/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/token_ring.04.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 04:21:55,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 04:21:55,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 04:21:55,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 04:21:55,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 04:21:55,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 04:21:55,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 04:21:55,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 04:21:55,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 04:21:55,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 04:21:55,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 04:21:55,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 04:21:55,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 04:21:55,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 04:21:55,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 04:21:55,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 04:21:55,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 04:21:55,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 04:21:55,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 04:21:55,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 04:21:55,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 04:21:55,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 04:21:55,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 04:21:55,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 04:21:55,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 04:21:55,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 04:21:55,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 04:21:55,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 04:21:55,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 04:21:55,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 04:21:55,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 04:21:55,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 04:21:55,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 04:21:55,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 04:21:55,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 04:21:55,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 04:21:55,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 04:21:55,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 04:21:55,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 04:21:55,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 04:21:55,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 04:21:55,788 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 04:21:55,841 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 04:21:55,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 04:21:55,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 04:21:55,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 04:21:55,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 04:21:55,843 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 04:21:55,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 04:21:55,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 04:21:55,846 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 04:21:55,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 04:21:55,848 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 04:21:55,848 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 04:21:55,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 04:21:55,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 04:21:55,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 04:21:55,849 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 04:21:55,849 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 04:21:55,849 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 04:21:55,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 04:21:55,849 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 04:21:55,850 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 04:21:55,850 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 04:21:55,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 04:21:55,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 04:21:55,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 04:21:55,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 04:21:55,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 04:21:55,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 04:21:55,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 04:21:55,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 04:21:55,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 04:21:56,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 04:21:56,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 04:21:56,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 04:21:56,267 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 04:21:56,267 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 04:21:56,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.04.cil-1.c [2022-10-16 04:21:56,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7cb6c091/c01e85dfe9a843dcb2b96f758a376db3/FLAG88cf2be35 [2022-10-16 04:21:57,150 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 04:21:57,151 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.04.cil-1.c [2022-10-16 04:21:57,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7cb6c091/c01e85dfe9a843dcb2b96f758a376db3/FLAG88cf2be35 [2022-10-16 04:21:57,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7cb6c091/c01e85dfe9a843dcb2b96f758a376db3 [2022-10-16 04:21:57,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 04:21:57,479 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 04:21:57,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 04:21:57,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 04:21:57,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 04:21:57,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:21:57" (1/1) ... [2022-10-16 04:21:57,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6595a87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:57, skipping insertion in model container [2022-10-16 04:21:57,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:21:57" (1/1) ... [2022-10-16 04:21:57,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 04:21:57,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 04:21:57,727 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/token_ring.04.cil-1.c[671,684] [2022-10-16 04:21:57,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 04:21:57,888 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 04:21:57,904 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/token_ring.04.cil-1.c[671,684] [2022-10-16 04:21:57,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 04:21:57,973 INFO L208 MainTranslator]: Completed translation [2022-10-16 04:21:57,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:57 WrapperNode [2022-10-16 04:21:57,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 04:21:57,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 04:21:57,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 04:21:57,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 04:21:57,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:57" (1/1) ... [2022-10-16 04:21:58,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:57" (1/1) ... [2022-10-16 04:21:58,040 INFO L138 Inliner]: procedures = 36, calls = 43, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 389 [2022-10-16 04:21:58,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 04:21:58,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 04:21:58,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 04:21:58,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 04:21:58,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:57" (1/1) ... [2022-10-16 04:21:58,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:57" (1/1) ... [2022-10-16 04:21:58,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:57" (1/1) ... [2022-10-16 04:21:58,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:57" (1/1) ... [2022-10-16 04:21:58,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:57" (1/1) ... [2022-10-16 04:21:58,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:57" (1/1) ... [2022-10-16 04:21:58,134 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:57" (1/1) ... [2022-10-16 04:21:58,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:57" (1/1) ... [2022-10-16 04:21:58,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 04:21:58,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 04:21:58,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 04:21:58,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 04:21:58,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:57" (1/1) ... [2022-10-16 04:21:58,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 04:21:58,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:58,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 04:21:58,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 04:21:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 04:21:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-16 04:21:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-16 04:21:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-16 04:21:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-16 04:21:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-10-16 04:21:58,299 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-10-16 04:21:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-16 04:21:58,299 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-16 04:21:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-16 04:21:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-16 04:21:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 04:21:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-16 04:21:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-16 04:21:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 04:21:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 04:21:58,415 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 04:21:58,418 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 04:21:59,036 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 04:21:59,058 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 04:21:59,060 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-10-16 04:21:59,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:21:59 BoogieIcfgContainer [2022-10-16 04:21:59,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 04:21:59,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 04:21:59,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 