/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:29:48,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:29:48,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:29:49,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 02:29:49,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 02:29:49,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 02:29:49,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 02:29:49,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 02:29:49,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 02:29:49,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 02:29:49,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 02:29:49,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 02:29:49,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 02:29:49,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 02:29:49,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 02:29:49,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 02:29:49,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 02:29:49,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 02:29:49,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 02:29:49,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 02:29:49,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 02:29:49,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 02:29:49,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 02:29:49,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 02:29:49,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 02:29:49,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 02:29:49,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 02:29:49,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 02:29:49,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 02:29:49,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 02:29:49,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 02:29:49,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 02:29:49,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 02:29:49,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 02:29:49,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 02:29:49,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 02:29:49,138 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 02:29:49,192 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:29:49,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:29:49,193 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:29:49,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:29:49,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:29:49,195 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:29:49,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:29:49,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:29:49,198 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:29:49,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:29:49,199 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:29:49,199 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:29:49,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:29:49,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:29:49,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:29:49,200 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:29:49,200 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:29:49,201 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:29:49,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:29:49,201 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:29:49,201 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:29:49,201 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:29:49,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:29:49,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:29:49,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:29:49,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:29:49,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:29:49,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:29:49,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:29:49,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:29:49,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:29:49,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:29:49,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:29:49,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:29:49,658 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:29:49,659 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:29:49,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c [2022-10-16 02:29:49,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95b67c754/d44033b0afac4ca48fcdde73f4994efc/FLAG13b124c6f [2022-10-16 02:29:50,428 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:29:50,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c [2022-10-16 02:29:50,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95b67c754/d44033b0afac4ca48fcdde73f4994efc/FLAG13b124c6f [2022-10-16 02:29:50,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95b67c754/d44033b0afac4ca48fcdde73f4994efc [2022-10-16 02:29:50,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:29:50,697 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:29:50,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:29:50,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:29:50,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:29:50,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:50" (1/1) ... [2022-10-16 02:29:50,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc7f67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:50, skipping insertion in model container [2022-10-16 02:29:50,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:50" (1/1) ... [2022-10-16 02:29:50,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:29:50,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:29:51,123 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c[14680,14693] [2022-10-16 02:29:51,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:29:51,139 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:29:51,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c[14680,14693] [2022-10-16 02:29:51,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:29:51,236 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:29:51,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:51 WrapperNode [2022-10-16 02:29:51,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:29:51,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:29:51,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:29:51,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:29:51,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:51" (1/1) ... [2022-10-16 02:29:51,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:51" (1/1) ... [2022-10-16 02:29:51,320 INFO L138 Inliner]: procedures = 32, calls = 48, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 535 [2022-10-16 02:29:51,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:29:51,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:29:51,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:29:51,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:29:51,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:51" (1/1) ... [2022-10-16 02:29:51,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:51" (1/1) ... [2022-10-16 02:29:51,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:51" (1/1) ... [2022-10-16 02:29:51,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:51" (1/1) ... [2022-10-16 02:29:51,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:51" (1/1) ... [2022-10-16 02:29:51,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:51" (1/1) ... [2022-10-16 02:29:51,374 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:51" (1/1) ... [2022-10-16 02:29:51,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:51" (1/1) ... [2022-10-16 02:29:51,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:29:51,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:29:51,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:29:51,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:29:51,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:51" (1/1) ... [2022-10-16 02:29:51,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:29:51,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:29:51,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 02:29:51,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 02:29:51,524 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2022-10-16 02:29:51,524 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2022-10-16 02:29:51,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:29:51,524 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2022-10-16 02:29:51,524 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2022-10-16 02:29:51,525 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 02:29:51,525 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 02:29:51,525 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2022-10-16 02:29:51,525 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2022-10-16 02:29:51,525 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 02:29:51,526 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 02:29:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:29:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2022-10-16 02:29:51,526 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2022-10-16 02:29:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:29:51,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:29:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2022-10-16 02:29:51,527 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2022-10-16 02:29:51,717 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:29:51,728 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:29:52,597 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:29:52,609 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:29:52,609 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 02:29:52,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:52 BoogieIcfgContainer [2022-10-16 02:29:52,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:29:52,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:29:52,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:29:52,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:29:52,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:29:50" (1/3) ... [2022-10-16 02:29:52,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1250df34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:52, skipping insertion in model container [2022-10-16 02:29:52,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:51" (2/3) ... [2022-10-16 02:29:52,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1250df34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:52, skipping insertion in model container [2022-10-16 02:29:52,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:52" (3/3) ... [2022-10-16 02:29:52,623 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c [2022-10-16 02:29:52,645 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:29:52,645 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:29:52,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:29:52,722 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;@5cd5c883, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:29:52,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:29:52,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 166 states have (on average 1.5602409638554218) internal successors, (259), 169 states have internal predecessors, (259), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-10-16 02:29:52,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 02:29:52,740 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:52,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:52,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:52,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:52,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2146687570, now seen corresponding path program 1 times [2022-10-16 02:29:52,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:52,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211654569] [2022-10-16 02:29:52,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:52,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:52,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:29:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:53,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:29:53,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:53,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211654569] [2022-10-16 02:29:53,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211654569] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:53,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:53,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 02:29:53,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020559811] [2022-10-16 02:29:53,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:53,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 02:29:53,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:53,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 02:29:53,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:29:53,073 INFO L87 Difference]: Start difference. First operand has 207 states, 166 states have (on average 1.5602409638554218) internal successors, (259), 169 states have internal predecessors, (259), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:29:53,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:53,120 INFO L93 Difference]: Finished difference Result 202 states and 307 transitions. [2022-10-16 02:29:53,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 02:29:53,122 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-10-16 02:29:53,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:53,135 INFO L225 Difference]: With dead ends: 202 [2022-10-16 02:29:53,135 INFO L226 Difference]: Without dead ends: 202 [2022-10-16 02:29:53,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:29:53,141 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:53,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:53,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-10-16 02:29:53,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2022-10-16 02:29:53,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 163 states have (on average 1.5030674846625767) internal successors, (245), 164 states have internal predecessors, (245), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-10-16 02:29:53,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 307 transitions. [2022-10-16 02:29:53,223 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 307 transitions. Word has length 13 [2022-10-16 02:29:53,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:53,224 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 307 transitions. [2022-10-16 02:29:53,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:29:53,225 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 307 transitions. [2022-10-16 02:29:53,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 02:29:53,228 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:53,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:53,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:29:53,229 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:53,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:53,230 INFO L85 PathProgramCache]: Analyzing trace with hash -527444980, now seen corresponding path program 1 times [2022-10-16 02:29:53,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:53,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581066043] [2022-10-16 02:29:53,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:53,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:53,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:29:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:53,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:29:53,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:53,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581066043] [2022-10-16 02:29:53,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581066043] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:53,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:53,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:29:53,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464790725] [2022-10-16 02:29:53,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:53,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:29:53,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:53,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:29:53,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:29:53,586 INFO L87 Difference]: Start difference. First operand 202 states and 307 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:29:53,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:53,756 INFO L93 Difference]: Finished difference Result 204 states and 309 transitions. [2022-10-16 02:29:53,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:29:53,758 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-10-16 02:29:53,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:53,761 INFO L225 Difference]: With dead ends: 204 [2022-10-16 02:29:53,761 INFO L226 Difference]: Without dead ends: 202 [2022-10-16 02:29:53,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:29:53,764 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 171 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:53,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 1296 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:29:53,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-10-16 02:29:53,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2022-10-16 02:29:53,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 163 states have (on average 1.4294478527607362) internal successors, (233), 164 states have internal predecessors, (233), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-10-16 02:29:53,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 295 transitions. [2022-10-16 02:29:53,792 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 295 transitions. Word has length 44 [2022-10-16 02:29:53,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:53,793 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 295 transitions. [2022-10-16 02:29:53,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:29:53,793 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 295 transitions. [2022-10-16 02:29:53,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 02:29:53,796 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:53,796 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:53,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:29:53,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:53,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:53,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1202945359, now seen corresponding path program 1 times [2022-10-16 02:29:53,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:53,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474154934] [2022-10-16 02:29:53,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:53,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:54,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:54,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:29:54,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:54,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474154934] [2022-10-16 02:29:54,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474154934] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:54,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:54,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:54,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343641697] [2022-10-16 02:29:54,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:54,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:54,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:54,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:54,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:54,273 INFO L87 Difference]: Start difference. First operand 202 states and 295 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:29:54,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:54,336 INFO L93 Difference]: Finished difference Result 206 states and 298 transitions. [2022-10-16 02:29:54,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:54,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2022-10-16 02:29:54,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:54,339 INFO L225 Difference]: With dead ends: 206 [2022-10-16 02:29:54,340 INFO L226 Difference]: Without dead ends: 206 [2022-10-16 02:29:54,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:54,342 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 5 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:54,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 857 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:54,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-10-16 02:29:54,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2022-10-16 02:29:54,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 166 states have (on average 1.4216867469879517) internal successors, (236), 167 states have internal predecessors, (236), 31 states have call successors, (31), 8 states have call predecessors, (31), 8 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-10-16 02:29:54,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 298 transitions. [2022-10-16 02:29:54,366 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 298 transitions. Word has length 55 [2022-10-16 02:29:54,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:54,367 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 298 transitions. [2022-10-16 02:29:54,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:29:54,368 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 298 transitions. [2022-10-16 02:29:54,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 02:29:54,371 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:54,371 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:54,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:29:54,372 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:54,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:54,373 INFO L85 PathProgramCache]: Analyzing trace with hash -915994749, now seen corresponding path program 1 times [2022-10-16 02:29:54,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:54,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930799725] [2022-10-16 02:29:54,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:54,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:54,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:54,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:54,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 02:29:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:54,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:54,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:54,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930799725] [2022-10-16 02:29:54,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930799725] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:54,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:54,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:29:54,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321459455] [2022-10-16 02:29:54,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:54,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:29:54,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:54,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:29:54,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:29:54,521 INFO L87 Difference]: Start difference. First operand 206 states and 298 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:54,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:54,555 INFO L93 Difference]: Finished difference Result 372 states and 542 transitions. [2022-10-16 02:29:54,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:29:54,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 71 [2022-10-16 02:29:54,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:54,560 INFO L225 Difference]: With dead ends: 372 [2022-10-16 02:29:54,560 INFO L226 Difference]: Without dead ends: 372 [2022-10-16 02:29:54,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:29:54,563 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 226 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:54,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 620 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:54,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-10-16 02:29:54,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 363. [2022-10-16 02:29:54,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 286 states have (on average 1.4405594405594406) internal successors, (412), 288 states have internal predecessors, (412), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2022-10-16 02:29:54,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 532 transitions. [2022-10-16 02:29:54,622 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 532 transitions. Word has length 71 [2022-10-16 02:29:54,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:54,623 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 532 transitions. [2022-10-16 02:29:54,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:54,626 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 532 transitions. [2022-10-16 02:29:54,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 02:29:54,634 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:54,634 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:54,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:29:54,635 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:54,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:54,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1756914315, now seen corresponding path program 1 times [2022-10-16 02:29:54,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:54,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315592637] [2022-10-16 02:29:54,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:54,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:54,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:54,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:54,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 02:29:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:54,841 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:54,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:54,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315592637] [2022-10-16 02:29:54,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315592637] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:54,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:54,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:29:54,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296788114] [2022-10-16 02:29:54,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:54,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:29:54,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:54,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:29:54,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:29:54,855 INFO L87 Difference]: Start difference. First operand 363 states and 532 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:54,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:54,898 INFO L93 Difference]: Finished difference Result 660 states and 974 transitions. [2022-10-16 02:29:54,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:29:54,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 72 [2022-10-16 02:29:54,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:54,906 INFO L225 Difference]: With dead ends: 660 [2022-10-16 02:29:54,906 INFO L226 Difference]: Without dead ends: 660 [2022-10-16 02:29:54,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:29:54,908 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 234 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:54,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 655 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:54,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-10-16 02:29:54,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 643. [2022-10-16 02:29:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 494 states have (on average 1.459514170040486) internal successors, (721), 498 states have internal predecessors, (721), 117 states have call successors, (117), 31 states have call predecessors, (117), 31 states have return successors, (117), 114 states have call predecessors, (117), 117 states have call successors, (117) [2022-10-16 02:29:54,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 955 transitions. [2022-10-16 02:29:54,951 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 955 transitions. Word has length 72 [2022-10-16 02:29:54,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:54,951 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 955 transitions. [2022-10-16 02:29:54,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:54,952 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 955 transitions. [2022-10-16 02:29:54,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 02:29:54,955 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:54,955 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:54,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:29:54,955 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:54,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:54,956 INFO L85 PathProgramCache]: Analyzing trace with hash 477050637, now seen corresponding path program 1 times [2022-10-16 02:29:54,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:54,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684190051] [2022-10-16 02:29:54,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:54,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:55,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:55,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:55,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 02:29:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:55,145 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:55,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:55,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684190051] [2022-10-16 02:29:55,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684190051] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:55,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:55,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:29:55,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310417679] [2022-10-16 02:29:55,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:55,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:29:55,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:55,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:29:55,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:55,150 INFO L87 Difference]: Start difference. First operand 643 states and 955 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:55,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:55,517 INFO L93 Difference]: Finished difference Result 1173 states and 1772 transitions. [2022-10-16 02:29:55,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:29:55,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 72 [2022-10-16 02:29:55,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:55,533 INFO L225 Difference]: With dead ends: 1173 [2022-10-16 02:29:55,533 INFO L226 Difference]: Without dead ends: 1173 [2022-10-16 02:29:55,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:29:55,536 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 783 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:55,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 775 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:29:55,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2022-10-16 02:29:55,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 768. [2022-10-16 02:29:55,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 606 states have (on average 1.4372937293729373) internal successors, (871), 609 states have internal predecessors, (871), 124 states have call successors, (124), 37 states have call predecessors, (124), 37 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 02:29:55,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1119 transitions. [2022-10-16 02:29:55,591 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1119 transitions. Word has length 72 [2022-10-16 02:29:55,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:55,591 INFO L495 AbstractCegarLoop]: Abstraction has 768 states and 1119 transitions. [2022-10-16 02:29:55,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:55,592 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1119 transitions. [2022-10-16 02:29:55,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 02:29:55,594 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:55,594 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:55,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 02:29:55,594 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:55,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:55,595 INFO L85 PathProgramCache]: Analyzing trace with hash -221882142, now seen corresponding path program 1 times [2022-10-16 02:29:55,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:55,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608988994] [2022-10-16 02:29:55,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:55,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:55,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:55,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:55,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 