49:19,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7113 states, 5915 states have (on average 1.3151310228233306) internal successors, (7779), 6199 states have internal predecessors, (7779), 577 states have call successors, (577), 305 states have call predecessors, (577), 619 states have return successors, (2560), 672 states have call predecessors, (2560), 577 states have call successors, (2560) [2022-10-15 17:49:19,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7113 states to 7113 states and 10916 transitions. [2022-10-15 17:49:19,478 INFO L78 Accepts]: Start accepts. Automaton has 7113 states and 10916 transitions. Word has length 107 [2022-10-15 17:49:19,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:19,479 INFO L495 AbstractCegarLoop]: Abstraction has 7113 states and 10916 transitions. [2022-10-15 17:49:19,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-15 17:49:19,479 INFO L276 IsEmpty]: Start isEmpty. Operand 7113 states and 10916 transitions. [2022-10-15 17:49:19,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-10-15 17:49:19,505 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:19,505 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2022-10-15 17:49:19,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:19,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-15 17:49:19,718 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:19,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:19,719 INFO L85 PathProgramCache]: Analyzing trace with hash -215204733, now seen corresponding path program 1 times [2022-10-15 17:49:19,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:19,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722030397] [2022-10-15 17:49:19,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:19,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:19,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:19,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 17:49:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:19,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-15 17:49:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:19,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-15 17:49:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:19,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:49:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:19,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-15 17:49:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:19,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:49:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:19,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-15 17:49:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:19,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 17:49:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:19,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-15 17:49:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:19,903 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-15 17:49:19,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:19,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722030397] [2022-10-15 17:49:19,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722030397] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:19,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688176917] [2022-10-15 17:49:19,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:19,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:19,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:19,907 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) [2022-10-15 17:49:19,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-15 17:49:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:20,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 17:49:20,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:20,067 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-15 17:49:20,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:20,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688176917] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:20,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:20,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 9 [2022-10-15 17:49:20,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120368694] [2022-10-15 17:49:20,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:20,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:20,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:20,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:20,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:20,070 INFO L87 Difference]: Start difference. First operand 7113 states and 10916 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:20,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:20,228 INFO L93 Difference]: Finished difference Result 8337 states and 12846 transitions. [2022-10-15 17:49:20,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:49:20,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 110 [2022-10-15 17:49:20,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:20,265 INFO L225 Difference]: With dead ends: 8337 [2022-10-15 17:49:20,266 INFO L226 Difference]: Without dead ends: 8337 [2022-10-15 17:49:20,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:49:20,267 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 79 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:20,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 405 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:20,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8337 states. [2022-10-15 17:49:20,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8337 to 7113. [2022-10-15 17:49:20,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7113 states, 5915 states have (on average 1.3144547759932375) internal successors, (7775), 6199 states have internal predecessors, (7775), 577 states have call successors, (577), 305 states have call predecessors, (577), 619 states have return successors, (2560), 672 states have call predecessors, (2560), 577 states have call successors, (2560) [2022-10-15 17:49:20,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7113 states to 7113 states and 10912 transitions. [2022-10-15 17:49:20,682 INFO L78 Accepts]: Start accepts. Automaton has 7113 states and 10912 transitions. Word has length 110 [2022-10-15 17:49:20,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:20,682 INFO L495 AbstractCegarLoop]: Abstraction has 7113 states and 10912 transitions. [2022-10-15 17:49:20,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:20,682 INFO L276 IsEmpty]: Start isEmpty. Operand 7113 states and 10912 transitions. [2022-10-15 17:49:20,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-15 17:49:20,707 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:20,708 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-10-15 17:49:20,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:20,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-15 17:49:20,922 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:20,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:20,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1762426831, now seen corresponding path program 1 times [2022-10-15 17:49:20,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:20,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726697943] [2022-10-15 17:49:20,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:20,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:20,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:49:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-15 17:49:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 17:49:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-15 17:49:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-15 17:49:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-15 17:49:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-15 17:49:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,070 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-15 17:49:21,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:21,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726697943] [2022-10-15 17:49:21,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726697943] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:21,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033119948] [2022-10-15 17:49:21,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:21,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:21,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:21,072 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) [2022-10-15 17:49:21,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-15 17:49:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:49:21,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:21,197 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-15 17:49:21,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:21,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033119948] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:21,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:21,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-10-15 17:49:21,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651327706] [2022-10-15 17:49:21,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:21,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:21,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:21,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:21,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:21,199 INFO L87 Difference]: Start difference. First operand 7113 states and 10912 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:21,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:21,257 INFO L93 Difference]: Finished difference Result 7777 states and 12004 transitions. [2022-10-15 17:49:21,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:21,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 113 [2022-10-15 17:49:21,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:21,288 INFO L225 Difference]: With dead ends: 7777 [2022-10-15 17:49:21,288 INFO L226 Difference]: Without dead ends: 7777 [2022-10-15 17:49:21,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:21,290 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 21 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:21,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 292 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:21,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7777 states. [2022-10-15 17:49:21,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7777 to 7777. [2022-10-15 17:49:21,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7777 states, 6363 states have (on average 1.3017444601603017) internal successors, (8283), 6647 states have internal predecessors, (8283), 721 states have call successors, (721), 377 states have call predecessors, (721), 691 states have return successors, (3000), 816 states have call predecessors, (3000), 721 states have call successors, (3000) [2022-10-15 17:49:21,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7777 states to 7777 states and 12004 transitions. [2022-10-15 17:49:21,630 INFO L78 Accepts]: Start accepts. Automaton has 7777 states and 12004 transitions. Word has length 113 [2022-10-15 17:49:21,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:21,631 INFO L495 AbstractCegarLoop]: Abstraction has 7777 states and 12004 transitions. [2022-10-15 17:49:21,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:21,631 INFO L276 IsEmpty]: Start isEmpty. Operand 7777 states and 12004 transitions. [2022-10-15 17:49:21,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-15 17:49:21,660 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:21,660 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-10-15 17:49:21,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:21,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-15 17:49:21,874 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:21,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:21,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1176150609, now seen corresponding path program 1 times [2022-10-15 17:49:21,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:21,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306928281] [2022-10-15 17:49:21,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:21,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:49:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-15 17:49:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 17:49:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:22,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-15 