04:21:59,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 04:21:59,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 04:21:57" (1/3) ... [2022-10-16 04:21:59,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba22b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:21:59, skipping insertion in model container [2022-10-16 04:21:59,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:57" (2/3) ... [2022-10-16 04:21:59,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba22b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:21:59, skipping insertion in model container [2022-10-16 04:21:59,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:21:59" (3/3) ... [2022-10-16 04:21:59,080 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.04.cil-1.c [2022-10-16 04:21:59,105 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 04:21:59,105 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 04:21:59,215 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 04:21:59,231 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;@6602173f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 04:21:59,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 04:21:59,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 156 states have (on average 1.6153846153846154) internal successors, (252), 159 states have internal predecessors, (252), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 04:21:59,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 04:21:59,275 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:59,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:59,277 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:59,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:59,285 INFO L85 PathProgramCache]: Analyzing trace with hash -781881916, now seen corresponding path program 1 times [2022-10-16 04:21:59,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:59,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805258067] [2022-10-16 04:21:59,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:59,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:59,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:59,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:21:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:59,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:21:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:59,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:21:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:59,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:21:59,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:59,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805258067] [2022-10-16 04:21:59,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805258067] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:59,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:59,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 04:21:59,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39829768] [2022-10-16 04:21:59,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:59,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 04:21:59,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:59,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 04:21:59,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 04:21:59,966 INFO L87 Difference]: Start difference. First operand has 183 states, 156 states have (on average 1.6153846153846154) internal successors, (252), 159 states have internal predecessors, (252), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 04:22:00,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:00,914 INFO L93 Difference]: Finished difference Result 236 states and 364 transitions. [2022-10-16 04:22:00,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 04:22:00,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 75 [2022-10-16 04:22:00,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:00,934 INFO L225 Difference]: With dead ends: 236 [2022-10-16 04:22:00,934 INFO L226 Difference]: Without dead ends: 234 [2022-10-16 04:22:00,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:22:00,942 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 431 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:00,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 484 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 04:22:00,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-10-16 04:22:01,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 180. [2022-10-16 04:22:01,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 154 states have (on average 1.5129870129870129) internal successors, (233), 156 states have internal predecessors, (233), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 04:22:01,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 269 transitions. [2022-10-16 04:22:01,025 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 269 transitions. Word has length 75 [2022-10-16 04:22:01,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:01,026 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 269 transitions. [2022-10-16 04:22:01,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 04:22:01,027 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 269 transitions. [2022-10-16 04:22:01,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 04:22:01,032 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:01,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:22:01,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 04:22:01,035 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:01,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:01,036 INFO L85 PathProgramCache]: Analyzing trace with hash 559703198, now seen corresponding path program 1 times [2022-10-16 04:22:01,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:01,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470956392] [2022-10-16 04:22:01,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:01,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:01,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:01,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:01,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:01,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:01,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:01,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:01,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:01,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470956392] [2022-10-16 04:22:01,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470956392] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:01,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:01,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:22:01,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349200422] [2022-10-16 04:22:01,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:01,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:22:01,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:01,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:22:01,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:22:01,481 INFO L87 Difference]: Start difference. First operand 180 states and 269 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:02,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:02,950 INFO L93 Difference]: Finished difference Result 458 states and 705 transitions. [2022-10-16 04:22:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 04:22:02,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2022-10-16 04:22:02,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:02,976 INFO L225 Difference]: With dead ends: 458 [2022-10-16 04:22:02,977 INFO L226 Difference]: Without dead ends: 458 [2022-10-16 04:22:02,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:22:02,980 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 636 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:02,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 775 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 04:22:02,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-10-16 04:22:03,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 348. [2022-10-16 04:22:03,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 302 states have (on average 1.5298013245033113) internal successors, (462), 305 states have internal predecessors, (462), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2022-10-16 04:22:03,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 527 transitions. [2022-10-16 04:22:03,054 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 527 transitions. Word has length 89 [2022-10-16 04:22:03,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:03,054 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 527 transitions. [2022-10-16 04:22:03,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:03,055 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 527 transitions. [2022-10-16 04:22:03,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 04:22:03,060 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:03,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:22:03,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 04:22:03,060 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:03,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:03,063 INFO L85 PathProgramCache]: Analyzing trace with hash -614956254, now seen corresponding path program 1 times [2022-10-16 04:22:03,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:03,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094794037] [2022-10-16 04:22:03,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:03,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:03,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:03,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:03,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:03,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:03,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:03,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:03,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094794037] [2022-10-16 04:22:03,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094794037] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:03,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:03,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:03,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140436271] [2022-10-16 04:22:03,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:03,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:03,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:03,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:03,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:03,365 