02:29:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:55,735 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:55,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:55,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608988994] [2022-10-16 02:29:55,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608988994] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:55,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:55,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:29:55,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451827227] [2022-10-16 02:29:55,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:55,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:29:55,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:55,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:29:55,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:55,738 INFO L87 Difference]: Start difference. First operand 768 states and 1119 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:56,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:56,046 INFO L93 Difference]: Finished difference Result 1177 states and 1772 transitions. [2022-10-16 02:29:56,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:29:56,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 73 [2022-10-16 02:29:56,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:56,056 INFO L225 Difference]: With dead ends: 1177 [2022-10-16 02:29:56,056 INFO L226 Difference]: Without dead ends: 1177 [2022-10-16 02:29:56,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:29:56,057 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 780 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:56,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 777 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:29:56,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-10-16 02:29:56,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 776. [2022-10-16 02:29:56,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 614 states have (on average 1.4315960912052117) internal successors, (879), 617 states have internal predecessors, (879), 124 states have call successors, (124), 37 states have call predecessors, (124), 37 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 02:29:56,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1127 transitions. [2022-10-16 02:29:56,106 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1127 transitions. Word has length 73 [2022-10-16 02:29:56,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:56,108 INFO L495 AbstractCegarLoop]: Abstraction has 776 states and 1127 transitions. [2022-10-16 02:29:56,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:56,108 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1127 transitions. [2022-10-16 02:29:56,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 02:29:56,111 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:56,111 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:56,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:29:56,115 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:56,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:56,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1379275244, now seen corresponding path program 1 times [2022-10-16 02:29:56,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:56,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311164407] [2022-10-16 02:29:56,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:56,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 02:29:56,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:56,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:56,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311164407] [2022-10-16 02:29:56,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311164407] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:56,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:56,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:56,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831251964] [2022-10-16 02:29:56,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:56,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:56,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:56,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:56,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:56,366 INFO L87 Difference]: Start difference. First operand 776 states and 1127 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:56,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:56,643 INFO L93 Difference]: Finished difference Result 1177 states and 1768 transitions. [2022-10-16 02:29:56,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:56,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 75 [2022-10-16 02:29:56,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:56,652 INFO L225 Difference]: With dead ends: 1177 [2022-10-16 02:29:56,652 INFO L226 Difference]: Without dead ends: 1177 [2022-10-16 02:29:56,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:56,653 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 237 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:56,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 744 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:29:56,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-10-16 02:29:56,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 776. [2022-10-16 02:29:56,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 614 states have (on average 1.4250814332247557) internal successors, (875), 617 states have internal predecessors, (875), 124 states have call successors, (124), 37 states have call predecessors, (124), 37 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 02:29:56,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1123 transitions. [2022-10-16 02:29:56,691 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1123 transitions. Word has length 75 [2022-10-16 02:29:56,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:56,691 INFO L495 AbstractCegarLoop]: Abstraction has 776 states and 1123 transitions. [2022-10-16 02:29:56,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:56,692 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1123 transitions. [2022-10-16 02:29:56,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 02:29:56,693 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:56,693 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:56,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:29:56,694 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:56,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:56,694 INFO L85 PathProgramCache]: Analyzing trace with hash -156149797, now seen corresponding path program 1 times [2022-10-16 02:29:56,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:56,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013466758] [2022-10-16 02:29:56,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:56,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,918 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:56,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:56,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013466758] [2022-10-16 02:29:56,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013466758] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:56,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:56,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:56,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813017652] [2022-10-16 02:29:56,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:56,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:56,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:56,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:56,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:56,921 INFO L87 Difference]: Start difference. First operand 776 states and 1123 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 02:29:56,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:56,956 INFO L93 Difference]: Finished difference Result 796 states and 1139 transitions. [2022-10-16 02:29:56,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:56,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 76 [2022-10-16 02:29:56,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:56,962 INFO L225 Difference]: With dead ends: 796 [2022-10-16 02:29:56,963 INFO L226 Difference]: Without dead ends: 796 [2022-10-16 02:29:56,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:56,964 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 6 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:56,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 869 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:56,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2022-10-16 02:29:56,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 796. [2022-10-16 02:29:56,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 630 states have (on average 1.4142857142857144) internal successors, (891), 633 states have internal predecessors, (891), 124 states have call successors, (124), 41 states have call predecessors, (124), 41 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 02:29:56,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1139 transitions. [2022-10-16 02:29:56,999 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1139 transitions. Word has length 76 [2022-10-16 02:29:56,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:56,999 INFO L495 AbstractCegarLoop]: Abstraction has 796 states and 1139 transitions. [2022-10-16 02:29:56,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 02:29:57,000 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1139 transitions. [2022-10-16 02:29:57,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-16 02:29:57,002 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:57,002 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:57,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 02:29:57,002 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:57,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:57,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1992242591, now seen corresponding path program 1 times [2022-10-16 02:29:57,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:57,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946767878] [2022-10-16 02:29:57,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:57,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:57,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:57,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946767878] [2022-10-16 02:29:57,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946767878] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:57,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:57,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:57,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433780444] [2022-10-16 02:29:57,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:57,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:57,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:57,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:57,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:57,238 INFO L87 Difference]: Start difference. First operand 796 states and 1139 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:29:57,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:57,282 INFO L93 Difference]: Finished difference Result 816 states and 1155 transitions. [2022-10-16 02:29:57,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:57,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 84 [2022-10-16 02:29:57,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:57,288 INFO L225 Difference]: With dead ends: 816 [2022-10-16 02:29:57,288 INFO L226 Difference]: Without dead ends: 816 [2022-10-16 02:29:57,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:57,289 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 6 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:57,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 855 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:57,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2022-10-16 02:29:57,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2022-10-16 02:29:57,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 646 states have (on average 1.4040247678018576) internal successors, (907), 649 states have internal predecessors, (907), 124 states have call successors, (124), 45 states have call predecessors, (124), 45 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 02:29:57,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1155 transitions. [2022-10-16 02:29:57,321 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1155 transitions. Word has length 84 [2022-10-16 02:29:57,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:57,322 INFO L495 AbstractCegarLoop]: Abstraction has 816 states and 1155 transitions. [2022-10-16 02:29:57,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:29:57,322 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1155 transitions. [2022-10-16 02:29:57,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 02:29:57,324 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:57,324 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:57,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 02:29:57,325 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:57,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:57,325 INFO L85 PathProgramCache]: Analyzing trace with hash -115565173, now seen corresponding path program 1 times [2022-10-16 02:29:57,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:57,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426801938] [2022-10-16 02:29:57,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:57,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,527 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:57,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:57,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426801938] [2022-10-16 02:29:57,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426801938] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:57,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:57,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:57,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252593369] [2022-10-16 02:29:57,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:57,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:57,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:57,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:57,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:57,531 INFO L87 Difference]: Start difference. First operand 816 states and 1155 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 02:29:57,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:57,571 INFO L93 Difference]: Finished difference Result 832 states and 1167 transitions. [2022-10-16 02:29:57,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:57,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 92 [2022-10-16 02:29:57,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:57,578 INFO L225 Difference]: With dead ends: 832 [2022-10-16 02:29:57,578 INFO L226 Difference]: Without dead ends: 832 [2022-10-16 02:29:57,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:57,579 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 5 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:57,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 864 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:57,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-10-16 02:29:57,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2022-10-16 02:29:57,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 658 states have (on average 1.3966565349544073) internal successors, (919), 661 states have internal predecessors, (919), 124 states have call successors, (124), 49 states have call predecessors, (124), 49 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 02:29:57,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1167 transitions. [2022-10-16 02:29:57,612 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1167 transitions. Word has length 92 [2022-10-16 02:29:57,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:57,612 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1167 transitions. [2022-10-16 02:29:57,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 02:29:57,613 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1167 transitions. [2022-10-16 02:29:57,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 02:29:57,615 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:57,615 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:57,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:29:57,616 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:57,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:57,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2014073166, now seen corresponding path program 1 times [2022-10-16 02:29:57,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:57,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087471392] [2022-10-16 02:29:57,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:57,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,885 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:29:57,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:57,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087471392] [2022-10-16 02:29:57,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087471392] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:57,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:57,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:57,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087479048] [2022-10-16 02:29:57,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:57,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:57,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:57,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:57,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:57,888 INFO L87 Difference]: Start difference. First operand 832 states and 1167 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 02:29:57,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:57,935 INFO L93 Difference]: Finished difference Result 852 states and 1183 transitions. [2022-10-16 02:29:57,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:57,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 92 [2022-10-16 02:29:57,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:57,941 INFO L225 Difference]: With dead ends: 852 [2022-10-16 02:29:57,941 INFO L226 Difference]: Without dead ends: 852 [2022-10-16 02:29:57,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:57,943 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 6 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:57,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 855 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2022-10-16 02:29:57,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 852. [2022-10-16 02:29:57,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 674 states have (on average 1.3872403560830862) internal successors, (935), 677 states have internal predecessors, (935), 124 states have call successors, (124), 53 states have call predecessors, (124), 53 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 02:29:57,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1183 transitions. [2022-10-16 02:29:57,974 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1183 transitions. Word has length 92 [2022-10-16 02:29:57,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:57,974 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1183 transitions. [2022-10-16 02:29:57,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 02:29:57,975 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1183 transitions. [2022-10-16 02:29:57,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-16 02:29:57,978 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:57,978 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:57,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:29:57,978 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:57,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:57,979 INFO L85 PathProgramCache]: Analyzing trace with hash -794519374, now seen corresponding path program 1 times [2022-10-16 02:29:57,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:57,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389116812] [2022-10-16 02:29:57,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:57,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,250 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 02:29:58,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:58,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389116812] [2022-10-16 02:29:58,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389116812] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:58,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:58,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:58,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403638010] [2022-10-16 02:29:58,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:58,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:58,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:58,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:58,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:58,253 INFO L87 Difference]: Start difference. First operand 852 states and 1183 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 02:29:58,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:58,291 INFO L93 Difference]: Finished difference Result 876 states and 1203 transitions. [2022-10-16 02:29:58,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:58,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 100 [2022-10-16 02:29:58,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:58,298 INFO L225 Difference]: With dead ends: 876 [2022-10-16 02:29:58,298 INFO L226 Difference]: Without dead ends: 876 [2022-10-16 02:29:58,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:58,300 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 7 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:58,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 866 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:58,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-10-16 02:29:58,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2022-10-16 02:29:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 694 states have (on average 1.3760806916426513) internal successors, (955), 697 states have internal predecessors, (955), 124 states have call successors, (124), 57 states have call predecessors, (124), 57 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 02:29:58,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1203 transitions. [2022-10-16 02:29:58,334 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1203 transitions. Word has length 100 [2022-10-16 02:29:58,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:58,334 INFO L495 AbstractCegarLoop]: Abstraction has 876 states and 1203 transitions. [2022-10-16 02:29:58,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 02:29:58,335 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1203 transitions. [2022-10-16 02:29:58,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 02:29:58,338 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:58,338 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:58,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:29:58,338 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:58,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:58,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1401758325, now seen corresponding path program 1 times [2022-10-16 02:29:58,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:58,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023709480] [2022-10-16 02:29:58,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:58,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:29:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,728 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:29:58,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:58,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023709480] [2022-10-16 02:29:58,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023709480] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:58,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:58,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:29:58,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004032878] [2022-10-16 02:29:58,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:58,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:29:58,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:58,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:29:58,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:29:58,731 INFO L87 Difference]: Start difference. First operand 876 states and 1203 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-16 02:29:58,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:58,995 INFO L93 Difference]: Finished difference Result 1763 states and 2456 transitions. [2022-10-16 02:29:58,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:29:58,996 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 103 [2022-10-16 02:29:58,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:59,009 INFO L225 Difference]: With dead ends: 1763 [2022-10-16 02:29:59,010 INFO L226 Difference]: Without dead ends: 1763 [2022-10-16 02:29:59,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:29:59,011 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 392 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:59,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 2281 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:29:59,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2022-10-16 02:29:59,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1160. [2022-10-16 02:29:59,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 905 states have (on average 1.3668508287292818) internal successors, (1237), 910 states have internal predecessors, (1237), 172 states have call successors, (172), 82 states have call predecessors, (172), 82 states have return successors, (172), 167 states have call predecessors, (172), 172 states have call successors, (172) [2022-10-16 02:29:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1581 transitions. [2022-10-16 02:29:59,065 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1581 transitions. Word has length 103 [2022-10-16 02:29:59,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:59,066 INFO L495 AbstractCegarLoop]: Abstraction has 1160 states and 1581 transitions. [2022-10-16 02:29:59,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-16 02:29:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1581 transitions. [2022-10-16 02:29:59,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 02:29:59,068 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:59,068 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:59,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:29:59,069 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:59,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:59,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1324741963, now seen corresponding path program 1 times [2022-10-16 02:29:59,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:59,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860545198] [2022-10-16 02:29:59,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:59,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:29:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,296 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:29:59,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:59,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860545198] [2022-10-16 02:29:59,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860545198] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:59,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:59,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:59,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019423542] [2022-10-16 02:29:59,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:59,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:59,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:59,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:59,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:59,299 INFO L87 Difference]: Start difference. First operand 1160 states and 1581 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 02:29:59,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:59,360 INFO L93 Difference]: Finished difference Result 1184 states and 1599 transitions. [2022-10-16 02:29:59,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:59,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 107 [2022-10-16 02:29:59,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:59,367 INFO L225 Difference]: With dead ends: 1184 [2022-10-16 02:29:59,367 INFO L226 Difference]: Without dead ends: 1184 [2022-10-16 02:29:59,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:59,368 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 5 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:59,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 864 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:59,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2022-10-16 02:29:59,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1184. [2022-10-16 02:29:59,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 923 states have (on average 1.3596966413867821) internal successors, (1255), 928 states have internal predecessors, (1255), 172 states have call successors, (172), 88 states have call predecessors, (172), 88 states have return successors, (172), 167 states have call predecessors, (172), 172 states have call successors, (172) [2022-10-16 02:29:59,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1599 transitions. [2022-10-16 02:29:59,413 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1599 transitions. Word has length 107 [2022-10-16 02:29:59,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:59,413 INFO L495 AbstractCegarLoop]: Abstraction has 1184 states and 1599 transitions. [2022-10-16 02:29:59,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 02:29:59,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1599 transitions. [2022-10-16 02:29:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-16 02:29:59,416 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:59,416 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:59,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 02:29:59,417 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:59,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:59,417 INFO L85 PathProgramCache]: Analyzing trace with hash 682815691, now seen corresponding path program 1 times [2022-10-16 02:29:59,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:59,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666427624] [2022-10-16 02:29:59,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:59,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:29:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:29:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:29:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:29:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:29:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:29:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:29:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,790 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 02:29:59,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:59,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666427624] [2022-10-16 02:29:59,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666427624] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:59,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:59,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:29:59,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386409545] [2022-10-16 02:29:59,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:59,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:29:59,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:59,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:29:59,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:29:59,793 INFO L87 Difference]: Start difference. First operand 1184 states and 1599 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 02:29:59,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:59,897 INFO L93 Difference]: Finished difference Result 1653 states and 2336 transitions. [2022-10-16 02:29:59,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:29:59,898 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 106 [2022-10-16 02:29:59,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:59,908 INFO L225 Difference]: With dead ends: 1653 [2022-10-16 02:29:59,909 INFO L226 Difference]: Without dead ends: 1653 [2022-10-16 02:29:59,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:29:59,910 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 261 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 2251 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:59,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 2251 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:29:59,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2022-10-16 02:29:59,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1192. [2022-10-16 02:29:59,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 927 states have (on average 1.3581445523193096) internal successors, (1259), 934 states have internal predecessors, (1259), 174 states have call successors, (174), 90 states have call predecessors, (174), 90 states have return successors, (174), 167 states have call predecessors, (174), 174 states have call successors, (174) [2022-10-16 