17:49:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:22,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-15 17:49:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:22,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-15 17:49:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:22,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-15 17:49:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:22,014 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-15 17:49:22,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:22,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306928281] [2022-10-15 17:49:22,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306928281] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:22,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264831617] [2022-10-15 17:49:22,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:22,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:22,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:22,016 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:22,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-15 17:49:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:22,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:49:22,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:22,243 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:22,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:22,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264831617] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:22,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:22,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-10-15 17:49:22,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814451902] [2022-10-15 17:49:22,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:22,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:22,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:22,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:22,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:22,246 INFO L87 Difference]: Start difference. First operand 7777 states and 12004 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:22,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:22,586 INFO L93 Difference]: Finished difference Result 7928 states and 11766 transitions. [2022-10-15 17:49:22,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:49:22,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 113 [2022-10-15 17:49:22,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:22,621 INFO L225 Difference]: With dead ends: 7928 [2022-10-15 17:49:22,621 INFO L226 Difference]: Without dead ends: 7928 [2022-10-15 17:49:22,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:22,622 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 197 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:22,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 708 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:49:22,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7928 states. [2022-10-15 17:49:22,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7928 to 7921. [2022-10-15 17:49:22,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7921 states, 6471 states have (on average 1.2917632514294546) internal successors, (8359), 6791 states have internal predecessors, (8359), 721 states have call successors, (721), 377 states have call predecessors, (721), 727 states have return successors, (2680), 816 states have call predecessors, (2680), 721 states have call successors, (2680) [2022-10-15 17:49:23,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7921 states to 7921 states and 11760 transitions. [2022-10-15 17:49:23,012 INFO L78 Accepts]: Start accepts. Automaton has 7921 states and 11760 transitions. Word has length 113 [2022-10-15 17:49:23,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:23,012 INFO L495 AbstractCegarLoop]: Abstraction has 7921 states and 11760 transitions. [2022-10-15 17:49:23,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:23,013 INFO L276 IsEmpty]: Start isEmpty. Operand 7921 states and 11760 transitions. [2022-10-15 17:49:23,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-15 17:49:23,045 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:23,046 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2022-10-15 17:49:23,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:23,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:23,259 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:23,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:23,261 INFO L85 PathProgramCache]: Analyzing trace with hash 2130090767, now seen corresponding path program 1 times [2022-10-15 17:49:23,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:23,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386975692] [2022-10-15 17:49:23,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:23,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:49:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-15 17:49:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 17:49:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-15 17:49:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-15 17:49:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-15 17:49:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-15 17:49:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,421 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-15 17:49:23,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:23,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386975692] [2022-10-15 17:49:23,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386975692] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:23,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609127060] [2022-10-15 17:49:23,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:23,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:23,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:23,424 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:23,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-15 17:49:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 17:49:23,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:23,622 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-15 17:49:23,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:23,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609127060] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:23,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:23,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 9 [2022-10-15 17:49:23,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833601756] [2022-10-15 17:49:23,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:23,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:23,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:23,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:23,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:23,627 INFO L87 Difference]: Start difference. First operand 7921 states and 11760 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:23,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:23,837 INFO L93 Difference]: Finished difference Result 8785 states and 13182 transitions. [2022-10-15 17:49:23,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:49:23,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 113 [2022-10-15 17:49:23,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:23,889 INFO L225 Difference]: With dead ends: 8785 [2022-10-15 17:49:23,889 INFO L226 Difference]: Without dead ends: 8785 [2022-10-15 17:49:23,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:49:23,891 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 86 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:23,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 326 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:23,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8785 states. [2022-10-15 17:49:24,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8785 to 7921. [2022-10-15 17:49:24,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7921 states, 6471 states have (on average 1.2905269664657704) internal successors, (8351), 6791 states have internal predecessors, (8351), 721 states have call successors, (721), 377 states have call predecessors, (721), 727 states have return successors, (2680), 816 states have call predecessors, (2680), 721 states have call successors, (2680) [2022-10-15 17:49:24,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7921 states to 7921 states and 11752 transitions. [2022-10-15 17:49:24,371 INFO L78 Accepts]: Start accepts. Automaton has 7921 states and 11752 transitions. Word has length 113 [2022-10-15 17:49:24,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:24,372 INFO L495 AbstractCegarLoop]: Abstraction has 7921 states and 11752 transitions. [2022-10-15 17:49:24,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:24,372 INFO L276 IsEmpty]: Start isEmpty. Operand 7921 states and 11752 transitions. [2022-10-15 17:49:24,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-15 17:49:24,402 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:24,403 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-10-15 17:49:24,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:24,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:24,617 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:24,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:24,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1496302110, now seen corresponding path program 1 times [2022-10-15 17:49:24,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:24,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802732182] [2022-10-15 17:49:24,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:24,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 17:49:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 17:49:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 17:49:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 17:49:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-15 17:49:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-15 17:49:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-15 17:49:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,789 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 17:49:24,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:24,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802732182] [2022-10-15 17:49:24,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802732182] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:24,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662247183] [2022-10-15 17:49:24,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:24,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:24,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:24,791 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:24,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-15 17:49:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:49:24,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-15 17:49:24,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:24,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662247183] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:24,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:24,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-10-15 17:49:24,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423046206] [2022-10-15 17:49:24,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:24,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:24,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:24,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:24,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:49:24,926 INFO L87 Difference]: Start difference. First operand 7921 states and 11752 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:24,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:24,978 INFO L93 Difference]: Finished difference Result 8921 states and 13243 transitions. [2022-10-15 17:49:24,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:24,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 116 [2022-10-15 17:49:24,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:25,026 INFO L225 Difference]: With dead ends: 8921 [2022-10-15 17:49:25,027 INFO L226 Difference]: Without dead ends: 8921 [2022-10-15 17:49:25,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:49:25,028 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 23 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:25,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 292 