INFO L87 Difference]: Start difference. First operand 348 states and 527 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:04,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:04,752 INFO L93 Difference]: Finished difference Result 683 states and 1054 transitions. [2022-10-16 04:22:04,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:22:04,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2022-10-16 04:22:04,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:04,758 INFO L225 Difference]: With dead ends: 683 [2022-10-16 04:22:04,759 INFO L226 Difference]: Without dead ends: 683 [2022-10-16 04:22:04,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:22:04,768 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 634 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:04,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 1312 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 04:22:04,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2022-10-16 04:22:04,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 505. [2022-10-16 04:22:04,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 439 states have (on average 1.5239179954441913) internal successors, (669), 443 states have internal predecessors, (669), 44 states have call successors, (44), 18 states have call predecessors, (44), 20 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2022-10-16 04:22:04,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 762 transitions. [2022-10-16 04:22:04,822 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 762 transitions. Word has length 89 [2022-10-16 04:22:04,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:04,825 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 762 transitions. [2022-10-16 04:22:04,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:04,825 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 762 transitions. [2022-10-16 04:22:04,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 04:22:04,837 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:04,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:22:04,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 04:22:04,842 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:04,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:04,843 INFO L85 PathProgramCache]: Analyzing trace with hash 272266592, now seen corresponding path program 1 times [2022-10-16 04:22:04,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:04,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810348603] [2022-10-16 04:22:04,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:04,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:04,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:04,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:05,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:05,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:05,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:05,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:05,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:05,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810348603] [2022-10-16 04:22:05,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810348603] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:05,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:05,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:05,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465798076] [2022-10-16 04:22:05,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:05,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:05,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:05,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:05,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:05,140 INFO L87 Difference]: Start difference. First operand 505 states and 762 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:06,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:06,489 INFO L93 Difference]: Finished difference Result 1104 states and 1701 transitions. [2022-10-16 04:22:06,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:22:06,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2022-10-16 04:22:06,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:06,498 INFO L225 Difference]: With dead ends: 1104 [2022-10-16 04:22:06,499 INFO L226 Difference]: Without dead ends: 1104 [2022-10-16 04:22:06,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:22:06,501 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 679 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:06,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 931 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 04:22:06,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-10-16 04:22:06,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 820. [2022-10-16 04:22:06,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 714 states have (on average 1.5182072829131652) internal successors, (1084), 720 states have internal predecessors, (1084), 70 states have call successors, (70), 30 states have call predecessors, (70), 34 states have return successors, (83), 73 states have call predecessors, (83), 70 states have call successors, (83) [2022-10-16 04:22:06,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1237 transitions. [2022-10-16 04:22:06,543 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1237 transitions. Word has length 89 [2022-10-16 04:22:06,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:06,543 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 1237 transitions. [2022-10-16 04:22:06,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:06,544 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1237 transitions. [2022-10-16 04:22:06,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 04:22:06,546 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:06,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:22:06,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 04:22:06,547 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:06,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:06,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1638775966, now seen corresponding path program 1 times [2022-10-16 04:22:06,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:06,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008628625] [2022-10-16 04:22:06,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:06,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:06,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:06,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:06,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:06,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:06,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:06,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:06,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008628625] [2022-10-16 04:22:06,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008628625] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:06,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:06,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:06,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980826478] [2022-10-16 04:22:06,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:06,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:06,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:06,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:06,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:06,781 INFO L87 Difference]: Start difference. First operand 820 states and 1237 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:08,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:08,199 INFO L93 Difference]: Finished difference Result 1904 states and 2923 transitions. [2022-10-16 04:22:08,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:22:08,200 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2022-10-16 04:22:08,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:08,216 INFO L225 Difference]: With dead ends: 1904 [2022-10-16 04:22:08,216 INFO L226 Difference]: Without dead ends: 1904 [2022-10-16 04:22:08,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:22:08,218 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 626 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:08,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 1302 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 04:22:08,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2022-10-16 04:22:08,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1451. [2022-10-16 04:22:08,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1265 states have (on average 1.5130434782608695) internal successors, (1914), 1275 states have internal predecessors, (1914), 122 states have call successors, (122), 54 states have call predecessors, (122), 62 states have return successors, (157), 129 states have call predecessors, (157), 122 states have call successors, (157) [2022-10-16 04:22:08,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2193 transitions. [2022-10-16 04:22:08,284 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2193 transitions. Word has length 89 [2022-10-16 04:22:08,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:08,284 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2193 transitions. [2022-10-16 04:22:08,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:08,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2193 transitions. [2022-10-16 04:22:08,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 04:22:08,288 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:08,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:22:08,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 04:22:08,289 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:08,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:08,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1561875168, now seen corresponding path program 1 times [2022-10-16 04:22:08,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:08,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129614900] [2022-10-16 04:22:08,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:08,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:08,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:08,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:08,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:08,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:08,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:08,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:08,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:08,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129614900] [2022-10-16 