02:29:59,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1607 transitions. [2022-10-16 02:29:59,967 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1607 transitions. Word has length 106 [2022-10-16 02:29:59,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:59,967 INFO L495 AbstractCegarLoop]: Abstraction has 1192 states and 1607 transitions. [2022-10-16 02:29:59,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 02:29:59,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1607 transitions. [2022-10-16 02:29:59,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-16 02:29:59,970 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:59,970 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:59,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 02:29:59,971 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:59,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:59,971 INFO L85 PathProgramCache]: Analyzing trace with hash -614162587, now seen corresponding path program 1 times [2022-10-16 02:29:59,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:59,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692234339] [2022-10-16 02:29:59,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:59,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:30:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:30:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:30:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:30:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:30:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,212 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 02:30:00,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:00,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692234339] [2022-10-16 02:30:00,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692234339] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:00,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:00,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:30:00,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784301870] [2022-10-16 02:30:00,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:00,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:30:00,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:00,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:30:00,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:30:00,215 INFO L87 Difference]: Start difference. First operand 1192 states and 1607 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 02:30:00,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:00,394 INFO L93 Difference]: Finished difference Result 1554 states and 2137 transitions. [2022-10-16 02:30:00,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:30:00,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 109 [2022-10-16 02:30:00,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:00,403 INFO L225 Difference]: With dead ends: 1554 [2022-10-16 02:30:00,404 INFO L226 Difference]: Without dead ends: 1554 [2022-10-16 02:30:00,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:30:00,405 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 524 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 2264 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:00,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 2264 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:00,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2022-10-16 02:30:00,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1236. [2022-10-16 02:30:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 982 states have (on average 1.3482688391038697) internal successors, (1324), 994 states have internal predecessors, (1324), 162 states have call successors, (162), 91 states have call predecessors, (162), 91 states have return successors, (162), 150 states have call predecessors, (162), 162 states have call successors, (162) [2022-10-16 02:30:00,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1648 transitions. [2022-10-16 02:30:00,459 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1648 transitions. Word has length 109 [2022-10-16 02:30:00,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:00,460 INFO L495 AbstractCegarLoop]: Abstraction has 1236 states and 1648 transitions. [2022-10-16 02:30:00,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 02:30:00,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1648 transitions. [2022-10-16 02:30:00,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-10-16 02:30:00,462 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:00,462 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:00,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 02:30:00,463 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:00,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:00,463 INFO L85 PathProgramCache]: Analyzing trace with hash 326540891, now seen corresponding path program 1 times [2022-10-16 02:30:00,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:00,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192715031] [2022-10-16 02:30:00,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:00,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:30:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:30:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:30:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:30:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:30:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 02:30:00,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:00,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192715031] [2022-10-16 02:30:00,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192715031] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:00,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:00,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:30:00,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798576073] [2022-10-16 02:30:00,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:00,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:30:00,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:00,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:30:00,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:30:00,896 INFO L87 Difference]: Start difference. First operand 1236 states and 1648 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-16 02:30:01,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:01,100 INFO L93 Difference]: Finished difference Result 1582 states and 2171 transitions. [2022-10-16 02:30:01,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:30:01,101 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 111 [2022-10-16 02:30:01,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:01,111 INFO L225 Difference]: With dead ends: 1582 [2022-10-16 02:30:01,111 INFO L226 Difference]: Without dead ends: 1582 [2022-10-16 02:30:01,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:30:01,112 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 396 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:01,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 2414 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:01,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1582 states. [2022-10-16 02:30:01,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1582 to 1123. [2022-10-16 02:30:01,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 896 states have (on average 1.3493303571428572) internal successors, (1209), 906 states have internal predecessors, (1209), 145 states have call successors, (145), 81 states have call predecessors, (145), 81 states have return successors, (145), 135 states have call predecessors, (145), 145 states have call successors, (145) [2022-10-16 02:30:01,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1499 transitions. [2022-10-16 02:30:01,162 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1499 transitions. Word has length 111 [2022-10-16 02:30:01,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:01,162 INFO L495 AbstractCegarLoop]: Abstraction has 1123 states and 1499 transitions. [2022-10-16 02:30:01,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-16 02:30:01,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1499 transitions. [2022-10-16 02:30:01,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 02:30:01,165 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:01,165 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:01,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 02:30:01,165 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:01,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:01,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2059853897, now seen corresponding path program 1 times [2022-10-16 02:30:01,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:01,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708905727] [2022-10-16 02:30:01,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:01,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:30:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:30:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:30:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:30:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:30:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:30:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 02:30:01,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:01,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708905727] [2022-10-16 02:30:01,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708905727] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:01,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:01,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 02:30:01,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886270724] [2022-10-16 02:30:01,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:01,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 02:30:01,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:01,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 02:30:01,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:30:01,624 INFO L87 Difference]: Start difference. First operand 1123 states and 1499 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 02:30:02,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:02,251 INFO L93 Difference]: Finished difference Result 1683 states and 2313 transitions. [2022-10-16 02:30:02,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 02:30:02,252 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 112 [2022-10-16 02:30:02,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:02,262 INFO L225 Difference]: With dead ends: 1683 [2022-10-16 02:30:02,262 INFO L226 Difference]: Without dead ends: 1683 [2022-10-16 02:30:02,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 02:30:02,263 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 925 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 2152 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:02,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 2152 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 02:30:02,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2022-10-16 02:30:02,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1139. [2022-10-16 02:30:02,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 904 states have (on average 1.329646017699115) internal successors, (1202), 915 states have internal predecessors, (1202), 148 states have call successors, (148), 86 states have call predecessors, (148), 86 states have return successors, (148), 137 states have call predecessors, (148), 148 states have call successors, (148) [2022-10-16 02:30:02,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1498 transitions. [2022-10-16 02:30:02,309 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1498 transitions. Word has length 112 [2022-10-16 02:30:02,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:02,310 INFO L495 AbstractCegarLoop]: Abstraction has 1139 states and 1498 transitions. [2022-10-16 02:30:02,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 02:30:02,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1498 transitions. [2022-10-16 02:30:02,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 02:30:02,312 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:02,312 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:02,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 02:30:02,313 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:02,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:02,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1941201166, now seen corresponding path program 1 times [2022-10-16 02:30:02,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:02,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363733777] [2022-10-16 02:30:02,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:02,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:30:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:30:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:30:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:30:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:30:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:30:02,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:02,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363733777] [2022-10-16 02:30:02,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363733777] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:02,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:02,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:02,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080232837] [2022-10-16 02:30:02,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:02,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:02,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:02,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:02,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:02,460 INFO L87 Difference]: Start difference. First operand 1139 states and 1498 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:02,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:02,644 INFO L93 Difference]: Finished difference Result 2287 states and 3046 transitions. [2022-10-16 02:30:02,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:02,645 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 112 [2022-10-16 02:30:02,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:02,660 INFO L225 Difference]: With dead ends: 2287 [2022-10-16 02:30:02,660 INFO L226 Difference]: Without dead ends: 2287 [2022-10-16 02:30:02,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:02,662 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 437 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:02,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1223 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:02,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2287 states. [2022-10-16 02:30:02,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2287 to 1935. [2022-10-16 02:30:02,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1510 states have (on average 1.3271523178807947) internal successors, (2004), 1529 states have internal predecessors, (2004), 272 states have call successors, (272), 152 states have call predecessors, (272), 152 states have return successors, (272), 253 states have call predecessors, (272), 272 states have call successors, (272) [2022-10-16 02:30:02,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2548 transitions. [2022-10-16 02:30:02,741 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2548 transitions. Word has length 112 [2022-10-16 02:30:02,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:02,742 INFO L495 AbstractCegarLoop]: Abstraction has 1935 states and 2548 transitions. [2022-10-16 02:30:02,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:02,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2548 transitions. [2022-10-16 02:30:02,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-16 02:30:02,745 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:02,745 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:02,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 02:30:02,746 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:02,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:02,747 INFO L85 PathProgramCache]: Analyzing trace with hash -2103041469, now seen corresponding path program 1 times [2022-10-16 02:30:02,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:02,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471989732] [2022-10-16 02:30:02,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:02,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:30:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:30:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:30:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:30:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:30:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,168 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 02:30:03,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:03,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471989732] [2022-10-16 02:30:03,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471989732] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:03,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:03,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:30:03,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70738782] [2022-10-16 02:30:03,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:03,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:30:03,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:03,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:30:03,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:30:03,170 INFO L87 Difference]: Start difference. First operand 1935 states and 2548 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:03,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:03,798 INFO L93 Difference]: Finished difference Result 2800 states and 3788 transitions. [2022-10-16 02:30:03,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 02:30:03,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 114 [2022-10-16 02:30:03,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:03,815 INFO L225 Difference]: With dead ends: 2800 [2022-10-16 02:30:03,815 INFO L226 Difference]: Without dead ends: 2800 [2022-10-16 02:30:03,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 02:30:03,816 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 802 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:03,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 2505 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 02:30:03,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2022-10-16 02:30:03,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 1954. [2022-10-16 02:30:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1516 states have (on average 1.3232189973614776) internal successors, (2006), 1536 states have internal predecessors, (2006), 280 states have call successors, (280), 157 states have call predecessors, (280), 157 states have return successors, (280), 260 states have call predecessors, (280), 280 states have call successors, (280) [2022-10-16 02:30:03,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2566 transitions. [2022-10-16 02:30:03,919 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2566 transitions. Word has length 114 [2022-10-16 02:30:03,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:03,920 INFO L495 AbstractCegarLoop]: Abstraction has 1954 states and 2566 transitions. [2022-10-16 02:30:03,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:03,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2566 transitions. [2022-10-16 02:30:03,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-10-16 02:30:03,922 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:03,922 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:03,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 02:30:03,923 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:03,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:03,924 INFO L85 PathProgramCache]: Analyzing trace with hash 985009634, now seen corresponding path program 1 times [2022-10-16 02:30:03,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:03,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921769600] [2022-10-16 02:30:03,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:03,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 02:30:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,068 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:30:04,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:04,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921769600] [2022-10-16 02:30:04,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921769600] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:04,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:04,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:04,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524387662] [2022-10-16 02:30:04,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:04,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:04,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:04,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:04,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:04,071 INFO L87 Difference]: Start difference. First operand 1954 states and 2566 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:04,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:04,237 INFO L93 Difference]: Finished difference Result 3584 states and 4740 transitions. [2022-10-16 02:30:04,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:04,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 115 [2022-10-16 02:30:04,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:04,258 INFO L225 Difference]: With dead ends: 3584 [2022-10-16 02:30:04,258 INFO L226 Difference]: Without dead ends: 3584 [2022-10-16 02:30:04,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:04,259 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 484 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:04,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1287 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:04,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2022-10-16 02:30:04,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3015. [2022-10-16 02:30:04,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 2302 states have (on average 1.3192875760208513) internal successors, (3037), 2333 states have internal predecessors, (3037), 460 states have call successors, (460), 252 states have call predecessors, (460), 252 states have return successors, (460), 429 states have call predecessors, (460), 460 states have call successors, (460) [2022-10-16 02:30:04,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 3957 transitions. [2022-10-16 02:30:04,377 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 3957 transitions. Word has length 115 [2022-10-16 02:30:04,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:04,377 INFO L495 AbstractCegarLoop]: Abstraction has 3015 states and 3957 transitions. [2022-10-16 02:30:04,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:04,378 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 3957 transitions. [2022-10-16 02:30:04,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-10-16 02:30:04,380 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:04,380 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:04,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 02:30:04,381 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:04,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:04,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1237817774, now seen corresponding path program 1 times [2022-10-16 02:30:04,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:04,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408852107] [2022-10-16 02:30:04,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:04,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 02:30:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 02:30:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 02:30:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 02:30:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 02:30:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 02:30:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 02:30:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,541 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:30:04,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:04,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408852107] [2022-10-16 02:30:04,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408852107] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:04,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:04,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:04,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148186728] [2022-10-16 02:30:04,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:04,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:04,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:04,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:04,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:04,544 INFO L87 Difference]: Start difference. First operand 3015 states and 3957 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:04,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:04,730 INFO L93 Difference]: Finished difference Result 4626 states and 6064 transitions. [2022-10-16 02:30:04,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:04,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 115 [2022-10-16 02:30:04,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:04,750 INFO L225 Difference]: With dead ends: 4626 [2022-10-16 02:30:04,750 INFO L226 Difference]: Without dead ends: 4626 [2022-10-16 02:30:04,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:04,751 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 431 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:04,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1283 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:04,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4626 states. [2022-10-16 02:30:04,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4626 to 4292. [2022-10-16 02:30:04,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4292 states, 3255 states have (on average 1.3170506912442397) internal successors, (4287), 3299 states have internal predecessors, (4287), 672 states have call successors, (672), 364 states have call predecessors, (672), 364 states have return successors, (672), 628 states have call predecessors, (672), 672 states have call successors, (672) [2022-10-16 02:30:04,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 5631 transitions. [2022-10-16 02:30:04,937 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 5631 transitions. Word has length 115 [2022-10-16 02:30:04,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:04,937 INFO L495 AbstractCegarLoop]: Abstraction has 4292 states and 5631 transitions. [2022-10-16 02:30:04,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:04,938 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 5631 transitions. [2022-10-16 02:30:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-16 02:30:04,941 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:04,942 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:04,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 02:30:04,942 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:04,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:04,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1950956728, now seen corresponding path program 1 times [2022-10-16 02:30:04,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:04,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518037110] [2022-10-16 02:30:04,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:04,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 02:30:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 02:30:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 02:30:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-16 02:30:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 02:30:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 02:30:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 02:30:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,045 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:30:05,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:05,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518037110] [2022-10-16 02:30:05,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518037110] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:05,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:05,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:30:05,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599264625] [2022-10-16 02:30:05,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:05,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:30:05,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:05,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:30:05,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:30:05,048 INFO L87 Difference]: Start difference. First operand 4292 states and 5631 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:05,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:05,199 INFO L93 Difference]: Finished difference Result 5818 states and 8036 transitions. [2022-10-16 02:30:05,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:30:05,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 116 [2022-10-16 02:30:05,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:05,224 INFO L225 Difference]: With dead ends: 5818 [2022-10-16 02:30:05,224 INFO L226 Difference]: Without dead ends: 5818 [2022-10-16 02:30:05,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:30:05,225 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 151 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:05,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 701 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:05,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5818 states. [2022-10-16 02:30:05,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5818 to 4298. [2022-10-16 02:30:05,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4298 states, 3261 states have (on average 1.3164673413063477) internal successors, (4293), 3305 states have internal predecessors, (4293), 672 states have call successors, (672), 364 states have call predecessors, (672), 364 states have return successors, (672), 628 states have call predecessors, (672), 672 states have call successors, (672) [2022-10-16 02:30:05,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4298 states to 4298 states and 5637 transitions. [2022-10-16 02:30:05,409 INFO L78 Accepts]: Start accepts. Automaton has 4298 states and 5637 transitions. Word has length 116 [2022-10-16 02:30:05,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:05,410 INFO L495 AbstractCegarLoop]: Abstraction has 4298 states and 5637 transitions. [2022-10-16 02:30:05,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:05,410 INFO L276 IsEmpty]: Start isEmpty. Operand 4298 states and 5637 transitions. [2022-10-16 02:30:05,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-10-16 02:30:05,413 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:05,414 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:05,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 02:30:05,414 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:05,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:05,415 INFO L85 PathProgramCache]: Analyzing trace with hash -2025473139, now seen corresponding path program 1 times [2022-10-16 02:30:05,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:05,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376566088] [2022-10-16 02:30:05,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:05,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 02:30:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 02:30:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 02:30:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 02:30:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 02:30:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 02:30:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 02:30:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,679 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:30:05,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:05,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376566088] [2022-10-16 02:30:05,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376566088] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:05,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:05,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:05,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722971181] [2022-10-16 02:30:05,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:05,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:05,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:05,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:05,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:05,683 INFO L87 Difference]: Start difference. First operand 4298 states and 5637 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:05,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:05,807 INFO L93 Difference]: Finished difference Result 4802 states and 6541 transitions. [2022-10-16 02:30:05,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:05,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 117 [2022-10-16 02:30:05,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:05,835 INFO L225 Difference]: With dead ends: 4802 [2022-10-16 02:30:05,835 INFO