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:25,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8921 states. [2022-10-15 17:49:25,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8921 to 8921. [2022-10-15 17:49:25,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8921 states, 7147 states have (on average 1.2718623198544845) internal successors, (9090), 7467 states have internal predecessors, (9090), 937 states have call successors, (937), 485 states have call predecessors, (937), 835 states have return successors, (3216), 1032 states have call predecessors, (3216), 937 states have call successors, (3216) [2022-10-15 17:49:25,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8921 states to 8921 states and 13243 transitions. [2022-10-15 17:49:25,400 INFO L78 Accepts]: Start accepts. Automaton has 8921 states and 13243 transitions. Word has length 116 [2022-10-15 17:49:25,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:25,401 INFO L495 AbstractCegarLoop]: Abstraction has 8921 states and 13243 transitions. [2022-10-15 17:49:25,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:25,401 INFO L276 IsEmpty]: Start isEmpty. Operand 8921 states and 13243 transitions. [2022-10-15 17:49:25,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-15 17:49:25,440 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:25,441 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-10-15 17:49:25,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:25,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-10-15 17:49:25,655 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:25,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:25,656 INFO L85 PathProgramCache]: Analyzing trace with hash -462272676, now seen corresponding path program 1 times [2022-10-15 17:49:25,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:25,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476303460] [2022-10-15 17:49:25,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:25,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:25,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:25,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:25,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:25,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 17:49:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:25,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 17:49:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:25,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 17:49:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:25,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 17:49:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:25,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-15 17:49:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:25,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-15 17:49:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:25,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-15 17:49:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:25,831 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 17:49:25,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:25,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476303460] [2022-10-15 17:49:25,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476303460] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:25,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247212045] [2022-10-15 17:49:25,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:25,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:25,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:25,833 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:25,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-15 17:49:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:25,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:49:25,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:26,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:26,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247212045] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:26,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:26,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2022-10-15 17:49:26,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816455517] [2022-10-15 17:49:26,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:26,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:26,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:26,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:26,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:49:26,033 INFO L87 Difference]: Start difference. First operand 8921 states and 13243 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:26,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:26,230 INFO L93 Difference]: Finished difference Result 9090 states and 13002 transitions. [2022-10-15 17:49:26,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:49:26,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 116 [2022-10-15 17:49:26,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:26,270 INFO L225 Difference]: With dead ends: 9090 [2022-10-15 17:49:26,270 INFO L226 Difference]: Without dead ends: 9090 [2022-10-15 17:49:26,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:49:26,273 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 193 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:26,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 680 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:26,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9090 states. [2022-10-15 17:49:26,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9090 to 9083. [2022-10-15 17:49:26,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9083 states, 7255 states have (on average 1.2596829772570641) internal successors, (9139), 7629 states have internal predecessors, (9139), 937 states have call successors, (937), 485 states have call predecessors, (937), 889 states have return successors, (2920), 1032 states have call predecessors, (2920), 937 states have call successors, (2920) [2022-10-15 17:49:26,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9083 states to 9083 states and 12996 transitions. [2022-10-15 17:49:26,719 INFO L78 Accepts]: Start accepts. Automaton has 9083 states and 12996 transitions. Word has length 116 [2022-10-15 17:49:26,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:26,719 INFO L495 AbstractCegarLoop]: Abstraction has 9083 states and 12996 transitions. [2022-10-15 17:49:26,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:26,720 INFO L276 IsEmpty]: Start isEmpty. Operand 9083 states and 12996 transitions. [2022-10-15 17:49:26,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-15 17:49:26,757 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:26,757 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-10-15 17:49:26,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:26,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-15 17:49:26,973 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:26,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:26,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1678426402, now seen corresponding path program 1 times [2022-10-15 17:49:26,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:26,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216076406] [2022-10-15 17:49:26,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:26,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 17:49:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 17:49:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 17:49:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 17:49:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-15 17:49:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-15 17:49:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-15 17:49:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,114 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 17:49:27,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:27,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216076406] [2022-10-15 17:49:27,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216076406] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:27,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389121353] [2022-10-15 17:49:27,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:27,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:27,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:27,116 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:27,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-15 17:49:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 17:49:27,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:27,288 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-15 17:49:27,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:27,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389121353] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:27,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:27,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2022-10-15 17:49:27,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407215816] [2022-10-15 17:49:27,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:27,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:27,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:27,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:27,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:27,291 INFO L87 Difference]: Start difference. First operand 9083 states and 12996 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:27,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:27,402 INFO L93 Difference]: Finished difference Result 5907 states and 8421 transitions. [2022-10-15 17:49:27,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:49:27,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 116 [2022-10-15 17:49:27,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:27,425 INFO L225 Difference]: With dead ends: 5907 [2022-10-15 17:49:27,426 INFO L226 Difference]: Without dead ends: 5907 [2022-10-15 17:49:27,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:49:27,427 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 96 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:27,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 472 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:27,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5907 states. [2022-10-15 17:49:27,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5907 to 5811. [2022-10-15 17:49:27,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5811 states, 4618 states have (on average 1.2607189259419662) internal successors, (5822), 4873 states have internal predecessors, (5822), 609 states have call successors, (609), 313 states have call predecessors, (609), 582 states have return successors, (1854), 656 states have call predecessors, (1854), 609 states have call successors, (1854) [2022-10-15 17:49:27,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5811 states to 5811 states and 8285 transitions. [2022-10-15 17:49:27,667 INFO L78 Accepts]: Start accepts. Automaton has 5811 states and 8285 transitions. Word has length 116 [2022-10-15 17:49:27,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:27,667 INFO L495 AbstractCegarLoop]: Abstraction has 5811 states and 8285 transitions. [2022-10-15 17:49:27,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 17:49:27,668 INFO L276 IsEmpty]: Start isEmpty. Operand 5811 states and 8285 transitions. [2022-10-15 17:49:27,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-15 17:49:27,693 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:27,693 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-10-15 17:49:27,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:27,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:27,907 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:27,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:27,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1158134556, now seen corresponding path program 1 times [2022-10-15 17:49:27,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:27,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360659888] [2022-10-15 17:49:27,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:27,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:28,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:28,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:28,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:28,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 17:49:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:28,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 