04:22:08,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129614900] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:08,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:08,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:08,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216190578] [2022-10-16 04:22:08,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:08,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:08,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:08,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:08,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:08,491 INFO L87 Difference]: Start difference. First operand 1451 states and 2193 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:09,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:09,833 INFO L93 Difference]: Finished difference Result 3502 states and 5377 transitions. [2022-10-16 04:22:09,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:22:09,834 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2022-10-16 04:22:09,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:09,860 INFO L225 Difference]: With dead ends: 3502 [2022-10-16 04:22:09,860 INFO L226 Difference]: Without dead ends: 3502 [2022-10-16 04:22:09,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:22:09,862 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 622 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1298 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:09,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1298 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 04:22:09,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2022-10-16 04:22:09,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 2718. [2022-10-16 04:22:09,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2718 states, 2372 states have (on average 1.5092748735244519) internal successors, (3580), 2390 states have internal predecessors, (3580), 226 states have call successors, (226), 102 states have call predecessors, (226), 118 states have return successors, (323), 241 states have call predecessors, (323), 226 states have call successors, (323) [2022-10-16 04:22:10,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 4129 transitions. [2022-10-16 04:22:10,008 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 4129 transitions. Word has length 89 [2022-10-16 04:22:10,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:10,009 INFO L495 AbstractCegarLoop]: Abstraction has 2718 states and 4129 transitions. [2022-10-16 04:22:10,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:10,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 4129 transitions. [2022-10-16 04:22:10,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 04:22:10,013 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:10,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:22:10,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 04:22:10,014 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:10,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:10,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1765741474, now seen corresponding path program 1 times [2022-10-16 04:22:10,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:10,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734551572] [2022-10-16 04:22:10,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:10,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:10,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:10,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:10,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:10,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:10,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:10,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:10,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:10,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734551572] [2022-10-16 04:22:10,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734551572] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:10,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:10,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:10,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268947134] [2022-10-16 04:22:10,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:10,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:10,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:10,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:10,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:10,185 INFO L87 Difference]: Start difference. First operand 2718 states and 4129 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:11,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:11,615 INFO L93 Difference]: Finished difference Result 7732 states and 11857 transitions. [2022-10-16 04:22:11,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:22:11,616 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2022-10-16 04:22:11,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:11,673 INFO L225 Difference]: With dead ends: 7732 [2022-10-16 04:22:11,674 INFO L226 Difference]: Without dead ends: 7732 [2022-10-16 04:22:11,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:22:11,678 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 792 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:11,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1284 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 04:22:11,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7732 states. [2022-10-16 04:22:11,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7732 to 5217. [2022-10-16 04:22:11,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 4567 states have (on average 1.5104007006787825) internal successors, (6898), 4601 states have internal predecessors, (6898), 418 states have call successors, (418), 198 states have call predecessors, (418), 230 states have return successors, (693), 449 states have call predecessors, (693), 418 states have call successors, (693) [2022-10-16 04:22:11,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 8009 transitions. [2022-10-16 04:22:11,953 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 8009 transitions. Word has length 89 [2022-10-16 04:22:11,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:11,954 INFO L495 AbstractCegarLoop]: Abstraction has 5217 states and 8009 transitions. [2022-10-16 04:22:11,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:11,954 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 8009 transitions. [2022-10-16 04:22:11,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 04:22:11,961 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:11,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:22:11,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 04:22:11,962 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:11,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:11,963 INFO L85 PathProgramCache]: Analyzing trace with hash -620768032, now seen corresponding path program 1 times [2022-10-16 04:22:11,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:11,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845594652] [2022-10-16 04:22:11,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:11,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:12,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:12,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:12,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:12,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:12,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:12,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:12,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:12,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845594652] [2022-10-16 04:22:12,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845594652] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:12,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:12,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:12,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266201841] [2022-10-16 04:22:12,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:12,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:12,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:12,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:12,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:12,136 INFO L87 Difference]: Start difference. First operand 5217 states and 8009 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:13,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:13,783 INFO L93 Difference]: Finished difference Result 14658 states and 22659 transitions. [2022-10-16 04:22:13,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:22:13,783 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2022-10-16 04:22:13,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:13,898 INFO L225 Difference]: With dead ends: 14658 [2022-10-16 04:22:13,899 INFO L226 Difference]: Without dead ends: 14658 [2022-10-16 04:22:13,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:22:13,900 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 649 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:13,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 1334 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 04:22:13,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14658 states. [2022-10-16 04:22:14,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14658 to 10036. [2022-10-16 04:22:14,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10036 states, 8794 states have (on average 1.511030247896293) internal successors, (13288), 8860 states have internal predecessors, (13288), 786 states have call successors, (786), 390 states have call predecessors, (786), 454 states have return successors, (1579), 849 states have call predecessors, (1579), 786 states have call successors, (1579) [2022-10-16 04:22:14,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10036 states to 10036 states and 15653 transitions. [2022-10-16 04:22:14,370 INFO L78 Accepts]: Start accepts. Automaton has 10036 states and 15653 transitions. Word has length 89 [2022-10-16 04:22:14,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:14,370 INFO L495 AbstractCegarLoop]: Abstraction has 10036 states and 15653 transitions. [2022-10-16 04:22:14,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:14,371 INFO L276 IsEmpty]: Start isEmpty. Operand 10036 states and 15653 transitions. [2022-10-16 04:22:14,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 04:22:14,382 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:14,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:22:14,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 04:22:14,383 