L226 Difference]: Without dead ends: 4802 [2022-10-16 02:30:05,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:05,836 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 369 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:05,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 881 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:05,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4802 states. [2022-10-16 02:30:06,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4802 to 3865. [2022-10-16 02:30:06,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3865 states, 2911 states have (on average 1.3229130882858124) internal successors, (3851), 2945 states have internal predecessors, (3851), 620 states have call successors, (620), 333 states have call predecessors, (620), 333 states have return successors, (620), 586 states have call predecessors, (620), 620 states have call successors, (620) [2022-10-16 02:30:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3865 states to 3865 states and 5091 transitions. [2022-10-16 02:30:06,061 INFO L78 Accepts]: Start accepts. Automaton has 3865 states and 5091 transitions. Word has length 117 [2022-10-16 02:30:06,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:06,061 INFO L495 AbstractCegarLoop]: Abstraction has 3865 states and 5091 transitions. [2022-10-16 02:30:06,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:06,067 INFO L276 IsEmpty]: Start isEmpty. Operand 3865 states and 5091 transitions. [2022-10-16 02:30:06,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 02:30:06,069 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:06,069 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:06,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 02:30:06,070 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:06,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:06,070 INFO L85 PathProgramCache]: Analyzing trace with hash 183157843, now seen corresponding path program 1 times [2022-10-16 02:30:06,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:06,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145125053] [2022-10-16 02:30:06,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:06,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 02:30:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 02:30:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 02:30:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-16 02:30:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 02:30:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 02:30:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 02:30:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,167 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:30:06,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:06,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145125053] [2022-10-16 02:30:06,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145125053] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:06,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:06,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:30:06,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761054810] [2022-10-16 02:30:06,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:06,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:30:06,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:06,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:30:06,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:30:06,171 INFO L87 Difference]: Start difference. First operand 3865 states and 5091 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:06,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:06,317 INFO L93 Difference]: Finished difference Result 4851 states and 6647 transitions. [2022-10-16 02:30:06,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:30:06,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 118 [2022-10-16 02:30:06,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:06,338 INFO L225 Difference]: With dead ends: 4851 [2022-10-16 02:30:06,338 INFO L226 Difference]: Without dead ends: 4851 [2022-10-16 02:30:06,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:30:06,340 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 151 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:06,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 680 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:06,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4851 states. [2022-10-16 02:30:06,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4851 to 3875. [2022-10-16 02:30:06,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3875 states, 2921 states have (on average 1.3218076001369394) internal successors, (3861), 2955 states have internal predecessors, (3861), 620 states have call successors, (620), 333 states have call predecessors, (620), 333 states have return successors, (620), 586 states have call predecessors, (620), 620 states have call successors, (620) [2022-10-16 02:30:06,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3875 states to 3875 states and 5101 transitions. [2022-10-16 02:30:06,507 INFO L78 Accepts]: Start accepts. Automaton has 3875 states and 5101 transitions. Word has length 118 [2022-10-16 02:30:06,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:06,508 INFO L495 AbstractCegarLoop]: Abstraction has 3875 states and 5101 transitions. [2022-10-16 02:30:06,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:06,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3875 states and 5101 transitions. [2022-10-16 02:30:06,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 02:30:06,510 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:06,511 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:06,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-10-16 02:30:06,511 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:06,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:06,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1515793806, now seen corresponding path program 1 times [2022-10-16 02:30:06,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:06,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611841218] [2022-10-16 02:30:06,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:06,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 02:30:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 02:30:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 02:30:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-16 02:30:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 02:30:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 02:30:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 02:30:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:30:06,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:06,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611841218] [2022-10-16 02:30:06,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611841218] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:06,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:06,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:06,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434470688] [2022-10-16 02:30:06,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:06,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:06,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:06,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:06,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:06,741 INFO L87 Difference]: Start difference. First operand 3875 states and 5101 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:06,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:06,840 INFO L93 Difference]: Finished difference Result 4722 states and 6476 transitions. [2022-10-16 02:30:06,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:06,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 118 [2022-10-16 02:30:06,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:06,860 INFO L225 Difference]: With dead ends: 4722 [2022-10-16 02:30:06,860 INFO L226 Difference]: Without dead ends: 4722 [2022-10-16 02:30:06,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:06,861 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 284 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:06,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 912 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:06,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4722 states. [2022-10-16 02:30:06,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4722 to 2925. [2022-10-16 02:30:06,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2205 states have (on average 1.3133786848072562) internal successors, (2896), 2224 states have internal predecessors, (2896), 469 states have call successors, (469), 250 states have call predecessors, (469), 250 states have return successors, (469), 450 states have call predecessors, (469), 469 states have call successors, (469) [2022-10-16 02:30:07,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 3834 transitions. [2022-10-16 02:30:07,004 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 3834 transitions. Word has length 118 [2022-10-16 02:30:07,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:07,005 INFO L495 AbstractCegarLoop]: Abstraction has 2925 states and 3834 transitions. [2022-10-16 02:30:07,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 3834 transitions. [2022-10-16 02:30:07,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-10-16 02:30:07,012 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:07,012 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:07,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-10-16 02:30:07,013 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:07,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:07,014 INFO L85 PathProgramCache]: Analyzing trace with hash -266144705, now seen corresponding path program 1 times [2022-10-16 02:30:07,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:07,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116056936] [2022-10-16 02:30:07,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:07,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 02:30:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:30:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:30:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:30:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:30:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 02:30:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-16 02:30:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-16 02:30:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-10-16 02:30:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 02:30:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-10-16 02:30:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-16 02:30:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,604 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 16 proven. 28 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-10-16 02:30:07,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:07,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116056936] [2022-10-16 02:30:07,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116056936] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:07,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720105566] [2022-10-16 02:30:07,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:07,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:07,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:07,609 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:07,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 02:30:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 02:30:07,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 77 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 02:30:08,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:08,510 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-10-16 02:30:08,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720105566] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:08,510 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:08,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2022-10-16 02:30:08,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328465360] [2022-10-16 02:30:08,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:08,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 02:30:08,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:08,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 02:30:08,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-10-16 02:30:08,513 INFO L87 Difference]: Start difference. First operand 2925 states and 3834 transitions. Second operand has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 13 states have internal predecessors, (262), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2022-10-16 02:30:11,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:11,990 INFO L93 Difference]: Finished difference Result 7352 states and 10452 transitions. [2022-10-16 02:30:11,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-10-16 02:30:11,991 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 13 states have internal predecessors, (262), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) Word has length 185 [2022-10-16 02:30:11,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:12,018 INFO L225 Difference]: With dead ends: 7352 [2022-10-16 02:30:12,018 INFO L226 Difference]: Without dead ends: 7352 [2022-10-16 02:30:12,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 402 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1358 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=749, Invalid=3411, Unknown=0, NotChecked=0, Total=4160 [2022-10-16 02:30:12,021 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 3856 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 1020 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3856 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 2896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1020 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:12,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3856 Valid, 3079 Invalid, 2896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1020 Valid, 1876 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-10-16 02:30:12,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7352 states. [2022-10-16 02:30:12,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7352 to 3449. [2022-10-16 02:30:12,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3449 states, 2622 states have (on average 1.3093058733790999) internal successors, (3433), 2642 states have internal predecessors, (3433), 531 states have call successors, (531), 295 states have call predecessors, (531), 295 states have return successors, (531), 511 states have call predecessors, (531), 531 states have call successors, (531) [2022-10-16 02:30:12,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3449 states to 3449 states and 4495 transitions. [2022-10-16 02:30:12,229 INFO L78 Accepts]: Start accepts. Automaton has 3449 states and 4495 transitions. Word has length 185 [2022-10-16 02:30:12,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:12,230 INFO L495 AbstractCegarLoop]: Abstraction has 3449 states and 4495 transitions. [2022-10-16 02:30:12,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 13 states have internal predecessors, (262), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2022-10-16 02:30:12,230 INFO L276 IsEmpty]: Start isEmpty. Operand 3449 states and 4495 transitions. [2022-10-16 02:30:12,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-10-16 02:30:12,238 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:12,239 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:12,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:12,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 02:30:12,452 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:12,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:12,453 INFO L85 PathProgramCache]: Analyzing trace with hash 167040650, now seen corresponding path program 1 times [2022-10-16 02:30:12,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:12,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100900948] [2022-10-16 02:30:12,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:12,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:30:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:30:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:30:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:30:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:30:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:30:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 02:30:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 02:30:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-16 02:30:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 02:30:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-10-16 02:30:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-16 02:30:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-10-16 02:30:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,284 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 23 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-10-16 02:30:13,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:13,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100900948] [2022-10-16 02:30:13,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100900948] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:13,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736828576] [2022-10-16 02:30:13,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:13,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:13,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:13,286 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:13,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 02:30:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:13,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:30:13,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:13,782 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 36 proven. 53 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 02:30:13,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:14,025 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-10-16 02:30:14,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736828576] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:14,025 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:14,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2022-10-16 02:30:14,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117040284] [2022-10-16 02:30:14,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:14,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 02:30:14,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:14,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 02:30:14,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-10-16 02:30:14,029 INFO L87 Difference]: Start difference. First operand 3449 states and 4495 transitions. Second operand has 16 states, 16 states have (on average 16.5) internal successors, (264), 14 states have internal predecessors, (264), 6 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (42), 8 states have call predecessors, (42), 6 states have call successors, (42) [2022-10-16 02:30:23,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:23,675 INFO L93 Difference]: Finished difference Result 14346 states and 19684 transitions. [2022-10-16 02:30:23,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-10-16 02:30:23,676 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.5) internal successors, (264), 14 states have internal predecessors, (264), 6 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (42), 8 states have call predecessors, (42), 6 states have call successors, (42) Word has length 193 [2022-10-16 02:30:23,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:23,730 INFO L225 Difference]: With dead ends: 14346 [2022-10-16 02:30:23,731 INFO L226 Difference]: Without dead ends: 14346 [2022-10-16 02:30:23,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 474 SyntacticMatches, 1 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5045 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1835, Invalid=12207, Unknown=0, NotChecked=0, Total=14042 [2022-10-16 02:30:23,736 INFO L413 NwaCegarLoop]: 1822 mSDtfsCounter, 5886 mSDsluCounter, 13749 mSDsCounter, 0 mSdLazyCounter, 5456 mSolverCounterSat, 3552 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5886 SdHoareTripleChecker+Valid, 15571 SdHoareTripleChecker+Invalid, 9008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3552 IncrementalHoareTripleChecker+Valid, 5456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:23,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5886 Valid, 15571 Invalid, 9008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3552 Valid, 5456 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-10-16 02:30:23,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14346 states. [2022-10-16 02:30:24,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14346 to 6315. [2022-10-16 02:30:24,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6315 states, 4771 states have (on average 1.3114651016558374) internal successors, (6257), 4809 states have internal predecessors, (6257), 992 states have call successors, (992), 551 states have call predecessors, (992), 551 states have return successors, (992), 954 states have call predecessors, (992), 992 states have call successors, (992) [2022-10-16 02:30:24,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6315 states to 6315 states and 8241 transitions. [2022-10-16 02:30:24,056 INFO L78 Accepts]: Start accepts. Automaton has 6315 states and 8241 transitions. Word has length 193 [2022-10-16 02:30:24,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:24,058 INFO L495 AbstractCegarLoop]: Abstraction has 6315 states and 8241 transitions. [2022-10-16 02:30:24,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.5) internal successors, (264), 14 states have internal predecessors, (264), 6 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (42), 8 states have call predecessors, (42), 6 states have call successors, (42) [2022-10-16 02:30:24,059 INFO L276 IsEmpty]: Start isEmpty. Operand 6315 states and 8241 transitions. [2022-10-16 02:30:24,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-10-16 02:30:24,076 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:24,077 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:24,119 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 02:30:24,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 02:30:24,292 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:24,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:24,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1057024661, now seen corresponding path program 1 times [2022-10-16 02:30:24,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:24,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606884187] [2022-10-16 02:30:24,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:24,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 02:30:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-16 02:30:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 02:30:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 02:30:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 02:30:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 02:30:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 02:30:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-10-16 02:30:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-10-16 02:30:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,665 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-10-16 02:30:24,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:24,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606884187] [2022-10-16 02:30:24,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606884187] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:24,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:24,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:30:24,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584675656] [2022-10-16 02:30:24,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:24,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:30:24,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:24,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:30:24,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:30:24,668 INFO L87 Difference]: Start difference. First operand 6315 states and 8241 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 02:30:25,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:25,059 INFO L93 Difference]: Finished difference Result 15366 states and 20713 transitions. [2022-10-16 02:30:25,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 02:30:25,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 195 [2022-10-16 02:30:25,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:25,123 INFO L225 Difference]: With dead ends: 15366 [2022-10-16 02:30:25,123 INFO L226 Difference]: Without dead ends: 15366 [2022-10-16 02:30:25,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-10-16 02:30:25,125 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 811 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 3082 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:25,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 3082 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:30:25,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15366 states. [2022-10-16 02:30:25,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15366 to 8157. [2022-10-16 02:30:25,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8157 states, 6101 states have (on average 1.3088018357646287) internal successors, (7985), 6152 states have internal predecessors, (7985), 1335 states have call successors, (1335), 720 states have call predecessors, (1335), 720 states have return successors, (1335), 1284 states have call predecessors, (1335), 1335 states have call successors, (1335) [2022-10-16 02:30:25,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8157 states to 8157 states and 10655 transitions. [2022-10-16 02:30:25,465 INFO L78 Accepts]: Start accepts. Automaton has 8157 states and 10655 transitions. Word has length 195 [2022-10-16 02:30:25,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:25,466 INFO L495 AbstractCegarLoop]: Abstraction has 8157 states and 10655 transitions. [2022-10-16 02:30:25,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 02:30:25,467 INFO L276 IsEmpty]: Start isEmpty. Operand 8157 states and 10655 transitions. [2022-10-16 02:30:25,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-10-16 02:30:25,484 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:25,485 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:25,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-10-16 02:30:25,485 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:25,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:25,486 INFO L85 PathProgramCache]: Analyzing trace with hash -97414032, now seen corresponding path program 1 times [2022-10-16 02:30:25,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:25,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782436356] [2022-10-16 02:30:25,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:25,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 02:30:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-16 02:30:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 02:30:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 02:30:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-16 02:30:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 02:30:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-16 02:30:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 02:30:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 02:30:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,128 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 02:30:26,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:26,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782436356] [2022-10-16 02:30:26,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782436356] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:26,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208108860] [2022-10-16 02:30:26,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:26,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:26,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:26,131 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:26,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 02:30:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:26,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 02:30:26,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:26,407 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 49 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-16 02:30:26,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:26,495 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-16 02:30:26,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208108860] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:26,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-16 02:30:26,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 7] total 14 [2022-10-16 02:30:26,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739959922] [2022-10-16 02:30:26,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:26,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:26,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:26,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:26,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-10-16 02:30:26,499 INFO L87 Difference]: Start difference. First operand 8157 states and 10655 transitions. Second operand has 5 states, 4 states have (on average 28.5) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-10-16 02:30:26,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:26,542 INFO L93 Difference]: Finished difference Result 5592 states and 7291 transitions. [2022-10-16 02:30:26,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:26,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 28.5) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 197 [2022-10-16 02:30:26,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:26,563 INFO L225 Difference]: With dead ends: 5592 [2022-10-16 02:30:26,563 INFO L226 Difference]: Without dead ends: 5486 [2022-10-16 02:30:26,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-10-16 02:30:26,564 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 2 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:26,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 867 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:26,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5486 states. [2022-10-16 02:30:26,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5486 to 5486. [2022-10-16 02:30:26,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5486 states, 4104 states have (on average 1.3082358674463939) internal successors, (5369), 4138 states have internal predecessors, (5369), 901 states have call successors, (901), 480 states have call predecessors, (901), 480 states have return successors, (901), 867 states have call predecessors, (901), 901 states have call successors, (901) [2022-10-16 02:30:26,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5486 states to 5486 states and 7171 transitions. [2022-10-16 02:30:26,741 INFO L78 Accepts]: Start accepts. Automaton has 5486 states and 7171 transitions. Word has length 197 [2022-10-16 02:30:26,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:26,742 INFO L495 AbstractCegarLoop]: Abstraction has 5486 states and 7171 transitions. [2022-10-16 02:30:26,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 28.5) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-10-16 02:30:26,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5486 states and 7171 transitions. [2022-10-16 02:30:26,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-10-16 02:30:26,756 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:26,759 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:26,798 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 02:30:26,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:26,974 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:26,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:26,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1807322117, now seen corresponding path program 1 times [2022-10-16 02:30:26,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:26,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222735683] [2022-10-16 02:30:26,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:26,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 02:30:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-16 02:30:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 02:30:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-16 02:30:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-16 02:30:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 02:30:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-16 02:30:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 02:30:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 02:30:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:27,804 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 02:30:27,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:27,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222735683] [2022-10-16 02:30:27,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222735683] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:27,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56633352] [2022-10-16 