17:49:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:28,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 17:49:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:28,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 17:49:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:28,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-15 17:49:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:28,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-15 17:49:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:28,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-15 17:49:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:28,086 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-15 17:49:28,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:28,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360659888] [2022-10-15 17:49:28,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360659888] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:28,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050167856] [2022-10-15 17:49:28,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:28,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:28,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:28,089 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:28,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-15 17:49:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:28,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 17:49:28,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:28,338 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-15 17:49:28,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:28,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050167856] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:28,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:28,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-10-15 17:49:28,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871901890] [2022-10-15 17:49:28,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:28,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:28,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:28,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:28,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:28,340 INFO L87 Difference]: Start difference. First operand 5811 states and 8285 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:28,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:28,453 INFO L93 Difference]: Finished difference Result 5499 states and 7531 transitions. [2022-10-15 17:49:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:49:28,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 116 [2022-10-15 17:49:28,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:28,475 INFO L225 Difference]: With dead ends: 5499 [2022-10-15 17:49:28,475 INFO L226 Difference]: Without dead ends: 5499 [2022-10-15 17:49:28,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:49:28,477 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 2 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:28,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 458 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:28,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5499 states. [2022-10-15 17:49:28,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5499 to 5499. [2022-10-15 17:49:28,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 4462 states have (on average 1.2644554011653968) internal successors, (5642), 4701 states have internal predecessors, (5642), 469 states have call successors, (469), 313 states have call predecessors, (469), 566 states have return successors, (1420), 500 states have call predecessors, (1420), 469 states have call successors, (1420) [2022-10-15 17:49:28,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 7531 transitions. [2022-10-15 17:49:28,760 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 7531 transitions. Word has length 116 [2022-10-15 17:49:28,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:28,760 INFO L495 AbstractCegarLoop]: Abstraction has 5499 states and 7531 transitions. [2022-10-15 17:49:28,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 17:49:28,760 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 7531 transitions. [2022-10-15 17:49:28,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-10-15 17:49:28,775 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:28,776 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-15 17:49:28,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:28,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:28,989 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:28,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:28,990 INFO L85 PathProgramCache]: Analyzing trace with hash -2037072072, now seen corresponding path program 1 times [2022-10-15 17:49:28,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:28,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714208126] [2022-10-15 17:49:28,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:28,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:29,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:29,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:29,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:29,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:29,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:29,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-15 17:49:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:29,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-15 17:49:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:29,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-15 17:49:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:29,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-15 17:49:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:29,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-15 17:49:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:29,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-15 17:49:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:29,227 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-15 17:49:29,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:29,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714208126] [2022-10-15 17:49:29,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714208126] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:29,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519706152] [2022-10-15 17:49:29,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:29,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:29,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:29,230 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:29,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-15 17:49:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:29,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:49:29,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:29,374 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:29,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:29,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519706152] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:29,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:29,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-10-15 17:49:29,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516675008] [2022-10-15 17:49:29,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:29,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:29,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:29,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:29,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:49:29,382 INFO L87 Difference]: Start difference. First operand 5499 states and 7531 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 17:49:29,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:29,442 INFO L93 Difference]: Finished difference Result 6442 states and 9784 transitions. [2022-10-15 17:49:29,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:29,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 131 [2022-10-15 17:49:29,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:29,470 INFO L225 Difference]: With dead ends: 6442 [2022-10-15 17:49:29,470 INFO L226 Difference]: Without dead ends: 6442 [2022-10-15 17:49:29,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:49:29,471 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 29 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:29,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 308 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:29,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6442 states. [2022-10-15 17:49:29,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6442 to 5547. [2022-10-15 17:49:29,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5547 states, 4510 states have (on average 1.2616407982261642) internal successors, (5690), 4749 states have internal predecessors, (5690), 469 states have call successors, (469), 313 states have call predecessors, (469), 566 states have return successors, (1420), 500 states have call predecessors, (1420), 469 states have call successors, (1420) [2022-10-15 17:49:29,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5547 states to 5547 states and 7579 transitions. [2022-10-15 17:49:29,674 INFO L78 Accepts]: Start accepts. Automaton has 5547 states and 7579 transitions. Word has length 131 [2022-10-15 17:49:29,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:29,675 INFO L495 AbstractCegarLoop]: Abstraction has 5547 states and 7579 transitions. [2022-10-15 17:49:29,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 17:49:29,675 INFO L276 IsEmpty]: Start isEmpty. Operand 5547 states and 7579 transitions. [2022-10-15 17:49:29,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-15 17:49:29,690 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:29,690 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-15 17:49:29,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:29,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-10-15 17:49:29,904 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:29,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:29,905 INFO L85 PathProgramCache]: Analyzing trace with hash 769827941, now seen corresponding path program 1 times [2022-10-15 17:49:29,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:29,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991020245] [2022-10-15 17:49:29,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:29,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-15 17:49:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-15 17:49:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-15 17:49:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-15 17:49:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-15 17:49:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-15 17:49:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,116 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-15 17:49:30,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:30,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991020245] [2022-10-15 17:49:30,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991020245] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:30,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349566044] [2022-10-15 17:49:30,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:30,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:30,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:30,121 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:30,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-15 17:49:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:49:30,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:30,280 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:30,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:30,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349566044] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:30,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:30,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-10-15 17:49:30,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697015776] [2022-10-15 17:49:30,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:30,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:30,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:30,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:30,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:49:30,284 INFO L87 Difference]: Start difference. First operand 5547 states