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:14,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:14,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1113394206, now seen corresponding path program 1 times [2022-10-16 04:22:14,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:14,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847558050] [2022-10-16 04:22:14,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:14,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:14,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:14,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:14,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:14,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:14,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:14,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:14,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:14,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847558050] [2022-10-16 04:22:14,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847558050] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:14,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:14,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:14,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117988030] [2022-10-16 04:22:14,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:14,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:14,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:14,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:14,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:14,556 INFO L87 Difference]: Start difference. First operand 10036 states and 15653 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:16,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:16,068 INFO L93 Difference]: Finished difference Result 26657 states and 41875 transitions. [2022-10-16 04:22:16,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:22:16,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2022-10-16 04:22:16,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:16,199 INFO L225 Difference]: With dead ends: 26657 [2022-10-16 04:22:16,199 INFO L226 Difference]: Without dead ends: 26657 [2022-10-16 04:22:16,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:22:16,202 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 669 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:16,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 1270 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 04:22:16,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26657 states. [2022-10-16 04:22:16,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26657 to 19864. [2022-10-16 04:22:17,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19864 states, 17470 states have (on average 1.515741270749857) internal successors, (26480), 17600 states have internal predecessors, (26480), 1490 states have call successors, (1490), 774 states have call predecessors, (1490), 902 states have return successors, (3805), 1617 states have call predecessors, (3805), 1490 states have call successors, (3805) [2022-10-16 04:22:17,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19864 states to 19864 states and 31775 transitions. [2022-10-16 04:22:17,279 INFO L78 Accepts]: Start accepts. Automaton has 19864 states and 31775 transitions. Word has length 89 [2022-10-16 04:22:17,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:17,279 INFO L495 AbstractCegarLoop]: Abstraction has 19864 states and 31775 transitions. [2022-10-16 04:22:17,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:17,280 INFO L276 IsEmpty]: Start isEmpty. Operand 19864 states and 31775 transitions. [2022-10-16 04:22:17,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 04:22:17,307 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:17,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:22:17,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 04:22:17,307 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:17,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:17,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1965419364, now seen corresponding path program 1 times [2022-10-16 04:22:17,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:17,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291874904] [2022-10-16 04:22:17,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:17,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:17,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:17,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:17,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:17,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:17,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:17,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:17,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:17,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291874904] [2022-10-16 04:22:17,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291874904] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:17,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:17,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:17,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905255881] [2022-10-16 04:22:17,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:17,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:17,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:17,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:17,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:17,497 INFO L87 Difference]: Start difference. First operand 19864 states and 31775 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:19,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:19,373 INFO L93 Difference]: Finished difference Result 50723 states and 81773 transitions. [2022-10-16 04:22:19,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:22:19,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2022-10-16 04:22:19,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:19,721 INFO L225 Difference]: With dead ends: 50723 [2022-10-16 04:22:19,722 INFO L226 Difference]: Without dead ends: 50723 [2022-10-16 04:22:19,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:22:19,723 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 614 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:19,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1278 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 04:22:19,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50723 states. [2022-10-16 04:22:21,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50723 to 39453. [2022-10-16 04:22:21,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39453 states, 34819 states have (on average 1.5199172865389585) internal successors, (52922), 35077 states have internal predecessors, (52922), 2834 states have call successors, (2834), 1542 states have call predecessors, (2834), 1798 states have return successors, (9651), 3089 states have call predecessors, (9651), 2834 states have call successors, (9651) [2022-10-16 04:22:21,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39453 states to 39453 states and 65407 transitions. [2022-10-16 04:22:21,865 INFO L78 Accepts]: Start accepts. Automaton has 39453 states and 65407 transitions. Word has length 89 [2022-10-16 04:22:21,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:21,866 INFO L495 AbstractCegarLoop]: Abstraction has 39453 states and 65407 transitions. [2022-10-16 04:22:21,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:21,867 INFO L276 IsEmpty]: Start isEmpty. Operand 39453 states and 65407 transitions. [2022-10-16 04:22:21,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 04:22:21,913 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:21,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:22:21,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 04:22:21,914 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:21,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:21,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1233451938, now seen corresponding path program 1 times [2022-10-16 04:22:21,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:21,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280700941] [2022-10-16 04:22:21,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:21,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:21,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:21,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:21,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:22,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:22,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:22,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:22,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:22,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280700941] [2022-10-16 04:22:22,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280700941] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:22,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:22,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:22:22,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832736691] [2022-10-16 04:22:22,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:22,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:22:22,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:22,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:22:22,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:22:22,043 INFO L87 Difference]: Start difference. First operand 39453 states and 65407 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:23,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:23,684 INFO L93 Difference]: Finished difference Result 72776 states and 116199 transitions. [2022-10-16 04:22:23,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 04:22:23,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2022-10-16 04:22:23,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:24,267 INFO L225 Difference]: With dead ends: 72776 [2022-10-16 04:22:24,268 INFO L226 Difference]: Without dead ends: 72776 [2022-10-16 04:22:24,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-10-16 04:22:24,269 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 823 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:24,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 1079 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 04:22:24,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72776 states. [2022-10-16 04:22:25,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72776 to 58976. [2022-10-16 04:22:25,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58976 states, 51954 states have (on average 1.508180313354121) internal