02:30:27,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:27,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:27,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:27,807 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:27,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 02:30:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:28,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 821 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:30:28,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:28,571 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 71 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 02:30:28,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:28,932 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 02:30:28,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56633352] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:28,932 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:28,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 24 [2022-10-16 02:30:28,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405292254] [2022-10-16 02:30:28,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:28,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 02:30:28,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:28,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 02:30:28,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-10-16 02:30:28,935 INFO L87 Difference]: Start difference. First operand 5486 states and 7171 transitions. Second operand has 24 states, 24 states have (on average 14.25) internal successors, (342), 24 states have internal predecessors, (342), 9 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (40), 9 states have call predecessors, (40), 9 states have call successors, (40) [2022-10-16 02:30:50,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:50,523 INFO L93 Difference]: Finished difference Result 23367 states and 33125 transitions. [2022-10-16 02:30:50,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2022-10-16 02:30:50,524 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 14.25) internal successors, (342), 24 states have internal predecessors, (342), 9 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (40), 9 states have call predecessors, (40), 9 states have call successors, (40) Word has length 197 [2022-10-16 02:30:50,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:50,608 INFO L225 Difference]: With dead ends: 23367 [2022-10-16 02:30:50,609 INFO L226 Difference]: Without dead ends: 23367 [2022-10-16 02:30:50,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 415 SyntacticMatches, 1 SemanticMatches, 250 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26384 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=6223, Invalid=57029, Unknown=0, NotChecked=0, Total=63252 [2022-10-16 02:30:50,628 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 10159 mSDsluCounter, 7913 mSDsCounter, 0 mSdLazyCounter, 13198 mSolverCounterSat, 4775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10159 SdHoareTripleChecker+Valid, 8613 SdHoareTripleChecker+Invalid, 17973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4775 IncrementalHoareTripleChecker+Valid, 13198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:50,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10159 Valid, 8613 Invalid, 17973 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4775 Valid, 13198 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2022-10-16 02:30:50,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23367 states. [2022-10-16 02:30:51,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23367 to 11873. [2022-10-16 02:30:51,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11873 states, 8944 states have (on average 1.3064624329159213) internal successors, (11685), 9014 states have internal predecessors, (11685), 1889 states have call successors, (1889), 1039 states have call predecessors, (1889), 1039 states have return successors, (1889), 1819 states have call predecessors, (1889), 1889 states have call successors, (1889) [2022-10-16 02:30:51,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11873 states to 11873 states and 15463 transitions. [2022-10-16 02:30:51,430 INFO L78 Accepts]: Start accepts. Automaton has 11873 states and 15463 transitions. Word has length 197 [2022-10-16 02:30:51,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:51,431 INFO L495 AbstractCegarLoop]: Abstraction has 11873 states and 15463 transitions. [2022-10-16 02:30:51,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 14.25) internal successors, (342), 24 states have internal predecessors, (342), 9 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (40), 9 states have call predecessors, (40), 9 states have call successors, (40) [2022-10-16 02:30:51,431 INFO L276 IsEmpty]: Start isEmpty. Operand 11873 states and 15463 transitions. [2022-10-16 02:30:51,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-10-16 02:30:51,457 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:51,457 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:51,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:51,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:51,672 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:51,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:51,676 INFO L85 PathProgramCache]: Analyzing trace with hash 2097729182, now seen corresponding path program 1 times [2022-10-16 02:30:51,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:51,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258577168] [2022-10-16 02:30:51,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:51,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 02:30:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-16 02:30:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 02:30:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-16 02:30:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-16 02:30:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 02:30:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-16 02:30:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 02:30:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 02:30:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:51,986 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-10-16 02:30:51,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:51,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258577168] [2022-10-16 02:30:51,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258577168] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:51,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:51,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:30:51,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959392557] [2022-10-16 02:30:51,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:51,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:51,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:51,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:51,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:51,989 INFO L87 Difference]: Start difference. First operand 11873 states and 15463 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 02:30:52,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:52,174 INFO L93 Difference]: Finished difference Result 11127 states and 14511 transitions. [2022-10-16 02:30:52,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:52,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 197 [2022-10-16 02:30:52,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:52,212 INFO L225 Difference]: With dead ends: 11127 [2022-10-16 02:30:52,212 INFO L226 Difference]: Without dead ends: 11127 [2022-10-16 02:30:52,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:52,213 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 284 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:52,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 475 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:52,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11127 states. [2022-10-16 02:30:52,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11127 to 11125. [2022-10-16 02:30:52,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11125 states, 8388 states have (on average 1.308416785884597) internal successors, (10975), 8454 states have internal predecessors, (10975), 1767 states have call successors, (1767), 969 states have call predecessors, (1767), 969 states have return successors, (1767), 1701 states have call predecessors, (1767), 1767 states have call successors, (1767) [2022-10-16 02:30:52,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11125 states to 11125 states and 14509 transitions. [2022-10-16 02:30:52,581 INFO L78 Accepts]: Start accepts. Automaton has 11125 states and 14509 transitions. Word has length 197 [2022-10-16 02:30:52,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:52,582 INFO L495 AbstractCegarLoop]: Abstraction has 11125 states and 14509 transitions. [2022-10-16 02:30:52,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 02:30:52,582 INFO L276 IsEmpty]: Start isEmpty. Operand 11125 states and 14509 transitions. [2022-10-16 02:30:52,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-10-16 02:30:52,606 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:52,606 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:52,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-10-16 02:30:52,607 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:52,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:52,607 INFO L85 PathProgramCache]: Analyzing trace with hash 624633324, now seen corresponding path program 1 times [2022-10-16 02:30:52,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:52,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772987574] [2022-10-16 02:30:52,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:52,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:30:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:30:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:30:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:30:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:30:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:30:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 02:30:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-16 02:30:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 02:30:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-16 02:30:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 02:30:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-16 02:30:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-10-16 02:30:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 02:30:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 02:30:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,387 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 29 proven. 19 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 02:30:53,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:53,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772987574] [2022-10-16 02:30:53,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772987574] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:53,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311225891] [2022-10-16 02:30:53,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:53,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:53,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:53,389 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:53,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 02:30:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:53,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 02:30:53,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:53,719 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 66 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-10-16 02:30:53,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:53,834 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-10-16 02:30:53,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311225891] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:53,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:53,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-10-16 02:30:53,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509081416] [2022-10-16 02:30:53,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:53,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 02:30:53,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:53,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 02:30:53,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-10-16 02:30:53,837 INFO L87 Difference]: Start difference. First operand 11125 states and 14509 transitions. Second operand has 17 states, 17 states have (on average 15.117647058823529) internal successors, (257), 16 states have internal predecessors, (257), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2022-10-16 02:31:00,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:00,541 INFO L93 Difference]: Finished difference Result 23563 states and 33370 transitions. [2022-10-16 02:31:00,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-10-16 02:31:00,548 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 15.117647058823529) internal successors, (257), 16 states have internal predecessors, (257), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) Word has length 198 [2022-10-16 02:31:00,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:00,625 INFO L225 Difference]: With dead ends: 23563 [2022-10-16 02:31:00,625 INFO L226 Difference]: Without dead ends: 23563 [2022-10-16 02:31:00,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2051 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=886, Invalid=5594, Unknown=0, NotChecked=0, Total=6480 [2022-10-16 02:31:00,627 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 3013 mSDsluCounter, 6808 mSDsCounter, 0 mSdLazyCounter, 5758 mSolverCounterSat, 1476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3013 SdHoareTripleChecker+Valid, 7448 SdHoareTripleChecker+Invalid, 7234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1476 IncrementalHoareTripleChecker+Valid, 5758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:00,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3013 Valid, 7448 Invalid, 7234 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1476 Valid, 5758 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-10-16 02:31:00,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23563 states. [2022-10-16 02:31:01,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23563 to 12473. [2022-10-16 02:31:01,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12473 states, 9416 states have (on average 1.304269328802039) internal successors, (12281), 9490 states have internal predecessors, (12281), 1967 states have call successors, (1967), 1089 states have call predecessors, (1967), 1089 states have return successors, (1967), 1893 states have call predecessors, (1967), 1967 states have call successors, (1967) [2022-10-16 02:31:01,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12473 states to 12473 states and 16215 transitions. [2022-10-16 02:31:01,199 INFO L78 Accepts]: Start accepts. Automaton has 12473 states and 16215 transitions. Word has length 198 [2022-10-16 02:31:01,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:01,200 INFO L495 AbstractCegarLoop]: Abstraction has 12473 states and 16215 transitions. [2022-10-16 02:31:01,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 15.117647058823529) internal successors, (257), 16 states have internal predecessors, (257), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2022-10-16 02:31:01,200 INFO L276 IsEmpty]: Start isEmpty. Operand 12473 states and 16215 transitions. [2022-10-16 02:31:01,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-10-16 02:31:01,227 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:01,228 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:01,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:01,441 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,SelfDestructingSolverStorable33 [2022-10-16 02:31:01,441 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:01,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:01,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1149020538, now seen corresponding path program 1 times [2022-10-16 02:31:01,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:01,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002890200] [2022-10-16 02:31:01,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:01,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 02:31:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-16 02:31:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 02:31:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 02:31:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-16 02:31:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-10-16 02:31:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-10-16 02:31:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 02:31:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 02:31:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:31:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:01,591 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-10-16 02:31:01,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:01,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002890200] [2022-10-16 02:31:01,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002890200] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:31:01,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:31:01,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:31:01,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921093656] [2022-10-16 02:31:01,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:31:01,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:31:01,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:01,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:31:01,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:31:01,595 INFO L87 Difference]: Start difference. First operand 12473 states and 16215 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 02:31:01,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:01,756 INFO L93 Difference]: Finished difference Result 11817 states and 15352 transitions. [2022-10-16 02:31:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:31:01,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 206 [2022-10-16 02:31:01,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:01,798 INFO L225 Difference]: With dead ends: 11817 [2022-10-16 02:31:01,798 INFO L226 Difference]: Without dead ends: 11817 [2022-10-16 02:31:01,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:31:01,800 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 234 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:01,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 454 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:31:01,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11817 states. [2022-10-16 02:31:02,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11817 to 11785. [2022-10-16 02:31:02,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11785 states, 8920 states have (on average 1.303811659192825) internal successors, (11630), 8990 states have internal predecessors, (11630), 1845 states have call successors, (1845), 1019 states have call predecessors, (1845), 1019 states have return successors, (1845), 1775 states have call predecessors, (1845), 1845 states have call successors, (1845) [2022-10-16 02:31:02,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11785 states to 11785 states and 15320 transitions. [2022-10-16 02:31:02,185 INFO L78 Accepts]: Start accepts. Automaton has 11785 states and 15320 transitions. Word has length 206 [2022-10-16 02:31:02,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:02,186 INFO L495 AbstractCegarLoop]: Abstraction has 11785 states and 15320 transitions. [2022-10-16 02:31:02,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 02:31:02,186 INFO L276 IsEmpty]: Start isEmpty. Operand 11785 states and 15320 transitions. [2022-10-16 02:31:02,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-10-16 02:31:02,212 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:02,213 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-10-16 02:31:02,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-10-16 02:31:02,214 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:02,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:02,215 INFO L85 PathProgramCache]: Analyzing trace with hash -447425911, now seen corresponding path program 1 times [2022-10-16 02:31:02,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:02,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515206409] [2022-10-16 02:31:02,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:02,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:31:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:31:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:31:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:31:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-16 02:31:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-10-16 02:31:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-16 02:31:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-10-16 02:31:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-16 02:31:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-10-16 02:31:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-10-16 02:31:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 14 proven. 46 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-10-16 02:31:02,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:02,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515206409] [2022-10-16 02:31:02,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515206409] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:02,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867327243] [2022-10-16 02:31:02,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:02,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:02,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:02,532 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:02,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 02:31:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:02,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 02:31:02,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 8 proven. 115 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 02:31:02,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:03,211 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 14 proven. 46 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-10-16 02:31:03,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867327243] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:03,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:03,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 10 [2022-10-16 02:31:03,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985423883] [2022-10-16 02:31:03,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:03,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:31:03,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:03,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:31:03,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:31:03,215 INFO L87 Difference]: Start difference. First operand 11785 states and 15320 transitions. Second operand has 10 states, 10 states have (on average 18.7) internal successors, (187), 9 states have internal predecessors, (187), 4 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-10-16 02:31:03,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:03,577 INFO L93 Difference]: Finished difference Result 25380 states and 32989 transitions. [2022-10-16 02:31:03,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 02:31:03,578 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.7) internal successors, (187), 9 states have internal predecessors, (187), 4 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 207 [2022-10-16 02:31:03,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:03,645 INFO L225 Difference]: With dead ends: 25380 [2022-10-16 02:31:03,645 INFO L226 Difference]: Without dead ends: 25380 [2022-10-16 02:31:03,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 441 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-10-16 02:31:03,646 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 779 mSDsluCounter, 2560 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 2962 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:03,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 2962 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:31:03,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25380 states. [2022-10-16 02:31:04,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25380 to 18325. [2022-10-16 02:31:04,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18325 states, 13994 states have (on average 1.2876947263112763) internal successors, (18020), 14123 states have internal predecessors, (18020), 2752 states have call successors, (2752), 1578 states have call predecessors, (2752), 1578 states have return successors, (2752), 2623 states have call predecessors, (2752), 2752 states have call successors, (2752) [2022-10-16 02:31:04,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18325 states to 18325 states and 23524 transitions. [2022-10-16 02:31:04,224 INFO L78 Accepts]: Start accepts. Automaton has 18325 states and 23524 transitions. Word has length 207 [2022-10-16 02:31:04,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:04,225 INFO L495 AbstractCegarLoop]: Abstraction has 18325 states and 23524 transitions. [2022-10-16 02:31:04,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.7) internal successors, (187), 9 states have internal predecessors, (187), 4 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-10-16 02:31:04,225 INFO L276 IsEmpty]: Start isEmpty. Operand 18325 states and 23524 transitions. [2022-10-16 02:31:04,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-10-16 02:31:04,247 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:04,248 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:04,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:04,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:04,461 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:04,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:04,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1759361223, now seen corresponding path program 1 times [2022-10-16 02:31:04,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:04,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133982154] [2022-10-16 02:31:04,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:04,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:04,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:04,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:04,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:04,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:04,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:04,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:04,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 02:31:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:04,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-16 02:31:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:04,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 02:31:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:05,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 02:31:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:05,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-16 02:31:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:05,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 02:31:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:05,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-16 02:31:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:05,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-16 02:31:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:05,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-16 02:31:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:05,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 02:31:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:05,028 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 29 proven. 6 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-10-16 02:31:05,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:05,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133982154] [2022-10-16 02:31:05,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133982154] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:05,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707407999] [2022-10-16 02:31:05,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:05,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:05,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:05,031 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:05,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 02:31:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:05,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 02:31:05,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:05,471 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 67 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-10-16 02:31:05,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 29 proven. 