and 7579 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 17:49:30,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:30,352 INFO L93 Difference]: Finished difference Result 6426 states and 9704 transitions. [2022-10-15 17:49:30,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:30,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 132 [2022-10-15 17:49:30,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:30,389 INFO L225 Difference]: With dead ends: 6426 [2022-10-15 17:49:30,389 INFO L226 Difference]: Without dead ends: 6426 [2022-10-15 17:49:30,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:49:30,391 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 33 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:30,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 319 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:30,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6426 states. [2022-10-15 17:49:30,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6426 to 5547. [2022-10-15 17:49:30,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5547 states, 4510 states have (on average 1.2509977827050998) internal successors, (5642), 4749 states have internal predecessors, (5642), 469 states have call successors, (469), 313 states have call predecessors, (469), 566 states have return successors, (1420), 500 states have call predecessors, (1420), 469 states have call successors, (1420) [2022-10-15 17:49:30,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5547 states to 5547 states and 7531 transitions. [2022-10-15 17:49:30,651 INFO L78 Accepts]: Start accepts. Automaton has 5547 states and 7531 transitions. Word has length 132 [2022-10-15 17:49:30,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:30,651 INFO L495 AbstractCegarLoop]: Abstraction has 5547 states and 7531 transitions. [2022-10-15 17:49:30,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 17:49:30,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5547 states and 7531 transitions. [2022-10-15 17:49:30,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-15 17:49:30,669 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:30,671 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-15 17:49:30,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:30,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-15 17:49:30,885 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:30,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:30,886 INFO L85 PathProgramCache]: Analyzing trace with hash -697474442, now seen corresponding path program 1 times [2022-10-15 17:49:30,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:30,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323985756] [2022-10-15 17:49:30,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:30,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:31,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:31,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:31,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:31,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:31,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:31,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-15 17:49:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:31,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-15 17:49:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:31,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-15 17:49:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:31,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-15 17:49:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:31,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-15 17:49:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:31,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-15 17:49:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:31,162 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-15 17:49:31,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:31,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323985756] [2022-10-15 17:49:31,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323985756] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:31,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256332726] [2022-10-15 17:49:31,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:31,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:31,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:31,166 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:31,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-15 17:49:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:31,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:49:31,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:31,443 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:31,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:31,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256332726] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:31,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:31,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-10-15 17:49:31,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618211271] [2022-10-15 17:49:31,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:31,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:31,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:31,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:31,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:49:31,446 INFO L87 Difference]: Start difference. First operand 5547 states and 7531 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 17:49:31,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:31,515 INFO L93 Difference]: Finished difference Result 5547 states and 7515 transitions. [2022-10-15 17:49:31,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:49:31,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 132 [2022-10-15 17:49:31,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:31,539 INFO L225 Difference]: With dead ends: 5547 [2022-10-15 17:49:31,539 INFO L226 Difference]: Without dead ends: 5547 [2022-10-15 17:49:31,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:49:31,540 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 261 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:31,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 148 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:31,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2022-10-15 17:49:31,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 5547. [2022-10-15 17:49:31,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5547 states, 4510 states have (on average 1.247450110864745) internal successors, (5626), 4749 states have internal predecessors, (5626), 469 states have call successors, (469), 313 states have call predecessors, (469), 566 states have return successors, (1420), 500 states have call predecessors, (1420), 469 states have call successors, (1420) [2022-10-15 17:49:31,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5547 states to 5547 states and 7515 transitions. [2022-10-15 17:49:31,756 INFO L78 Accepts]: Start accepts. Automaton has 5547 states and 7515 transitions. Word has length 132 [2022-10-15 17:49:31,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:31,757 INFO L495 AbstractCegarLoop]: Abstraction has 5547 states and 7515 transitions. [2022-10-15 17:49:31,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 17:49:31,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5547 states and 7515 transitions. [2022-10-15 17:49:31,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:49:31,775 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:31,777 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-15 17:49:31,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:31,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-15 17:49:31,993 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:31,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:31,994 INFO L85 PathProgramCache]: Analyzing trace with hash -467599293, now seen corresponding path program 1 times [2022-10-15 17:49:31,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:31,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573744867] [2022-10-15 17:49:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:31,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-15 17:49:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-15 17:49:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-15 17:49:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-15 17:49:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 17:49:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 17:49:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,305 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-15 17:49:32,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:32,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573744867] [2022-10-15 17:49:32,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573744867] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:32,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158645096] [2022-10-15 17:49:32,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:32,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:32,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:32,308 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:32,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-15 17:49:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:49:32,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:32,443 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:32,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:32,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158645096] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:32,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:32,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-10-15 17:49:32,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779855325] [2022-10-15 17:49:32,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:32,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:32,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:32,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:32,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:32,446 INFO L87 Difference]: Start difference. First operand 5547 states and 7515 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 17:49:32,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:32,502 INFO L93 Difference]: Finished difference Result 6586 states and 9896 transitions. [2022-10-15 17:49:32,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:32,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 133 [2022-10-15 17:49:32,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:32,532 INFO L225 Difference]: With dead ends: 6586 [2022-10-15 17:49:32,532 INFO L226 Difference]: Without dead ends: 6586 [2022-10-15 17:49:32,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:32,533 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 37 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:32,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 314 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:32,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6586 states. [2022-10-15 17:49:32,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6586 to 5659. [2022-10-15 17:49:32,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5659 states, 4622 states have (on average 1.2483773258329727) internal successors, (5770), 4861 states have internal predecessors, (5770), 469 states have call successors, (469), 313 states have call predecessors, (469), 566 states have return successors, (1420), 500 states have call predecessors, (1420), 469 states have call successors, (1420) [2022-10-15 17:49:32,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5659 states to 5659 states and 7659 transitions. [2022-10-15 17:49:32,780 INFO L78 Accepts]: Start accepts. Automaton has 5659 states and 7659 transitions. Word has length 133 [2022-10-15 17:49:32,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:32,780 INFO L495 AbstractCegarLoop]: Abstraction has 5659 states and 7659 transitions. [2022-10-15 17:49:32,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 17:49:32,781 INFO L276 IsEmpty]: Start isEmpty. Operand 5659 states and 7659 transitions. [2022-10-15 17:49:32,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:49:32,799 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:32,799 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-15 17:49:32,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-10-15 17:49:33,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-15 