successors, (78356), 52469 states have internal predecessors, (78356), 4320 states have call successors, (4320), 2316 states have call predecessors, (4320), 2700 states have return successors, (13325), 4446 states have call predecessors, (13325), 4320 states have call successors, (13325) [2022-10-16 04:22:26,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58976 states to 58976 states and 96001 transitions. [2022-10-16 04:22:26,638 INFO L78 Accepts]: Start accepts. Automaton has 58976 states and 96001 transitions. Word has length 89 [2022-10-16 04:22:26,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:26,638 INFO L495 AbstractCegarLoop]: Abstraction has 58976 states and 96001 transitions. [2022-10-16 04:22:26,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:26,639 INFO L276 IsEmpty]: Start isEmpty. Operand 58976 states and 96001 transitions. [2022-10-16 04:22:26,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-16 04:22:26,813 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:26,813 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:22:26,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 04:22:26,814 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:26,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:26,815 INFO L85 PathProgramCache]: Analyzing trace with hash -594646102, now seen corresponding path program 1 times [2022-10-16 04:22:26,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:26,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465999506] [2022-10-16 04:22:26,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:26,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:26,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:26,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:26,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 04:22:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:22:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 04:22:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 04:22:27,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:27,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465999506] [2022-10-16 04:22:27,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465999506] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:22:27,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92405793] [2022-10-16 04:22:27,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:27,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:22:27,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:22:27,084 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:22:27,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 04:22:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:22:27,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:22:27,740 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 04:22:27,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:22:27,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92405793] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:27,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:22:27,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 04:22:27,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601720268] [2022-10-16 04:22:27,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:27,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:22:27,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:27,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:22:27,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:22:27,751 INFO L87 Difference]: Start difference. First operand 58976 states and 96001 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 04:22:29,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:29,017 INFO L93 Difference]: Finished difference Result 116584 states and 189019 transitions. [2022-10-16 04:22:29,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:22:29,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 145 [2022-10-16 04:22:29,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:29,781 INFO L225 Difference]: With dead ends: 116584 [2022-10-16 04:22:29,782 INFO L226 Difference]: Without dead ends: 116584 [2022-10-16 04:22:29,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:22:29,785 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 219 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:29,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 518 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:22:29,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116584 states. [2022-10-16 04:22:32,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116584 to 115807. [2022-10-16 04:22:32,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115807 states, 101963 states have (on average 1.5064778400007846) internal successors, (153605), 102991 states have internal predecessors, (153605), 8442 states have call successors, (8442), 4632 states have call predecessors, (8442), 5400 states have return successors, (26197), 8439 states have call predecessors, (26197), 8442 states have call successors, (26197) [2022-10-16 04:22:34,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115807 states to 115807 states and 188244 transitions. [2022-10-16 04:22:34,138 INFO L78 Accepts]: Start accepts. Automaton has 115807 states and 188244 transitions. Word has length 145 [2022-10-16 04:22:34,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:34,138 INFO L495 AbstractCegarLoop]: Abstraction has 115807 states and 188244 transitions. [2022-10-16 04:22:34,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 04:22:34,139 INFO L276 IsEmpty]: Start isEmpty. Operand 115807 states and 188244 transitions. [2022-10-16 04:22:34,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-16 04:22:34,510 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:34,511 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:22:34,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 04:22:34,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 04:22:34,727 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:34,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:34,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1832266698, now seen corresponding path program 1 times [2022-10-16 04:22:34,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:34,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107331296] [2022-10-16 04:22:34,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:34,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:34,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:34,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:34,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:34,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:34,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:34,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 04:22:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:34,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:22:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:35,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 04:22:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:35,020 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 04:22:35,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:35,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107331296] [2022-10-16 04:22:35,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107331296] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:22:35,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786068577] [2022-10-16 04:22:35,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:35,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:22:35,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:22:35,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:22:35,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 04:22:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:35,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:22:35,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:22:35,254 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 04:22:35,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:22:35,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786068577] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:35,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:22:35,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 04:22:35,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176905663] [2022-10-16 04:22:35,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:35,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:22:35,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:35,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:22:35,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:22:35,258 INFO L87 Difference]: Start difference. First operand 115807 states and 188244 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 04:22:37,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:37,352 INFO L93 Difference]: Finished difference Result 228892 states and 370799 transitions. [2022-10-16 04:22:37,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:22:37,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 145 [2022-10-16 04:22:37,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:38,870 INFO L225 Difference]: With dead ends: 228892 [2022-10-16 04:22:38,871 INFO L226 Difference]: Without dead ends: 228892 [2022-10-16 04:22:38,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:22:38,872 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 213 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:38,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 518 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:22:39,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228892 states. [2022-10-16 04:22:42,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228892 to 227343. [2022-10-16 04:22:43,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227343 states, 200049 states have (on average 1.5046963493943983) internal successors, (301013), 202103 states have internal predecessors, (301013), 16492 states have call successors, (16492), 9264 states have call predecessors, (16492), 10800 states have return successors, (51747), 16231 states have call predecessors, (51747), 16492 states have call successors, (51747) [2022-10-16 04:22:45,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227343 states to 227343 states and 369252 transitions. [2022-10-16 04:22:45,661 INFO L78 Accepts]: Start accepts. Automaton has 227343 states and 369252 transitions. Word has length 145 [2022-10-16 04:22:45,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:45,663 INFO L495 AbstractCegarLoop]: Abstraction has 227343 states and 369252 transitions. [2022-10-16 