6 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-10-16 02:31:05,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707407999] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:05,671 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:05,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2022-10-16 02:31:05,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609888217] [2022-10-16 02:31:05,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:05,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 02:31:05,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:05,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 02:31:05,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:31:05,676 INFO L87 Difference]: Start difference. First operand 18325 states and 23524 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 8 states have internal predecessors, (182), 3 states have call successors, (30), 4 states have call predecessors, (30), 7 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-10-16 02:31:05,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:05,959 INFO L93 Difference]: Finished difference Result 24756 states and 33584 transitions. [2022-10-16 02:31:05,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 02:31:05,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 8 states have internal predecessors, (182), 3 states have call successors, (30), 4 states have call predecessors, (30), 7 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 207 [2022-10-16 02:31:05,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:06,028 INFO L225 Difference]: With dead ends: 24756 [2022-10-16 02:31:06,028 INFO L226 Difference]: Without dead ends: 24756 [2022-10-16 02:31:06,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 443 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 02:31:06,029 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 281 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:06,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 2798 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:31:06,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24756 states. [2022-10-16 02:31:06,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24756 to 18325. [2022-10-16 02:31:06,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18325 states, 13994 states have (on average 1.287337430327283) internal successors, (18015), 14123 states have internal predecessors, (18015), 2752 states have call successors, (2752), 1578 states have call predecessors, (2752), 1578 states have return successors, (2752), 2623 states have call predecessors, (2752), 2752 states have call successors, (2752) [2022-10-16 02:31:06,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18325 states to 18325 states and 23519 transitions. [2022-10-16 02:31:06,748 INFO L78 Accepts]: Start accepts. Automaton has 18325 states and 23519 transitions. Word has length 207 [2022-10-16 02:31:06,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:06,748 INFO L495 AbstractCegarLoop]: Abstraction has 18325 states and 23519 transitions. [2022-10-16 02:31:06,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 8 states have internal predecessors, (182), 3 states have call successors, (30), 4 states have call predecessors, (30), 7 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-10-16 02:31:06,749 INFO L276 IsEmpty]: Start isEmpty. Operand 18325 states and 23519 transitions. [2022-10-16 02:31:06,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-10-16 02:31:06,763 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:06,763 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:06,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:06,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:06,977 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:06,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:06,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1739190191, now seen corresponding path program 1 times [2022-10-16 02:31:06,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:06,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79868916] [2022-10-16 02:31:06,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:06,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:31:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:31:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 02:31:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-16 02:31:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 02:31:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 02:31:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 02:31:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-10-16 02:31:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:07,825 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-16 02:31:07,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:07,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79868916] [2022-10-16 02:31:07,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79868916] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:07,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435477027] [2022-10-16 02:31:07,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:07,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:07,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:07,827 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:07,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 02:31:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:08,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 02:31:08,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 02:31:09,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:10,149 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-16 02:31:10,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435477027] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:10,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:10,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 10] total 22 [2022-10-16 02:31:10,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997708556] [2022-10-16 02:31:10,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:10,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 02:31:10,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:10,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 02:31:10,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2022-10-16 02:31:10,153 INFO L87 Difference]: Start difference. First operand 18325 states and 23519 transitions. Second operand has 22 states, 22 states have (on average 16.818181818181817) internal successors, (370), 22 states have internal predecessors, (370), 10 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) [2022-10-16 02:31:14,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:14,608 INFO L93 Difference]: Finished difference Result 29125 states and 39334 transitions. [2022-10-16 02:31:14,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 02:31:14,609 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 16.818181818181817) internal successors, (370), 22 states have internal predecessors, (370), 10 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) Word has length 214 [2022-10-16 02:31:14,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:14,688 INFO L225 Difference]: With dead ends: 29125 [2022-10-16 02:31:14,688 INFO L226 Difference]: Without dead ends: 29125 [2022-10-16 02:31:14,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 450 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=643, Invalid=1907, Unknown=0, NotChecked=0, Total=2550 [2022-10-16 02:31:14,692 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 4749 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 3106 mSolverCounterSat, 1884 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4750 SdHoareTripleChecker+Valid, 3462 SdHoareTripleChecker+Invalid, 4990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1884 IncrementalHoareTripleChecker+Valid, 3106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:14,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4750 Valid, 3462 Invalid, 4990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1884 Valid, 3106 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-10-16 02:31:14,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29125 states. [2022-10-16 02:31:15,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29125 to 14875. [2022-10-16 02:31:15,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14875 states, 11277 states have (on average 1.2813691584641305) internal successors, (14450), 11385 states have internal predecessors, (14450), 2308 states have call successors, (2308), 1289 states have call predecessors, (2308), 1289 states have return successors, (2308), 2200 states have call predecessors, (2308), 2308 states have call successors, (2308) [2022-10-16 02:31:15,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14875 states to 14875 states and 19066 transitions. [2022-10-16 02:31:15,264 INFO L78 Accepts]: Start accepts. Automaton has 14875 states and 19066 transitions. Word has length 214 [2022-10-16 02:31:15,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:15,265 INFO L495 AbstractCegarLoop]: Abstraction has 14875 states and 19066 transitions. [2022-10-16 02:31:15,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 16.818181818181817) internal successors, (370), 22 states have internal predecessors, (370), 10 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) [2022-10-16 02:31:15,265 INFO L276 IsEmpty]: Start isEmpty. Operand 14875 states and 19066 transitions. [2022-10-16 02:31:15,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-10-16 02:31:15,278 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:15,279 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:15,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:15,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-10-16 02:31:15,493 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:15,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:15,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1044913888, now seen corresponding path program 1 times [2022-10-16 02:31:15,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:15,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043644731] [2022-10-16 02:31:15,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:15,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:31:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:31:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 02:31:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 02:31:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-16 02:31:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-16 02:31:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 02:31:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-10-16 02:31:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,112 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-16 02:31:16,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:16,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043644731] [2022-10-16 02:31:16,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043644731] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:16,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463449295] [2022-10-16 02:31:16,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:16,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:16,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:16,114 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:16,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 02:31:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:16,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 02:31:16,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:16,463 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 80 proven. 16 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 02:31:16,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:16,792 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-16 02:31:16,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463449295] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:16,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:16,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 14 [2022-10-16 02:31:16,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765381691] [2022-10-16 02:31:16,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:16,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 02:31:16,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:16,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 02:31:16,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-10-16 02:31:16,795 INFO L87 Difference]: Start difference. First operand 14875 states and 19066 transitions. Second operand has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 6 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) [2022-10-16 02:31:19,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:19,790 INFO L93 Difference]: Finished difference Result 33867 states and 46389 transitions. [2022-10-16 02:31:19,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-10-16 02:31:19,790 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 6 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) Word has length 215 [2022-10-16 02:31:19,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:19,875 INFO L225 Difference]: With dead ends: 33867 [2022-10-16 02:31:19,875 INFO L226 Difference]: Without dead ends: 33867 [2022-10-16 02:31:19,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2124 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=952, Invalid=5054, Unknown=0, NotChecked=0, Total=6006 [2022-10-16 02:31:19,877 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 1944 mSDsluCounter, 9293 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 10272 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 568 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:19,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2044 Valid, 10272 Invalid, 2611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [568 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 02:31:19,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33867 states. [2022-10-16 02:31:20,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33867 to 19644. [2022-10-16 02:31:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19644 states, 15082 states have (on average 1.2717146267073332) internal successors, (19180), 15215 states have internal predecessors, (19180), 2885 states have call successors, (2885), 1676 states have call predecessors, (2885), 1676 states have return successors, (2885), 2752 states have call predecessors, (2885), 2885 states have call successors, (2885) [2022-10-16 02:31:20,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19644 states to 19644 states and 24950 transitions. [2022-10-16 02:31:20,683 INFO L78 Accepts]: Start accepts. Automaton has 19644 states and 24950 transitions. Word has length 215 [2022-10-16 02:31:20,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:20,684 INFO L495 AbstractCegarLoop]: Abstraction has 19644 states and 24950 transitions. [2022-10-16 02:31:20,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 6 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) [2022-10-16 02:31:20,684 INFO L276 IsEmpty]: Start isEmpty. Operand 19644 states and 24950 transitions. [2022-10-16 02:31:20,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-10-16 02:31:20,698 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:20,699 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:20,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:20,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-10-16 02:31:20,914 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:20,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:20,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1693506658, now seen corresponding path program 1 times [2022-10-16 02:31:20,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:20,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227342025] [2022-10-16 02:31:20,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:20,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:31:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:31:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 02:31:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 02:31:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-16 02:31:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-16 02:31:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 02:31:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-10-16 02:31:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,063 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-10-16 02:31:21,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:21,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227342025] [2022-10-16 02:31:21,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227342025] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:31:21,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:31:21,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:31:21,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893263430] [2022-10-16 02:31:21,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:31:21,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:31:21,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:21,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:31:21,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:31:21,065 INFO L87 Difference]: Start difference. First operand 19644 states and 24950 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 02:31:21,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:21,225 INFO L93 Difference]: Finished difference Result 14409 states and 18311 transitions. [2022-10-16 02:31:21,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:31:21,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 215 [2022-10-16 02:31:21,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:21,257 INFO L225 Difference]: With dead ends: 14409 [2022-10-16 02:31:21,258 INFO L226 Difference]: Without dead ends: 14409 [2022-10-16 02:31:21,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:31:21,259 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 238 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:21,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 486 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:31:21,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14409 states. [2022-10-16 02:31:21,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14409 to 14366. [2022-10-16 02:31:21,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14366 states, 11123 states have (on average 1.2738469837274116) internal successors, (14169), 11211 states have internal predecessors, (14169), 2049 states have call successors, (2049), 1193 states have call predecessors, (2049), 1193 states have return successors, (2049), 1961 states have call predecessors, (2049), 2049 states have call successors, (2049) [2022-10-16 02:31:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14366 states to 14366 states and 18267 transitions. [2022-10-16 02:31:21,560 INFO L78 Accepts]: Start accepts. Automaton has 14366 states and 18267 transitions. Word has length 215 [2022-10-16 02:31:21,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:21,560 INFO L495 AbstractCegarLoop]: Abstraction has 14366 states and 18267 transitions. [2022-10-16 02:31:21,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 02:31:21,561 INFO L276 IsEmpty]: Start isEmpty. Operand 14366 states and 18267 transitions. [2022-10-16 02:31:21,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-10-16 02:31:21,568 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:21,569 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-10-16 02:31:21,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-10-16 02:31:21,569 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:21,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:21,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1360611087, now seen corresponding path program 1 times [2022-10-16 02:31:21,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:21,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113417819] [2022-10-16 02:31:21,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:21,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:31:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:31:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:31:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:31:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:31:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:31:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 02:31:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-16 02:31:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 02:31:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-16 02:31:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 02:31:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-16 02:31:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-10-16 02:31:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-16 02:31:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 02:31:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 02:31:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:21,930 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-10-16 02:31:21,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:21,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113417819] [2022-10-16 02:31:21,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113417819] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:31:21,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:31:21,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:31:21,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479434486] [2022-10-16 02:31:21,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:31:21,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:31:21,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:21,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:31:21,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:31:21,933 INFO L87 Difference]: Start difference. First operand 14366 states and 18267 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 6 states have internal predecessors, (114), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-16 02:31:22,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:22,330 INFO L93 Difference]: Finished difference Result 27051 states and 35196 transitions. [2022-10-16 02:31:22,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 02:31:22,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 6 states have internal predecessors, (114), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 216 [2022-10-16 02:31:22,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:22,398 INFO L225 Difference]: With dead ends: 27051 [2022-10-16 02:31:22,398 INFO L226 Difference]: Without dead ends: 27051 [2022-10-16 02:31:22,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-10-16 02:31:22,399 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 611 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 2999 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:22,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 2999 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:31:22,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27051 states. [2022-10-16 02:31:22,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27051 to 17739. [2022-10-16 02:31:22,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17739 states, 13570 states have (on average 1.2665438467207075) internal successors, (17187), 13692 states have internal predecessors, (17187), 2637 states have call successors, (2637), 1531 states have call predecessors, (2637), 1531 states have return successors, (2637), 2515 states have call predecessors, (2637), 2637 states have call successors, (2637) [2022-10-16 02:31:22,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17739 states to 17739 states and 22461 transitions. [2022-10-16 02:31:22,897 INFO L78 Accepts]: Start accepts. Automaton has 17739 states and 22461 transitions. Word has length 216 [2022-10-16 02:31:22,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:22,897 INFO L495 AbstractCegarLoop]: Abstraction has 17739 states and 22461 transitions. [2022-10-16 02:31:22,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 6 states have internal predecessors, (114), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-16 02:31:22,898 INFO L276 IsEmpty]: Start isEmpty. Operand 17739 states and 22461 transitions. [2022-10-16 02:31:22,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-10-16 02:31:22,908 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:22,908 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-10-16 02:31:22,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-10-16 02:31:22,909 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:22,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:22,909 INFO L85 PathProgramCache]: Analyzing trace with hash -602706836, now seen corresponding path program 1 times [2022-10-16 02:31:22,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:22,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716130140] [2022-10-16 02:31:22,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:22,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:31:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:31:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:31:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:31:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:31:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:31:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 02:31:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-16 02:31:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 02:31:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-16 02:31:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 02:31:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-16 02:31:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-10-16 02:31:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-10-16 02:31:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:31:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-10-16 02:31:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,588 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 41 proven. 10 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-10-16 02:31:23,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:23,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716130140] [2022-10-16 02:31:23,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716130140] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:23,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50179392] [2022-10-16 02:31:23,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:23,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:23,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:23,593 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:23,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 02:31:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:23,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 02:31:23,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:24,011 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-10-16 02:31:24,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:31:24,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50179392] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:31:24,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:31:24,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-10-16 02:31:24,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784064090] [2022-10-16 02:31:24,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:31:24,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:31:24,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:24,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:31:24,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-10-16 02:31:24,014 INFO L87 Difference]: Start difference. First operand 17739 states and 22461 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 6 states have internal predecessors, (151), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-10-16 02:31:24,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:24,480 INFO L93 Difference]: Finished difference Result 21711 states and 28500 transitions. [2022-10-16 02:31:24,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 02:31:24,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 6 states have internal predecessors, (151), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 217 [2022-10-16 02:31:24,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:24,519 INFO L225 Difference]: With dead ends: 21711 [2022-10-16 02:31:24,519 INFO L226 Difference]: Without dead ends: 21711 [2022-10-16 02:31:24,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-10-16 02:31:24,520 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 671 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 2211 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:24,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 2211 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:31:24,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21711 states. [2022-10-16 02:31:24,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21711 to 17739. [2022-10-16 02:31:24,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17739 states, 13570 states have (on average 1.2602063375092114) internal successors, (17101), 13692 states have internal predecessors, (17101), 2637 states have call successors, (2637), 1531 states have call predecessors, (2637), 1531 states have return successors, (2637), 2515 states have call predecessors, (2637), 2637 states have call successors, (2637) [2022-10-16 02:31:24,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17739 states to 17739 states and 22375 transitions. [2022-10-16 02:31:24,850 INFO L78 Accepts]: Start accepts. Automaton has 17739 states and 22375 transitions. Word has length 217 [2022-10-16 02:31:24,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:24,850 INFO L495 AbstractCegarLoop]: Abstraction has 17739 states and 22375 transitions. [2022-10-16 02:31:24,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 6 states have internal predecessors, (151), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-10-16 02:31:24,851 INFO L276 IsEmpty]: Start isEmpty. Operand 17739 states and 22375 transitions. [2022-10-16 02:31:24,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-10-16 02:31:24,864 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:24,864 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:24,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:25,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2022-10-16 02:31:25,080 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:25,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:25,081 INFO L85 PathProgramCache]: Analyzing trace with hash -975633784, now seen corresponding path program 1 times [2022-10-16 02:31:25,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:25,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806161745] [2022-10-16 02:31:25,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:25,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:31:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:31:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 02:31:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 02:31:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-16 02:31:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-16 02:31:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 02:31:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-10-16 02:31:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 02:31:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,676 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 25 proven. 26 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-10-16 02:31:25,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:25,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806161745] [2022-10-16 02:31:25,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806161745] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:25,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438031169] [2022-10-16 02:31:25,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:25,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:25,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:25,678 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:25,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 02:31:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:25,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:31:25,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 66 proven. 60 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 02:31:26,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:26,505 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 25 proven. 26 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-10-16 02:31:26,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438031169] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:26,506 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:26,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 12 [2022-10-16 02:31:26,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505136300] [2022-10-16 02:31:26,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:26,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 02:31:26,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:26,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 02:31:26,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-10-16 02:31:26,509 INFO L87 Difference]: Start difference. First operand 17739 states and 22375 transitions. Second operand has 12 states, 12 states have (on average 19.25) internal successors, (231), 11 states have internal predecessors, (231), 5 states have call successors, (37), 4 states have call predecessors, (37), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2022-10-16 02:31:27,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:27,818 INFO L93 Difference]: Finished difference Result 20736 states and 26220 transitions. [2022-10-16 02:31:27,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 02:31:27,818 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.25) internal successors, (231), 11 states have internal predecessors, (231), 5 states have call successors, (37), 4 states have call predecessors, (37), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) Word has length 223 [2022-10-16 02:31:27,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:27,850 INFO L225 Difference]: With dead ends: 20736 [2022-10-16 02:31:27,851 INFO L226 Difference]: Without dead ends: 20736 [2022-10-16 02:31:27,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 479 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2022-10-16 02:31:27,852 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 1333 mSDsluCounter, 4969 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 5812 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:27,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 5812 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 02:31:27,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20736 states. [2022-10-16 02:31:28,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20736 to 17739. [2022-10-16 02:31:28,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17739 states, 13570 states have (on average 1.2562269712601326) internal successors, (17047), 13692 states have internal predecessors, (17047), 2637 states have call successors, (2637), 1531 states have call predecessors, (2637), 1531 states have return successors, (2637), 2515 states have call predecessors, (2637), 2637 states have call successors, (2637) [2022-10-16 02:31:28,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17739 states to 17739 states and 22321 transitions. [2022-10-16 02:31:28,132 INFO L78 Accepts]: Start accepts. Automaton has 17739 states and 22321 transitions. Word has length 223 [2022-10-16 02:31:28,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:28,134 INFO L495 AbstractCegarLoop]: Abstraction has 17739 states and 22321 transitions. [2022-10-16 02:31:28,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.25) internal successors, (231), 11 states have internal predecessors, (231), 5 states have call successors, (37), 4 states have call predecessors, (37), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2022-10-16 02:31:28,134 INFO L276 IsEmpty]: Start isEmpty. Operand 17739 states and 22321 transitions. [2022-10-16 02:31:28,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-10-16 02:31:28,144 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:28,145 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:28,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:28,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-10-16 02:31:28,359 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:28,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:28,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1548310217, now seen corresponding path program 1 times [2022-10-16 02:31:28,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:28,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832958713] [2022-10-16 02:31:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:28,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:31:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:31:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 02:31:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 02:31:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-16 02:31:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-16 02:31:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 02:31:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-10-16 02:31:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 02:31:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:28,912 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-10-16 02:31:28,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:28,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832958713] [2022-10-16 02:31:28,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832958713] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:31:28,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:31:28,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:31:28,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645178884] [2022-10-16 02:31:28,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:31:28,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:31:28,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:28,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:31:28,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:31:28,914 INFO L87 Difference]: Start difference. First operand 17739 states and 22321 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 02:31:29,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:29,449 INFO L93 Difference]: Finished difference Result 21888 states and 28334 transitions. [2022-10-16 02:31:29,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 02:31:29,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 223 [2022-10-16 02:31:29,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:29,483 INFO L225 Difference]: With dead ends: 21888 [2022-10-16 02:31:29,483 INFO L226 Difference]: Without dead ends: 21888 [2022-10-16 02:31:29,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 02:31:29,484 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 698 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:29,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 2592 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:31:29,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21888 states. [2022-10-16 02:31:29,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21888 to 17730. [2022-10-16 02:31:29,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17730 states, 13561 states have (on average 1.2550696851264656) internal successors, (17020), 13683 states have internal predecessors, (17020), 2637 states have call successors, (2637), 1531 states have call predecessors, (2637), 1531 states have return successors, (2637), 2515 states have call predecessors, (2637), 2637 states have call successors, (2637) [2022-10-16 02:31:29,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17730 states to 17730 states and 22294 transitions. [2022-10-16 02:31:29,853 INFO L78 Accepts]: Start accepts. Automaton has 17730 states and 22294 transitions. Word has length 223 [2022-10-16 02:31:29,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:29,854 INFO L495 AbstractCegarLoop]: Abstraction has 17730 states and 22294 transitions. [2022-10-16 02:31:29,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 02:31:29,860 INFO L276 IsEmpty]: Start isEmpty. Operand 17730 states and 22294 transitions. [2022-10-16 02:31:29,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-10-16 02:31:29,870 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:29,871 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:29,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-10-16 02:31:29,871 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:29,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:29,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1158673675, now seen corresponding path program 1 times [2022-10-16 02:31:29,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:29,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648328703] [2022-10-16 02:31:29,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:29,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:31:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:31:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 02:31:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-10-16 02:31:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-10-16 02:31:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-16 02:31:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 02:31:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 02:31:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 02:31:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,319 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 30 proven. 