17:49:33,012 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:33,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:33,013 INFO L85 PathProgramCache]: Analyzing trace with hash -960225467, now seen corresponding path program 1 times [2022-10-15 17:49:33,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:33,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868276025] [2022-10-15 17:49:33,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:33,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:33,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:33,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:33,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:33,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:33,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:33,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-15 17:49:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:33,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-15 17:49:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:33,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-15 17:49:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:33,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-15 17:49:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:33,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 17:49:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:33,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 17:49:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-15 17:49:33,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:33,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868276025] [2022-10-15 17:49:33,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868276025] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:33,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084809430] [2022-10-15 17:49:33,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:33,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:33,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:33,350 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:33,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-10-15 17:49:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:33,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:49:33,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:33,665 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:33,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:33,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084809430] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:33,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:33,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2022-10-15 17:49:33,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025161574] [2022-10-15 17:49:33,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:33,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:33,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:33,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:33,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:33,673 INFO L87 Difference]: Start difference. First operand 5659 states and 7659 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 17:49:33,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:33,731 INFO L93 Difference]: Finished difference Result 5659 states and 7627 transitions. [2022-10-15 17:49:33,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:49:33,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 133 [2022-10-15 17:49:33,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:33,760 INFO L225 Difference]: With dead ends: 5659 [2022-10-15 17:49:33,760 INFO L226 Difference]: Without dead ends: 5659 [2022-10-15 17:49:33,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:33,770 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 148 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:33,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 174 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:33,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5659 states. [2022-10-15 17:49:33,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5659 to 5659. [2022-10-15 17:49:33,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5659 states, 4622 states have (on average 1.2414539160536564) internal successors, (5738), 4861 states have internal predecessors, (5738), 469 states have call successors, (469), 313 states have call predecessors, (469), 566 states have return successors, (1420), 500 states have call predecessors, (1420), 469 states have call successors, (1420) [2022-10-15 17:49:34,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5659 states to 5659 states and 7627 transitions. [2022-10-15 17:49:34,008 INFO L78 Accepts]: Start accepts. Automaton has 5659 states and 7627 transitions. Word has length 133 [2022-10-15 17:49:34,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:34,009 INFO L495 AbstractCegarLoop]: Abstraction has 5659 states and 7627 transitions. [2022-10-15 17:49:34,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 17:49:34,010 INFO L276 IsEmpty]: Start isEmpty. Operand 5659 states and 7627 transitions. [2022-10-15 17:49:34,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-10-15 17:49:34,030 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:34,031 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-15 17:49:34,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:34,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-15 17:49:34,246 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:34,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:34,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1815673016, now seen corresponding path program 1 times [2022-10-15 17:49:34,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:34,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905149973] [2022-10-15 17:49:34,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:34,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 17:49:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-15 17:49:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 17:49:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-15 17:49:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-15 17:49:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-15 17:49:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,495 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-15 17:49:34,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:34,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905149973] [2022-10-15 17:49:34,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905149973] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:34,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916590118] [2022-10-15 17:49:34,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:34,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:34,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:34,498 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:34,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-10-15 17:49:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:49:34,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:34,758 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:34,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:34,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916590118] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:34,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:34,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2022-10-15 17:49:34,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211813990] [2022-10-15 17:49:34,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:34,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:34,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:34,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:34,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:34,761 INFO L87 Difference]: Start difference. First operand 5659 states and 7627 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 17:49:34,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:34,811 INFO L93 Difference]: Finished difference Result 5547 states and 7467 transitions. [2022-10-15 17:49:34,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:49:34,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 134 [2022-10-15 17:49:34,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:34,837 INFO L225 Difference]: With dead ends: 5547 [2022-10-15 17:49:34,837 INFO L226 Difference]: Without dead ends: 5547 [2022-10-15 17:49:34,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:34,838 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 211 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:34,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 147 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:34,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2022-10-15 17:49:34,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 5547. [2022-10-15 17:49:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5547 states, 4510 states have (on average 1.2368070953436807) internal successors, (5578), 4749 states have internal predecessors, (5578), 469 states have call successors, (469), 313 states have call predecessors, (469), 566 states have return successors, (1420), 500 states have call predecessors, (1420), 469 states have call successors, (1420) [2022-10-15 17:49:34,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5547 states to 5547 states and 7467 transitions. [2022-10-15 17:49:34,987 INFO L78 Accepts]: Start accepts. Automaton has 5547 states and 7467 transitions. Word has length 134 [2022-10-15 17:49:34,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:34,988 INFO L495 AbstractCegarLoop]: Abstraction has 5547 states and 7467 transitions. [2022-10-15 17:49:34,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 17:49:34,988 INFO L276 IsEmpty]: Start isEmpty. Operand 5547 states and 7467 transitions. [2022-10-15 17:49:35,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-15 17:49:35,004 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:35,004 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-15 17:49:35,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:35,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:35,219 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:35,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:35,220 INFO L85 PathProgramCache]: Analyzing trace with hash -159970845, now seen corresponding path program 1 times [2022-10-15 17:49:35,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:35,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062668839] [2022-10-15 17:49:35,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:35,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-15 17:49:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-15 17:49:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-15 17:49:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-15 17:49:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-10-15 17:49:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-15 17:49:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,415 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-15 17:49:35,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:35,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062668839] [2022-10-15 17:49:35,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062668839] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:35,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:35,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:49:35,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913187885] [2022-10-15 17:49:35,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:35,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:49:35,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:35,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:49:35,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:49:35,418 INFO L87 Difference]: Start difference. First operand 5547 states and 7467 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 17:49:35,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:35,896 INFO L93 Difference]: Finished difference Result 6826 states and 10208 transitions. [2022-10-15 17:49:35,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 17:49:35,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 135 [2022-10-15 17:49:35,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:35,934 INFO L225 Difference]: With dead ends: 6826 [2022-10-15 17:49:35,934 INFO L226 Difference]: Without dead ends: 6826 [2022-10-15 17:49:35,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:49:35,936 