04:22:45,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 04:22:45,664 INFO L276 IsEmpty]: Start isEmpty. Operand 227343 states and 369252 transitions. [2022-10-16 04:22:46,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-16 04:22:46,040 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:46,040 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:22:46,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 04:22:46,255 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,SelfDestructingSolverStorable12 [2022-10-16 04:22:46,256 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:46,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:46,257 INFO L85 PathProgramCache]: Analyzing trace with hash -2043116566, now seen corresponding path program 1 times [2022-10-16 04:22:46,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:46,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100295677] [2022-10-16 04:22:46,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:46,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:46,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:46,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:46,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:46,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:46,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:46,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 04:22:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:46,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:22:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:46,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 04:22:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:46,475 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 04:22:46,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:46,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100295677] [2022-10-16 04:22:46,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100295677] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:22:46,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553839764] [2022-10-16 04:22:46,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:46,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:22:46,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:22:46,478 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:22:46,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 04:22:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:46,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:22:46,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:22:46,631 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-16 04:22:46,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:22:46,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553839764] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:46,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:22:46,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-10-16 04:22:46,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128958163] [2022-10-16 04:22:46,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:46,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:22:46,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:46,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:22:46,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:22:46,634 INFO L87 Difference]: Start difference. First operand 227343 states and 369252 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 04:22:50,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:50,723 INFO L93 Difference]: Finished difference Result 446942 states and 730256 transitions. [2022-10-16 04:22:50,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:22:50,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 145 [2022-10-16 04:22:50,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:53,366 INFO L225 Difference]: With dead ends: 446942 [2022-10-16 04:22:53,366 INFO L226 Difference]: Without dead ends: 446942 [2022-10-16 04:22:53,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:22:53,368 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 236 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 776 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 [2022-10-16 04:22:53,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 776 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:22:53,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446942 states. [2022-10-16 04:23:02,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446942 to 446939. [2022-10-16 04:23:03,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446939 states, 393386 states have (on average 1.49890692602177) internal successors, (589649), 396977 states have internal predecessors, (589649), 31951 states have call successors, (31951), 18528 states have call predecessors, (31951), 21600 states have return successors, (108654), 31945 states have call predecessors, (108654), 31951 states have call successors, (108654) [2022-10-16 04:23:07,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446939 states to 446939 states and 730254 transitions. [2022-10-16 04:23:07,560 INFO L78 Accepts]: Start accepts. Automaton has 446939 states and 730254 transitions. Word has length 145 [2022-10-16 04:23:07,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:23:07,561 INFO L495 AbstractCegarLoop]: Abstraction has 446939 states and 730254 transitions. [2022-10-16 04:23:07,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 04:23:07,561 INFO L276 IsEmpty]: Start isEmpty. Operand 446939 states and 730254 transitions. [2022-10-16 04:23:10,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-10-16 04:23:10,373 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:23:10,373 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:23:10,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 04:23:10,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:23:10,587 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:23:10,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:23:10,588 INFO L85 PathProgramCache]: Analyzing trace with hash -185376845, now seen corresponding path program 1 times [2022-10-16 04:23:10,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:23:10,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442600081] [2022-10-16 04:23:10,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:23:10,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:23:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:10,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:23:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:10,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:23:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:10,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:23:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:10,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:23:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:10,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:23:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:10,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 04:23:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:10,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 04:23:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:10,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 04:23:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:10,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 04:23:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:10,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 04:23:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:10,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-16 04:23:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:10,933 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-16 04:23:10,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:23:10,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442600081] [2022-10-16 04:23:10,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442600081] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:23:10,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535338342] [2022-10-16 04:23:10,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:23:10,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:23:10,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:23:10,937 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:23:10,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 04:23:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:11,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:23:11,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:23:11,220 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-10-16 04:23:11,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:23:11,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535338342] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:23:11,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:23:11,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 04:23:11,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650558374] [2022-10-16 04:23:11,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:23:11,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:23:11,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:23:11,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:23:11,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:23:11,226 INFO L87 Difference]: Start difference. First operand 446939 states and 730254 transitions. Second operand has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 04:23:17,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:23:17,007 INFO L93 Difference]: Finished difference Result 446938 states and 730253 transitions. [2022-10-16 04:23:17,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:23:17,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 169 [2022-10-16 04:23:17,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:23:20,609 INFO L225 Difference]: With dead ends: 446938 [2022-10-16 04:23:20,609 INFO L226 Difference]: Without dead ends: 446936 [2022-10-16 04:23:20,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:23:20,614 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 98 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:23:20,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 378 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 04:23:21,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446936 states. [2022-10-16 04:23:29,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446936 to 446936. [2022-10-16 04:23:30,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446936 states, 393384 states have (on average 1.4910596262176397) internal successors, (586559), 396974 states have internal