19 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-10-16 02:31:30,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:30,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648328703] [2022-10-16 02:31:30,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648328703] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:30,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250793875] [2022-10-16 02:31:30,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:30,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:30,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:30,321 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:30,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 02:31:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:30,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:31:30,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:30,967 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 110 proven. 4 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-10-16 02:31:30,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:31,247 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 30 proven. 19 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-10-16 02:31:31,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250793875] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:31,248 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:31,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 19 [2022-10-16 02:31:31,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524387158] [2022-10-16 02:31:31,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:31,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 02:31:31,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:31,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 02:31:31,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2022-10-16 02:31:31,251 INFO L87 Difference]: Start difference. First operand 17730 states and 22294 transitions. Second operand has 19 states, 19 states have (on average 16.05263157894737) internal successors, (305), 19 states have internal predecessors, (305), 8 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) [2022-10-16 02:31:36,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:36,430 INFO L93 Difference]: Finished difference Result 38460 states and 52782 transitions. [2022-10-16 02:31:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-10-16 02:31:36,430 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 16.05263157894737) internal successors, (305), 19 states have internal predecessors, (305), 8 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) Word has length 224 [2022-10-16 02:31:36,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:36,495 INFO L225 Difference]: With dead ends: 38460 [2022-10-16 02:31:36,496 INFO L226 Difference]: Without dead ends: 38460 [2022-10-16 02:31:36,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 473 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=427, Invalid=1829, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 02:31:36,496 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 3527 mSDsluCounter, 4700 mSDsCounter, 0 mSdLazyCounter, 5748 mSolverCounterSat, 842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3553 SdHoareTripleChecker+Valid, 5395 SdHoareTripleChecker+Invalid, 6590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 842 IncrementalHoareTripleChecker+Valid, 5748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:36,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3553 Valid, 5395 Invalid, 6590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [842 Valid, 5748 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-10-16 02:31:36,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38460 states. [2022-10-16 02:31:36,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38460 to 21546. [2022-10-16 02:31:36,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21546 states, 16392 states have (on average 1.25628355295266) internal successors, (20593), 16543 states have internal predecessors, (20593), 3264 states have call successors, (3264), 1889 states have call predecessors, (3264), 1889 states have return successors, (3264), 3113 states have call predecessors, (3264), 3264 states have call successors, (3264) [2022-10-16 02:31:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21546 states to 21546 states and 27121 transitions. [2022-10-16 02:31:37,033 INFO L78 Accepts]: Start accepts. Automaton has 21546 states and 27121 transitions. Word has length 224 [2022-10-16 02:31:37,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:37,033 INFO L495 AbstractCegarLoop]: Abstraction has 21546 states and 27121 transitions. [2022-10-16 02:31:37,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 16.05263157894737) internal successors, (305), 19 states have internal predecessors, (305), 8 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) [2022-10-16 02:31:37,034 INFO L276 IsEmpty]: Start isEmpty. Operand 21546 states and 27121 transitions. [2022-10-16 02:31:37,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-10-16 02:31:37,040 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:37,040 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:37,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-10-16 02:31:37,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-10-16 02:31:37,241 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:37,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:37,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1000617244, now seen corresponding path program 1 times [2022-10-16 02:31:37,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:37,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955658825] [2022-10-16 02:31:37,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:37,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:31:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:31:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:31:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:31:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:31:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:31:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 02:31:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-16 02:31:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-16 02:31:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-16 02:31:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-16 02:31:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-16 02:31:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-10-16 02:31:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-10-16 02:31:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:31:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-10-16 02:31:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-10-16 02:31:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 21 proven. 30 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-10-16 02:31:37,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:37,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955658825] [2022-10-16 02:31:37,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955658825] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:37,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145062903] [2022-10-16 02:31:37,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:37,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:37,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:37,680 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:37,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 02:31:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 02:31:37,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:38,119 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 109 proven. 4 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-10-16 02:31:38,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:38,281 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 40 proven. 4 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-10-16 02:31:38,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145062903] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:38,282 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:38,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2022-10-16 02:31:38,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091843923] [2022-10-16 02:31:38,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:38,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 02:31:38,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:38,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 02:31:38,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-10-16 02:31:38,284 INFO L87 Difference]: Start difference. First operand 21546 states and 27121 transitions. Second operand has 14 states, 14 states have (on average 20.142857142857142) internal successors, (282), 13 states have internal predecessors, (282), 6 states have call successors, (45), 4 states have call predecessors, (45), 6 states have return successors, (45), 7 states have call predecessors, (45), 6 states have call successors, (45) [2022-10-16 02:31:42,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:42,298 INFO L93 Difference]: Finished difference Result 37408 states and 50736 transitions. [2022-10-16 02:31:42,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-10-16 02:31:42,298 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.142857142857142) internal successors, (282), 13 states have internal predecessors, (282), 6 states have call successors, (45), 4 states have call predecessors, (45), 6 states have return successors, (45), 7 states have call predecessors, (45), 6 states have call successors, (45) Word has length 225 [2022-10-16 02:31:42,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:42,367 INFO L225 Difference]: With dead ends: 37408 [2022-10-16 02:31:42,367 INFO L226 Difference]: Without dead ends: 37408 [2022-10-16 02:31:42,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 492 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1280 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=749, Invalid=3411, Unknown=0, NotChecked=0, Total=4160 [2022-10-16 02:31:42,369 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 2595 mSDsluCounter, 5378 mSDsCounter, 0 mSdLazyCounter, 3027 mSolverCounterSat, 1356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2595 SdHoareTripleChecker+Valid, 6138 SdHoareTripleChecker+Invalid, 4383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1356 IncrementalHoareTripleChecker+Valid, 3027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:42,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2595 Valid, 6138 Invalid, 4383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1356 Valid, 3027 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-16 02:31:42,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37408 states. [2022-10-16 02:31:42,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37408 to 22001. [2022-10-16 02:31:42,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22001 states, 16791 states have (on average 1.2547793460782561) internal successors, (21069), 16940 states have internal predecessors, (21069), 3292 states have call successors, (3292), 1917 states have call predecessors, (3292), 1917 states have return successors, (3292), 3143 states have call predecessors, (3292), 3292 states have call successors, (3292) [2022-10-16 02:31:43,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22001 states to 22001 states and 27653 transitions. [2022-10-16 02:31:43,003 INFO L78 Accepts]: Start accepts. Automaton has 22001 states and 27653 transitions. Word has length 225 [2022-10-16 02:31:43,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:43,003 INFO L495 AbstractCegarLoop]: Abstraction has 22001 states and 27653 transitions. [2022-10-16 02:31:43,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.142857142857142) internal successors, (282), 13 states have internal predecessors, (282), 6 states have call successors, (45), 4 states have call predecessors, (45), 6 states have return successors, (45), 7 states have call predecessors, (45), 6 states have call successors, (45) [2022-10-16 02:31:43,003 INFO L276 IsEmpty]: Start isEmpty. Operand 22001 states and 27653 transitions. [2022-10-16 02:31:43,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-10-16 02:31:43,009 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:43,010 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:43,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:43,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-10-16 02:31:43,216 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:43,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:43,218 INFO L85 PathProgramCache]: Analyzing trace with hash 149751890, now seen corresponding path program 1 times [2022-10-16 02:31:43,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:43,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340961990] [2022-10-16 02:31:43,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:43,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:31:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:31:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-16 02:31:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-16 02:31:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-10-16 02:31:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-10-16 02:31:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:31:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-10-16 02:31:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-10-16 02:31:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:43,395 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-10-16 02:31:43,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:43,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340961990] [2022-10-16 02:31:43,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340961990] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:31:43,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:31:43,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:31:43,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319880206] [2022-10-16 02:31:43,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:31:43,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:31:43,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:43,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:31:43,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:31:43,398 INFO L87 Difference]: Start difference. First operand 22001 states and 27653 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 02:31:43,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:43,598 INFO L93 Difference]: Finished difference Result 25736 states and 32447 transitions. [2022-10-16 02:31:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:31:43,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 225 [2022-10-16 02:31:43,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:43,658 INFO L225 Difference]: With dead ends: 25736 [2022-10-16 02:31:43,658 INFO L226 Difference]: Without dead ends: 25736 [2022-10-16 02:31:43,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:31:43,659 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 468 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:43,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1320 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:31:43,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25736 states. [2022-10-16 02:31:44,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25736 to 24026. [2022-10-16 02:31:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24026 states, 18314 states have (on average 1.2491536529431035) internal successors, (22877), 18475 states have internal predecessors, (22877), 3614 states have call successors, (3614), 2097 states have call predecessors, (3614), 2097 states have return successors, (3614), 3453 states have call predecessors, (3614), 3614 states have call successors, (3614) [2022-10-16 02:31:44,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24026 states to 24026 states and 30105 transitions. [2022-10-16 02:31:44,064 INFO L78 Accepts]: Start accepts. Automaton has 24026 states and 30105 transitions. Word has length 225 [2022-10-16 02:31:44,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:44,064 INFO L495 AbstractCegarLoop]: Abstraction has 24026 states and 30105 transitions. [2022-10-16 02:31:44,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 02:31:44,065 INFO L276 IsEmpty]: Start isEmpty. Operand 24026 states and 30105 transitions. [2022-10-16 02:31:44,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-10-16 02:31:44,071 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:44,072 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:44,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-10-16 02:31:44,072 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:44,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:44,072 INFO L85 PathProgramCache]: Analyzing trace with hash -2050690281, now seen corresponding path program 1 times [2022-10-16 02:31:44,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:44,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399181648] [2022-10-16 02:31:44,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:44,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:31:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:31:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 02:31:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 02:31:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-10-16 02:31:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-16 02:31:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 02:31:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 02:31:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-10-16 02:31:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 17 proven. 32 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-10-16 02:31:45,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:45,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399181648] [2022-10-16 02:31:45,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399181648] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:45,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065662981] [2022-10-16 02:31:45,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:45,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:45,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:45,405 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:45,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 02:31:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:45,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 02:31:45,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 91 proven. 23 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-10-16 02:31:46,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:46,901 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 30 proven. 19 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-10-16 02:31:46,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065662981] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:46,901 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:46,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 8] total 21 [2022-10-16 02:31:46,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981298130] [2022-10-16 02:31:46,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:46,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 02:31:46,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:46,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 02:31:46,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-10-16 02:31:46,904 INFO L87 Difference]: Start difference. First operand 24026 states and 30105 transitions. Second operand has 21 states, 21 states have (on average 18.047619047619047) internal successors, (379), 21 states have internal predecessors, (379), 10 states have call successors, (49), 5 states have call predecessors, (49), 5 states have return successors, (48), 10 states have call predecessors, (48), 10 states have call successors, (48) [2022-10-16 02:31:51,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:51,572 INFO L93 Difference]: Finished difference Result 30208 states and 39172 transitions. [2022-10-16 02:31:51,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 02:31:51,572 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 18.047619047619047) internal successors, (379), 21 states have internal predecessors, (379), 10 states have call successors, (49), 5 states have call predecessors, (49), 5 states have return successors, (48), 10 states have call predecessors, (48), 10 states have call successors, (48) Word has length 226 [2022-10-16 02:31:51,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:51,619 INFO L225 Difference]: With dead ends: 30208 [2022-10-16 02:31:51,619 INFO L226 Difference]: Without dead ends: 30208 [2022-10-16 02:31:51,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 478 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=765, Invalid=2427, Unknown=0, NotChecked=0, Total=3192 [2022-10-16 02:31:51,620 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 3107 mSDsluCounter, 3112 mSDsCounter, 0 mSdLazyCounter, 3778 mSolverCounterSat, 1127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3108 SdHoareTripleChecker+Valid, 3716 SdHoareTripleChecker+Invalid, 4905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1127 IncrementalHoareTripleChecker+Valid, 3778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:51,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3108 Valid, 3716 Invalid, 4905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1127 Valid, 3778 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-10-16 02:31:51,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30208 states. [2022-10-16 02:31:51,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30208 to 23521. [2022-10-16 02:31:51,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23521 states, 17934 states have (on average 1.248299319727891) internal successors, (22387), 18090 states have internal predecessors, (22387), 3537 states have call successors, (3537), 2049 states have call predecessors, (3537), 2049 states have return successors, (3537), 3381 states have call predecessors, (3537), 3537 states have call successors, (3537) [2022-10-16 02:31:52,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23521 states to 23521 states and 29461 transitions. [2022-10-16 02:31:52,022 INFO L78 Accepts]: Start accepts. Automaton has 23521 states and 29461 transitions. Word has length 226 [2022-10-16 02:31:52,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:52,023 INFO L495 AbstractCegarLoop]: Abstraction has 23521 states and 29461 transitions. [2022-10-16 02:31:52,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 18.047619047619047) internal successors, (379), 21 states have internal predecessors, (379), 10 states have call successors, (49), 5 states have call predecessors, (49), 5 states have return successors, (48), 10 states have call predecessors, (48), 10 states have call successors, (48) [2022-10-16 02:31:52,023 INFO L276 IsEmpty]: Start isEmpty. Operand 23521 states and 29461 transitions. [2022-10-16 02:31:52,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-10-16 02:31:52,031 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:52,031 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:52,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-10-16 02:31:52,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:52,232 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:52,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:52,233 INFO L85 PathProgramCache]: Analyzing trace with hash -500488584, now seen corresponding path program 1 times [2022-10-16 02:31:52,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:52,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857291765] [2022-10-16 02:31:52,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:52,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:31:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:31:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:31:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:31:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:31:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:31:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:31:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:31:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:31:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:31:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:31:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 02:31:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 02:31:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-16 02:31:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-16 02:31:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 02:31:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-10-16 02:31:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 02:31:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-10-16 02:31:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,764 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-10-16 02:31:52,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:52,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857291765] [2022-10-16 02:31:52,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857291765] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:52,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953169968] [2022-10-16 02:31:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:52,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:52,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:52,767 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:52,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 02:31:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:52,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:31:52,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 46 proven. 