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 225 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:35,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 422 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 17:49:35,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6826 states. [2022-10-15 17:49:36,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6826 to 5659. [2022-10-15 17:49:36,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5659 states, 4606 states have (on average 1.2318714719930526) internal successors, (5674), 4861 states have internal predecessors, (5674), 469 states have call successors, (469), 313 states have call predecessors, (469), 582 states have return successors, (1428), 500 states have call predecessors, (1428), 469 states have call successors, (1428) [2022-10-15 17:49:36,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5659 states to 5659 states and 7571 transitions. [2022-10-15 17:49:36,142 INFO L78 Accepts]: Start accepts. Automaton has 5659 states and 7571 transitions. Word has length 135 [2022-10-15 17:49:36,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:36,143 INFO L495 AbstractCegarLoop]: Abstraction has 5659 states and 7571 transitions. [2022-10-15 17:49:36,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 17:49:36,143 INFO L276 IsEmpty]: Start isEmpty. Operand 5659 states and 7571 transitions. [2022-10-15 17:49:36,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-15 17:49:36,159 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:36,159 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-15 17:49:36,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-10-15 17:49:36,160 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:36,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:36,161 INFO L85 PathProgramCache]: Analyzing trace with hash -105577947, now seen corresponding path program 1 times [2022-10-15 17:49:36,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:36,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479509498] [2022-10-15 17:49:36,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:36,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:36,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:36,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:36,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:36,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:36,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:36,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-15 17:49:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:36,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-15 17:49:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-15 17:49:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:36,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-15 17:49:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:36,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-10-15 17:49:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:36,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-15 17:49:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:36,357 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-15 17:49:36,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:36,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479509498] [2022-10-15 17:49:36,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479509498] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:36,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:36,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:49:36,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114159098] [2022-10-15 17:49:36,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:36,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:49:36,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:36,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:49:36,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:49:36,361 INFO L87 Difference]: Start difference. First operand 5659 states and 7571 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 17:49:37,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:37,043 INFO L93 Difference]: Finished difference Result 7943 states and 11211 transitions. [2022-10-15 17:49:37,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 17:49:37,044 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 135 [2022-10-15 17:49:37,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:37,075 INFO L225 Difference]: With dead ends: 7943 [2022-10-15 17:49:37,075 INFO L226 Difference]: Without dead ends: 7943 [2022-10-15 17:49:37,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2022-10-15 17:49:37,076 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 312 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:37,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 463 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 17:49:37,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7943 states. [2022-10-15 17:49:37,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7943 to 7207. [2022-10-15 17:49:37,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7207 states, 5966 states have (on average 1.2460610124036204) internal successors, (7434), 6329 states have internal predecessors, (7434), 517 states have call successors, (517), 361 states have call predecessors, (517), 722 states have return successors, (2244), 532 states have call predecessors, (2244), 517 states have call successors, (2244) [2022-10-15 17:49:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7207 states to 7207 states and 10195 transitions. [2022-10-15 17:49:37,330 INFO L78 Accepts]: Start accepts. Automaton has 7207 states and 10195 transitions. Word has length 135 [2022-10-15 17:49:37,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:37,330 INFO L495 AbstractCegarLoop]: Abstraction has 7207 states and 10195 transitions. [2022-10-15 17:49:37,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 17:49:37,330 INFO L276 IsEmpty]: Start isEmpty. Operand 7207 states and 10195 transitions. [2022-10-15 17:49:37,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-15 17:49:37,345 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:37,345 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-15 17:49:37,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-10-15 17:49:37,346 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:37,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:37,346 INFO L85 PathProgramCache]: Analyzing trace with hash 850964729, now seen corresponding path program 1 times [2022-10-15 17:49:37,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:37,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767191141] [2022-10-15 17:49:37,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:37,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-15 17:49:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-15 17:49:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-15 17:49:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-15 17:49:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-15 17:49:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-15 17:49:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,554 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-10-15 17:49:37,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:37,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767191141] [2022-10-15 17:49:37,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767191141] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:37,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068417484] [2022-10-15 17:49:37,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:37,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:37,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:37,558 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:37,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-10-15 17:49:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 17:49:37,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:37,805 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 17:49:37,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:49:38,029 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:49:38,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068417484] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:49:38,030 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:49:38,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2022-10-15 17:49:38,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298980267] [2022-10-15 17:49:38,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:49:38,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 17:49:38,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:38,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 17:49:38,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:38,032 INFO L87 Difference]: Start difference. First operand 7207 states and 10195 transitions. Second operand has 13 states, 13 states have (on average 16.0) internal successors, (208), 10 states have internal predecessors, (208), 5 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2022-10-15 17:49:39,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:39,990 INFO L93 Difference]: Finished difference Result 12292 states and 16401 transitions. [2022-10-15 17:49:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-15 17:49:39,990 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 16.0) internal successors, (208), 10 states have internal predecessors, (208), 5 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) Word has length 138 [2022-10-15 17:49:39,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:40,082 INFO L225 Difference]: With dead ends: 12292 [2022-10-15 17:49:40,082 INFO L226 Difference]: Without dead ends: 12292 [2022-10-15 17:49:40,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 308 SyntacticMatches, 6 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=473, Invalid=1689, Unknown=0, NotChecked=0, Total=2162 [2022-10-15 17:49:40,084 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 1520 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:40,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 443 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-15 17:49:40,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12292 states. [2022-10-15 17:49:40,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12292 to 11212. [2022-10-15 17:49:40,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11212 states, 9487 states have (on average 1.2228312427532413) internal successors, (11601), 9980 states have internal predecessors, (11601), 675 states have call successors, (675), 565 states have call predecessors, (675), 1048 states have return successors, (2589), 674 states have call predecessors, (2589), 675 states have call successors, (2589) [2022-10-15 17:49:40,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11212 states to 11212 states and 14865 transitions. [2022-10-15 17:49:40,422 INFO L78 Accepts]: Start accepts. Automaton has 11212 states and 14865 transitions. Word has length 138 [2022-10-15 17:49:40,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:40,422 INFO L495 AbstractCegarLoop]: Abstraction has 11212 states and 14865 transitions. [2022-10-15 17:49:40,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 16.0) internal successors, (208), 10 states have internal predecessors, (208), 5 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2022-10-15 17:49:40,423 INFO L276 IsEmpty]: Start isEmpty. Operand 11212 states and 14865 transitions. [2022-10-15 17:49:40,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-15 17:49:40,436 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:40,437 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-15 17:49:40,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:40,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-10-15 17:49:40,652 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:40,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:40,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1167569223, now seen corresponding path program 1 times [2022-10-15 17:49:40,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:40,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531853132] [2022-10-15 17:49:40,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:40,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:40,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:40,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:40,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:40,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:40,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:40,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-15 