predecessors, (586559), 31951 states have call successors, (31951), 18528 states have call predecessors, (31951), 21600 states have return successors, (108654), 31945 states have call predecessors, (108654), 31951 states have call successors, (108654) [2022-10-16 04:23:35,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446936 states to 446936 states and 727164 transitions. [2022-10-16 04:23:35,039 INFO L78 Accepts]: Start accepts. Automaton has 446936 states and 727164 transitions. Word has length 169 [2022-10-16 04:23:35,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:23:35,042 INFO L495 AbstractCegarLoop]: Abstraction has 446936 states and 727164 transitions. [2022-10-16 04:23:35,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 04:23:35,042 INFO L276 IsEmpty]: Start isEmpty. Operand 446936 states and 727164 transitions. [2022-10-16 04:23:37,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-10-16 04:23:37,045 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:23:37,045 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 04:23:37,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 04:23:37,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 04:23:37,260 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:23:37,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:23:37,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1504841451, now seen corresponding path program 1 times [2022-10-16 04:23:37,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:23:37,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980677351] [2022-10-16 04:23:37,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:23:37,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:23:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:37,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:23:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:37,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:23:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:37,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:23:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:37,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:23:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:37,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:23:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:37,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 04:23:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:23:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:37,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 04:23:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:37,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:23:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:37,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-10-16 04:23:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:37,572 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-10-16 04:23:37,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:23:37,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980677351] [2022-10-16 04:23:37,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980677351] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:23:37,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371014546] [2022-10-16 04:23:37,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:23:37,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:23:37,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:23:37,575 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:23:37,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 04:23:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:37,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:23:37,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:23:37,944 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-16 04:23:37,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:23:37,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371014546] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:23:37,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:23:37,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 04:23:37,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973471736] [2022-10-16 04:23:37,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:23:37,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:23:37,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:23:37,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:23:37,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:23:37,947 INFO L87 Difference]: Start difference. First operand 446936 states and 727164 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 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) [2022-10-16 04:23:47,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:23:47,608 INFO L93 Difference]: Finished difference Result 883018 states and 1431357 transitions. [2022-10-16 04:23:47,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:23:47,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 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 189 [2022-10-16 04:23:47,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:23:54,431 INFO L225 Difference]: With dead ends: 883018 [2022-10-16 04:23:54,432 INFO L226 Difference]: Without dead ends: 883018 [2022-10-16 04:23:54,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:23:54,436 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 155 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:23:54,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 512 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:23:55,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883018 states. [2022-10-16 04:24:15,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883018 to 876840. [2022-10-16 04:24:17,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876840 states, 771296 states have (on average 1.4888901277849231) internal successors, (1148375), 778474 states have internal predecessors, (1148375), 62343 states have call successors, (62343), 37056 states have call predecessors, (62343), 43200 states have return successors, (214462), 61821 states have call predecessors, (214462), 62343 states have call successors, (214462) [2022-10-16 04:24:28,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876840 states to 876840 states and 1425180 transitions. [2022-10-16 04:24:28,873 INFO L78 Accepts]: Start accepts. Automaton has 876840 states and 1425180 transitions. Word has length 189 [2022-10-16 04:24:28,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:24:28,873 INFO L495 AbstractCegarLoop]: Abstraction has 876840 states and 1425180 transitions. [2022-10-16 04:24:28,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 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) [2022-10-16 04:24:28,874 INFO L276 IsEmpty]: Start isEmpty. Operand 876840 states and 1425180 transitions. [2022-10-16 04:24:35,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-10-16 04:24:35,916 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:24:35,917 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 04:24:35,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 04:24:36,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 04:24:36,132 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:24:36,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:24:36,133 INFO L85 PathProgramCache]: Analyzing trace with hash -68136673, now seen corresponding path program 1 times [2022-10-16 04:24:36,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:24:36,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198031821] [2022-10-16 04:24:36,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:24:36,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:24:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:36,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:24:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:36,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:24:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:36,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:24:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:36,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:24:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:36,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:24:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:36,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 04:24:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:36,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:24:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:36,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 04:24:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:36,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:24:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-10-16 04:24:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:36,508 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-10-16 04:24:36,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:24:36,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198031821] [2022-10-16 04:24:36,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198031821] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:24:36,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321951161] [2022-10-16 04:24:36,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:24:36,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:24:36,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:24:36,520 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:24:36,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 04:24:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:36,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:24:36,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:24:36,943 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-16 04:24:36,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:24:36,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321951161] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:24:36,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:24:36,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 04:24:36,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554798486] [2022-10-16 04:24:36,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:24:36,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:24:36,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:24:36,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:24:36,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:24:36,951 INFO L87 Difference]: Start difference. First operand 876840 states and 1425180 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 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)