87 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 02:31:53,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:53,590 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-10-16 02:31:53,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953169968] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:53,590 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:53,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 17 [2022-10-16 02:31:53,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445618532] [2022-10-16 02:31:53,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:53,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 02:31:53,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:53,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 02:31:53,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2022-10-16 02:31:53,596 INFO L87 Difference]: Start difference. First operand 23521 states and 29461 transitions. Second operand has 17 states, 17 states have (on average 17.764705882352942) internal successors, (302), 15 states have internal predecessors, (302), 7 states have call successors, (55), 4 states have call predecessors, (55), 7 states have return successors, (54), 9 states have call predecessors, (54), 7 states have call successors, (54) [2022-10-16 02:31:59,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:59,077 INFO L93 Difference]: Finished difference Result 44179 states and 56786 transitions. [2022-10-16 02:31:59,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-10-16 02:31:59,078 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 17.764705882352942) internal successors, (302), 15 states have internal predecessors, (302), 7 states have call successors, (55), 4 states have call predecessors, (55), 7 states have return successors, (54), 9 states have call predecessors, (54), 7 states have call successors, (54) Word has length 231 [2022-10-16 02:31:59,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:59,152 INFO L225 Difference]: With dead ends: 44179 [2022-10-16 02:31:59,152 INFO L226 Difference]: Without dead ends: 44179 [2022-10-16 02:31:59,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 528 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2542 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1214, Invalid=6618, Unknown=0, NotChecked=0, Total=7832 [2022-10-16 02:31:59,154 INFO L413 NwaCegarLoop]: 1115 mSDtfsCounter, 4620 mSDsluCounter, 9718 mSDsCounter, 0 mSdLazyCounter, 3441 mSolverCounterSat, 2102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4620 SdHoareTripleChecker+Valid, 10833 SdHoareTripleChecker+Invalid, 5543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2102 IncrementalHoareTripleChecker+Valid, 3441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:59,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4620 Valid, 10833 Invalid, 5543 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2102 Valid, 3441 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-10-16 02:31:59,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44179 states. [2022-10-16 02:31:59,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44179 to 25968. [2022-10-16 02:31:59,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25968 states, 19747 states have (on average 1.240542867270978) internal successors, (24497), 19923 states have internal predecessors, (24497), 3855 states have call successors, (3855), 2365 states have call predecessors, (3855), 2365 states have return successors, (3855), 3679 states have call predecessors, (3855), 3855 states have call successors, (3855) [2022-10-16 02:31:59,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25968 states to 25968 states and 32207 transitions. [2022-10-16 02:31:59,713 INFO L78 Accepts]: Start accepts. Automaton has 25968 states and 32207 transitions. Word has length 231 [2022-10-16 02:31:59,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:59,713 INFO L495 AbstractCegarLoop]: Abstraction has 25968 states and 32207 transitions. [2022-10-16 02:31:59,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 17.764705882352942) internal successors, (302), 15 states have internal predecessors, (302), 7 states have call successors, (55), 4 states have call predecessors, (55), 7 states have return successors, (54), 9 states have call predecessors, (54), 7 states have call successors, (54) [2022-10-16 02:31:59,713 INFO L276 IsEmpty]: Start isEmpty. Operand 25968 states and 32207 transitions. [2022-10-16 02:31:59,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-10-16 02:31:59,803 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:59,803 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:59,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 02:32:00,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-10-16 02:32:00,004 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:32:00,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:32:00,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1791273379, now seen corresponding path program 1 times [2022-10-16 02:32:00,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:32:00,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897396564] [2022-10-16 02:32:00,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:00,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:32:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:32:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:32:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:32:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:32:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:32:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:32:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:32:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:32:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:32:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:32:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:32:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-10-16 02:32:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-10-16 02:32:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 02:32:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-10-16 02:32:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:32:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:32:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:32:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:00,153 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-16 02:32:00,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:32:00,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897396564] [2022-10-16 02:32:00,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897396564] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:32:00,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:32:00,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:32:00,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217726251] [2022-10-16 02:32:00,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:32:00,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:32:00,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:32:00,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:32:00,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:32:00,160 INFO L87 Difference]: Start difference. First operand 25968 states and 32207 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 02:32:00,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:32:00,426 INFO L93 Difference]: Finished difference Result 30789 states and 39309 transitions. [2022-10-16 02:32:00,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:32:00,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 230 [2022-10-16 02:32:00,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:32:00,479 INFO L225 Difference]: With dead ends: 30789 [2022-10-16 02:32:00,479 INFO L226 Difference]: Without dead ends: 30789 [2022-10-16 02:32:00,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:32:00,479 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 428 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:32:00,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 1069 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:32:00,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30789 states. [2022-10-16 02:32:00,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30789 to 25956. [2022-10-16 02:32:00,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25956 states, 19735 states have (on average 1.2394730174816315) internal successors, (24461), 19911 states have internal predecessors, (24461), 3855 states have call successors, (3855), 2365 states have call predecessors, (3855), 2365 states have return successors, (3855), 3679 states have call predecessors, (3855), 3855 states have call successors, (3855) [2022-10-16 02:32:00,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25956 states to 25956 states and 32171 transitions. [2022-10-16 02:32:00,933 INFO L78 Accepts]: Start accepts. Automaton has 25956 states and 32171 transitions. Word has length 230 [2022-10-16 02:32:00,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:32:00,934 INFO L495 AbstractCegarLoop]: Abstraction has 25956 states and 32171 transitions. [2022-10-16 02:32:00,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 02:32:00,934 INFO L276 IsEmpty]: Start isEmpty. Operand 25956 states and 32171 transitions. [2022-10-16 02:32:00,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-10-16 02:32:00,942 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:32:00,942 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:32:00,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-10-16 02:32:00,942 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:32:00,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:32:00,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1113713339, now seen corresponding path program 1 times [2022-10-16 02:32:00,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:32:00,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697352047] [2022-10-16 02:32:00,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:00,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:32:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:32:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:32:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 02:32:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 02:32:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 02:32:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 02:32:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 02:32:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 02:32:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 02:32:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 02:32:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 02:32:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-10-16 02:32:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-10-16 02:32:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 02:32:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-10-16 02:32:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 02:32:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:32:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:32:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-10-16 02:32:01,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:32:01,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697352047] [2022-10-16 02:32:01,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697352047] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:32:01,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362815481] [2022-10-16 02:32:01,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:01,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:32:01,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:32:01,468 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:32:01,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 02:32:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:01,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:32:01,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:32:02,000 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 51 proven. 67 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-10-16 02:32:02,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:32:02,324 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-10-16 02:32:02,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362815481] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:32:02,325 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:32:02,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 12 [2022-10-16 02:32:02,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329877056] [2022-10-16 02:32:02,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:32:02,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 02:32:02,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:32:02,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 02:32:02,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-10-16 02:32:02,327 INFO L87 Difference]: Start difference. First operand 25956 states and 32171 transitions. Second operand has 12 states, 12 states have (on average 19.75) internal successors, (237), 11 states have internal predecessors, (237), 5 states have call successors, (37), 4 states have call predecessors, (37), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2022-10-16 02:32:03,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:32:03,857 INFO L93 Difference]: Finished difference Result 34047 states and 44240 transitions. [2022-10-16 02:32:03,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 02:32:03,858 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.75) internal successors, (237), 11 states have internal predecessors, (237), 5 states have call successors, (37), 4 states have call predecessors, (37), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) Word has length 230 [2022-10-16 02:32:03,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:32:03,918 INFO L225 Difference]: With dead ends: 34047 [2022-10-16 02:32:03,918 INFO L226 Difference]: Without dead ends: 34047 [2022-10-16 02:32:03,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 495 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2022-10-16 02:32:03,919 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 1303 mSDsluCounter, 4410 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 5387 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:32:03,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 5387 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 02:32:03,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34047 states. [2022-10-16 02:32:04,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34047 to 21589. [2022-10-16 02:32:04,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21589 states, 16440 states have (on average 1.2394160583941607) internal successors, (20376), 16588 states have internal predecessors, (20376), 3173 states have call successors, (3173), 1975 states have call predecessors, (3173), 1975 states have return successors, (3173), 3025 states have call predecessors, (3173), 3173 states have call successors, (3173) [2022-10-16 02:32:04,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21589 states to 21589 states and 26722 transitions. [2022-10-16 02:32:04,380 INFO L78 Accepts]: Start accepts. Automaton has 21589 states and 26722 transitions. Word has length 230 [2022-10-16 02:32:04,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:32:04,380 INFO L495 AbstractCegarLoop]: Abstraction has 21589 states and 26722 transitions. [2022-10-16 02:32:04,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.75) internal successors, (237), 11 states have internal predecessors, (237), 5 states have call successors, (37), 4 states have call predecessors, (37), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2022-10-16 02:32:04,381 INFO L276 IsEmpty]: Start isEmpty. Operand 21589 states and 26722 transitions. [2022-10-16 02:32:04,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-10-16 02:32:04,389 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:32:04,389 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:32:04,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 02:32:04,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:32:04,590 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:32:04,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:32:04,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1371133285, now seen corresponding path program 1 times [2022-10-16 02:32:04,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:32:04,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415587658] [2022-10-16 02:32:04,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:04,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:32:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:32:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:32:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:32:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:32:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:32:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:32:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:32:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:32:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 02:32:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 02:32:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 02:32:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 02:32:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 02:32:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-16 02:32:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 02:32:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-16 02:32:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 02:32:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 02:32:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-10-16 02:32:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-10-16 02:32:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,158 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-10-16 02:32:05,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:32:05,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415587658] [2022-10-16 02:32:05,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415587658] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:32:05,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472029200] [2022-10-16 02:32:05,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:05,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:32:05,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:32:05,160 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:32:05,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 02:32:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:05,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-16 02:32:05,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:32:06,321 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 115 proven. 27 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-10-16 02:32:06,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:32:06,966 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 31 proven. 22 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-10-16 02:32:06,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472029200] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:32:06,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:32:06,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 25 [2022-10-16 02:32:06,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882844783] [2022-10-16 02:32:06,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:32:06,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 02:32:06,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:32:06,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 02:32:06,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-10-16 02:32:06,968 INFO L87 Difference]: Start difference. First operand 21589 states and 26722 transitions. Second operand has 25 states, 25 states have (on average 15.4) internal successors, (385), 25 states have internal predecessors, (385), 9 states have call successors, (55), 5 states have call predecessors, (55), 6 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) [2022-10-16 02:33:08,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:33:08,122 INFO L93 Difference]: Finished difference Result 123835 states and 165958 transitions. [2022-10-16 02:33:08,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 544 states. [2022-10-16 02:33:08,122 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 15.4) internal successors, (385), 25 states have internal predecessors, (385), 9 states have call successors, (55), 5 states have call predecessors, (55), 6 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) Word has length 234 [2022-10-16 02:33:08,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:33:08,401 INFO L225 Difference]: With dead ends: 123835 [2022-10-16 02:33:08,401 INFO L226 Difference]: Without dead ends: 123759 [2022-10-16 02:33:08,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1133 GetRequests, 571 SyntacticMatches, 1 SemanticMatches, 561 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147267 ImplicationChecksByTransitivity, 29.6s TimeCoverageRelationStatistics Valid=28394, Invalid=288012, Unknown=0, NotChecked=0, Total=316406 [2022-10-16 02:33:08,419 INFO L413 NwaCegarLoop]: 1456 mSDtfsCounter, 14881 mSDsluCounter, 19060 mSDsCounter, 0 mSdLazyCounter, 32759 mSolverCounterSat, 9247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14881 SdHoareTripleChecker+Valid, 20516 SdHoareTripleChecker+Invalid, 42006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 9247 IncrementalHoareTripleChecker+Valid, 32759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time [2022-10-16 02:33:08,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14881 Valid, 20516 Invalid, 42006 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [9247 Valid, 32759 Invalid, 0 Unknown, 0 Unchecked, 28.9s Time] [2022-10-16 02:33:08,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123759 states. [2022-10-16 02:33:10,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123759 to 44382. [2022-10-16 02:33:10,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44382 states, 34407 states have (on average 1.2326852094050629) internal successors, (42413), 34676 states have internal predecessors, (42413), 6073 states have call successors, (6073), 3901 states have call predecessors, (6073), 3901 states have return successors, (6073), 5804 states have call predecessors, (6073), 6073 states have call successors, (6073) [2022-10-16 02:33:10,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44382 states to 44382 states and 54559 transitions. [2022-10-16 02:33:10,136 INFO L78 Accepts]: Start accepts. Automaton has 44382 states and 54559 transitions. Word has length 234 [2022-10-16 02:33:10,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:33:10,137 INFO L495 AbstractCegarLoop]: Abstraction has 44382 states and 54559 transitions. [2022-10-16 02:33:10,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.4) internal successors, (385), 25 states have internal predecessors, (385), 9 states have call successors, (55), 5 states have call predecessors, (55), 6 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) [2022-10-16 02:33:10,137 INFO L276 IsEmpty]: Start isEmpty. Operand 44382 states and 54559 transitions. [2022-10-16 02:33:10,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-10-16 02:33:10,151 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:33:10,152 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:33:10,176 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-10-16 02:33:10,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:33:10,352 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:33:10,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:33:10,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1041884134, now seen corresponding path program 1 times [2022-10-16 02:33:10,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:33:10,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504202806] [2022-10-16 02:33:10,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:33:10,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:33:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:33:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:33:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:33:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:33:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:33:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:33:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:33:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:33:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 02:33:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 02:33:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 02:33:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 02:33:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 02:33:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-16 02:33:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 02:33:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-10-16 02:33:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-10-16 02:33:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-10-16 02:33:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-10-16 02:33:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-10-16 02:33:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:10,556 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-10-16 02:33:10,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:33:10,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504202806] [2022-10-16 02:33:10,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504202806] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:33:10,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:33:10,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:33:10,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167581735] [2022-10-16 02:33:10,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:33:10,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:33:10,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:33:10,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:33:10,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:33:10,558 INFO L87 Difference]: Start difference. First operand 44382 states and 54559 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 02:33:10,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:33:10,958 INFO L93 Difference]: Finished difference Result 42402 states and 52171 transitions. [2022-10-16 02:33:10,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:33:10,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 235 [2022-10-16 02:33:10,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:33:11,030 INFO L225 Difference]: With dead ends: 42402 [2022-10-16 02:33:11,030 INFO L226 Difference]: Without dead ends: 42402 [2022-10-16 02:33:11,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:33:11,031 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 289 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:33:11,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 445 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:33:11,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42402 states. [2022-10-16 02:33:11,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42402 to 42323. [2022-10-16 02:33:11,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42323 states, 32770 states have (on average 1.2340555386023802) internal successors, (40440), 33030 states have internal predecessors, (40440), 5815 states have call successors, (5815), 3737 states have call predecessors, (5815), 3737 states have return successors, (5815), 5555 states have call predecessors, (5815), 5815 states have call successors, (5815) [2022-10-16 02:33:12,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42323 states to 42323 states and 52070 transitions. [2022-10-16 02:33:12,021 INFO L78 Accepts]: Start accepts. Automaton has 42323 states and 52070 transitions. Word has length 235 [2022-10-16 02:33:12,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:33:12,021 INFO L495 AbstractCegarLoop]: Abstraction has 42323 states and 52070 transitions. [2022-10-16 02:33:12,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 02:33:12,022 INFO L276 IsEmpty]: Start isEmpty. Operand 42323 states and 52070 transitions. [2022-10-16 02:33:12,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-10-16 02:33:12,042 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:33:12,042 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:33:12,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-10-16 02:33:12,043 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:33:12,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:33:12,043 INFO L85 PathProgramCache]: Analyzing trace with hash -390794804, now seen corresponding path program 1 times [2022-10-16 02:33:12,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:33:12,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134346225] [2022-10-16 02:33:12,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:33:12,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:33:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:33:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:33:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:33:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:33:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:33:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:33:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:33:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:33:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 02:33:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 02:33:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 02:33:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 02:33:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 02:33:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-16 02:33:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-16 02:33:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-10-16 02:33:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-10-16 02:33:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:33:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:33:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-10-16 02:33:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-10-16 02:33:12,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:33:12,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134346225] [2022-10-16 02:33:12,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134346225] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:33:12,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:33:12,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:33:12,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409934747] [2022-10-16 02:33:12,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:33:12,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:33:12,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:33:12,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:33:12,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:33:12,326 INFO L87 Difference]: Start difference. First operand 42323 states and 52070 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 02:33:12,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:33:12,541 INFO L93 Difference]: Finished difference Result 34417 states and 42532 transitions. [2022-10-16 02:33:12,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:33:12,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 236 [2022-10-16 02:33:12,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:33:12,620 INFO L225 Difference]: With dead ends: 34417 [2022-10-16 02:33:12,620 INFO L226 Difference]: Without dead ends: 34417 [2022-10-16 02:33:12,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:33:12,621 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 216 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:33:12,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 475 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:33:12,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34417 states. [2022-10-16 02:33:13,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34417 to 33960. [2022-10-16 02:33:13,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33960 states, 26212 states have (on average 1.2395467724706242) internal successors, (32491), 26416 states have internal predecessors, (32491), 4735 states have call successors, (4735), 3012 states have call predecessors, (4735), 3012 states have return successors, (4735), 4531 states have call predecessors, (4735), 4735 states have call successors, (4735) [2022-10-16 02:33:13,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33960 states to 33960 states and 41961 transitions. [2022-10-16 02:33:13,477 INFO L78 Accepts]: Start accepts. Automaton has 33960 states and 41961 transitions. Word has length 236 [2022-10-16 02:33:13,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:33:13,477 INFO L495 AbstractCegarLoop]: Abstraction has 33960 states and 41961 transitions. [2022-10-16 02:33:13,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 02:33:13,477 INFO L276 IsEmpty]: Start isEmpty. Operand 33960 states and 41961 transitions. [2022-10-16 02:33:13,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-10-16 02:33:13,488 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:33:13,488 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:33:13,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-10-16 02:33:13,488 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:33:13,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:33:13,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1818484517, now seen corresponding path program 1 times [2022-10-16 02:33:13,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:33:13,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925132324] [2022-10-16 02:33:13,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:33:13,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:33:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 02:33:14,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 02:33:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 02:33:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 02:33:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 02:33:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 02:33:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:33:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 02:33:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 02:33:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 02:33:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 02:33:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 02:33:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 02:33:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 02:33:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 02:33:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-16 02:33:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 02:33:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 02:33:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-10-16 02:33:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-10-16 02:33:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,359 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 28 proven. 19 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-10-16 02:33:14,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:33:14,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925132324] [2022-10-16 02:33:14,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925132324] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:33:14,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349431949] [2022-10-16 02:33:14,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:33:14,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:33:14,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:33:14,362 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:33:14,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 02:33:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:33:14,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 02:33:14,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:33:14,913 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 135 proven. 31 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 02:33:14,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:33:15,219 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 53 proven. 8 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-10-16 02:33:15,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349431949] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:33:15,220 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:33:15,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 23 [2022-10-16 02:33:15,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594224426] [2022-10-16 02:33:15,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:33:15,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 02:33:15,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:33:15,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 02:33:15,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2022-10-16 02:33:15,222 INFO L87 Difference]: Start difference. First operand 33960 states and 41961 transitions. Second operand has 23 states, 23 states have (on average 13.565217391304348) internal successors, (312), 20 states have internal predecessors, (312), 7 states have call successors, (52), 4 states have call predecessors, (52), 8 states have return successors, (52), 10 states have call predecessors, (52), 7 states have call successors, (52)