17:49:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:40,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-15 17:49:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:40,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-15 17:49:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:40,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-15 17:49:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:40,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-15 17:49:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:40,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-15 17:49:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:40,888 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-15 17:49:40,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:40,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531853132] [2022-10-15 17:49:40,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531853132] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:40,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383996265] [2022-10-15 17:49:40,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:40,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:40,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:40,890 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:40,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-10-15 17:49:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:49:41,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:41,134 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:41,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:41,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383996265] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:41,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:41,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2022-10-15 17:49:41,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205764383] [2022-10-15 17:49:41,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:41,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:41,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:41,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:41,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:41,137 INFO L87 Difference]: Start difference. First operand 11212 states and 14865 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 17:49:41,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:41,195 INFO L93 Difference]: Finished difference Result 3442 states and 4369 transitions. [2022-10-15 17:49:41,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:49:41,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 138 [2022-10-15 17:49:41,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:41,206 INFO L225 Difference]: With dead ends: 3442 [2022-10-15 17:49:41,207 INFO L226 Difference]: Without dead ends: 3442 [2022-10-15 17:49:41,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:49:41,208 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 286 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:41,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 159 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:41,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2022-10-15 17:49:41,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3442. [2022-10-15 17:49:41,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 2856 states have (on average 1.1859243697478992) internal successors, (3387), 3002 states have internal predecessors, (3387), 259 states have call successors, (259), 181 states have call predecessors, (259), 326 states have return successors, (723), 266 states have call predecessors, (723), 259 states have call successors, (723) [2022-10-15 17:49:41,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 4369 transitions. [2022-10-15 17:49:41,294 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 4369 transitions. Word has length 138 [2022-10-15 17:49:41,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:41,295 INFO L495 AbstractCegarLoop]: Abstraction has 3442 states and 4369 transitions. [2022-10-15 17:49:41,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 17:49:41,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 4369 transitions. [2022-10-15 17:49:41,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-10-15 17:49:41,300 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:41,301 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-15 17:49:41,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:41,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:41,517 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:41,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:41,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2054761057, now seen corresponding path program 1 times [2022-10-15 17:49:41,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:41,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556668556] [2022-10-15 17:49:41,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:41,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 17:49:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 17:49:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 17:49:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-15 17:49:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-15 17:49:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-15 17:49:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-15 17:49:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-15 17:49:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-15 17:49:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,651 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-15 17:49:41,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:41,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556668556] [2022-10-15 17:49:41,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556668556] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:41,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:41,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:49:41,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048523330] [2022-10-15 17:49:41,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:41,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:49:41,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:41,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:49:41,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:41,654 INFO L87 Difference]: Start difference. First operand 3442 states and 4369 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-15 17:49:41,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:41,990 INFO L93 Difference]: Finished difference Result 3633 states and 4664 transitions. [2022-10-15 17:49:41,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:49:41,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 139 [2022-10-15 17:49:41,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:41,991 INFO L225 Difference]: With dead ends: 3633 [2022-10-15 17:49:41,991 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 17:49:41,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:49:41,992 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 192 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:41,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 198 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:49:41,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 17:49:41,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 17:49:41,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 17:49:41,994 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2022-10-15 17:49:41,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:41,994 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 17:49:41,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-15 17:49:41,994 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 17:49:41,994 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 17:49:41,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-15 17:49:41,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-15 17:49:41,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-10-15 17:49:42,003 INFO L444 BasicCegarLoop]: Path program histogram: [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] [2022-10-15 17:49:42,006 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 17:49:42,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 05:49:42 BoogieIcfgContainer [2022-10-15 17:49:42,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 17:49:42,010 INFO L158 Benchmark]: Toolchain (without parser) took 40789.23ms. Allocated memory was 151.0MB in the beginning and 1.1GB in the end (delta: 964.7MB). Free memory was 124.1MB in the beginning and 691.2MB in the end (delta: -567.1MB). Peak memory consumption was 398.3MB. Max. memory is 8.0GB. [2022-10-15 17:49:42,010 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory was 123.4MB in the beginning and 122.9MB in the end (delta: 435.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 17:49:42,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.88ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 111.2MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-15 17:49:42,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.47ms. Allocated memory is still 151.0MB. Free memory was 111.2MB in the beginning and 109.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 17:49:42,011 INFO L158 Benchmark]: Boogie Preprocessor took 77.47ms. Allocated memory is still 151.0MB. Free memory was 109.1MB in the beginning and 107.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 17:49:42,011 INFO L158 Benchmark]: RCFGBuilder took 830.92ms. Allocated memory is still 151.0MB. Free memory was 107.1MB in the beginning and 88.8MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-10-15 17:49:42,012 INFO L158 Benchmark]: TraceAbstraction took 39363.79ms. Allocated memory was 151.0MB in the beginning and 1.1GB in the end (delta: 964.7MB). Free memory was 88.2MB in the beginning and 691.2MB in the end (delta: -603.0MB). Peak memory consumption was 362.7MB. Max. memory is 8.0GB. [2022-10-15 17:49:42,016 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory was 123.4MB in the beginning and 122.9MB in the end (delta: 435.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 423.88ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 111.2MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 75.47ms. Allocated memory is still 151.0MB. Free memory was 111.2MB in the beginning and 109.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 77.47ms. Allocated memory is still 151.0MB. Free memory was 109.1MB in the beginning and 107.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 830.92ms. Allocated memory is still 151.0MB. Free memory was 107.1MB in the beginning and 88.8MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 39363.79ms. Allocated memory was 151.0MB in the beginning and 1.1GB in the end (delta: 964.7MB). Free memory was 88.2MB in the beginning and 691.2MB in the end (delta: -603.0MB). Peak memory consumption was 362.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 493]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 104 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 39.3s, OverallIterations: 35, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.8s, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6181 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6108 mSDsluCounter, 14721 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8785 mSDsCounter, 826 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4677 IncrementalHoareTripleChecker+Invalid, 5503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 826 mSolverCounterUnsat, 5936 mSDtfsCounter, 4677 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4625 GetRequests, 4248 SyntacticMatches, 6 SemanticMatches, 371 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 886 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11212occurred in iteration=33, InterpolantAutomatonStates: 229, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.3s AutomataMinimizationTime, 35 MinimizatonAttempts, 14475 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 7515 NumberOfCodeBlocks, 7459 NumberOfCodeBlocksAsserted, 66 NumberOfCheckSat, 7586 ConstructedInterpolants, 0 QuantifiedInterpolants, 16981 SizeOfPredicates, 12 NumberOfNonLiveVariables, 15929 ConjunctsInSsa, 147 ConjunctsInUnsatCore, 67 InterpolantComputations, 34 PerfectInterpolantSequences, 2290/2506 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-15 17:49:42,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...