/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 config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf -i ../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-08 17:09:02,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 17:09:02,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 17:09:02,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-08 17:09:02,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-08 17:09:02,434 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 17:09:02,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 17:09:02,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 17:09:02,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 17:09:02,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 17:09:02,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 17:09:02,440 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 17:09:02,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 17:09:02,440 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 17:09:02,441 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-08 17:09:02,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 17:09:02,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 17:09:02,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 17:09:02,442 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-08 17:09:02,443 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-08 17:09:02,443 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-08 17:09:02,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 17:09:02,444 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-08 17:09:02,444 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-08 17:09:02,444 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-08 17:09:02,444 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 17:09:02,445 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 17:09:02,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 17:09:02,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 17:09:02,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 17:09:02,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 17:09:02,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 17:09:02,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 17:09:02,446 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-08 17:09:02,447 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-08 17:09:02,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 17:09:02,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-08 17:09:02,448 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-08 17:09:02,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 17:09:02,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 17:09:02,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 17:09:02,866 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 17:09:02,867 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 17:09:02,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2021-10-08 17:09:02,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/818d60c24/1cb3ff301d254811a6bc0c5ec4550603/FLAGaa0272185 [2021-10-08 17:09:03,565 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 17:09:03,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2021-10-08 17:09:03,581 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/818d60c24/1cb3ff301d254811a6bc0c5ec4550603/FLAGaa0272185 [2021-10-08 17:09:03,934 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/818d60c24/1cb3ff301d254811a6bc0c5ec4550603 [2021-10-08 17:09:03,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 17:09:03,949 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-08 17:09:03,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 17:09:03,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 17:09:03,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 17:09:03,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 05:09:03" (1/1) ... [2021-10-08 17:09:03,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b5e73d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:09:03, skipping insertion in model container [2021-10-08 17:09:03,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 05:09:03" (1/1) ... [2021-10-08 17:09:03,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 17:09:04,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 17:09:04,283 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c[3401,3414] [2021-10-08 17:09:04,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 17:09:04,300 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 17:09:04,353 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c[3401,3414] [2021-10-08 17:09:04,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 17:09:04,377 INFO L208 MainTranslator]: Completed translation [2021-10-08 17:09:04,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:09:04 WrapperNode [2021-10-08 17:09:04,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 17:09:04,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 17:09:04,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 17:09:04,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 17:09:04,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:09:04" (1/1) ... [2021-10-08 17:09:04,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:09:04" (1/1) ... [2021-10-08 17:09:04,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 17:09:04,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 17:09:04,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 17:09:04,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 17:09:04,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:09:04" (1/1) ... [2021-10-08 17:09:04,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:09:04" (1/1) ... [2021-10-08 17:09:04,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:09:04" (1/1) ... [2021-10-08 17:09:04,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:09:04" (1/1) ... [2021-10-08 17:09:04,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:09:04" (1/1) ... [2021-10-08 17:09:04,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:09:04" (1/1) ... [2021-10-08 17:09:04,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:09:04" (1/1) ... [2021-10-08 17:09:04,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 17:09:04,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 17:09:04,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 17:09:04,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 17:09:04,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:09:04" (1/1) ... [2021-10-08 17:09:04,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 17:09:04,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 17:09:04,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-08 17:09:04,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-08 17:09:04,616 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 17:09:04,617 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 17:09:04,617 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 17:09:04,617 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 17:09:04,617 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-08 17:09:04,617 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-08 17:09:04,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-08 17:09:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 17:09:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-08 17:09:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 17:09:04,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 17:09:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 17:09:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-08 17:09:04,620 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-08 17:09:05,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 17:09:05,299 INFO L299 CfgBuilder]: Removed 32 assume(true) statements. [2021-10-08 17:09:05,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 05:09:05 BoogieIcfgContainer [2021-10-08 17:09:05,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 17:09:05,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 17:09:05,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 17:09:05,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 17:09:05,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 05:09:03" (1/3) ... [2021-10-08 17:09:05,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b10fe59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 05:09:05, skipping insertion in model container [2021-10-08 17:09:05,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:09:04" (2/3) ... [2021-10-08 17:09:05,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b10fe59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 05:09:05, skipping insertion in model container [2021-10-08 17:09:05,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 05:09:05" (3/3) ... [2021-10-08 17:09:05,311 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2021-10-08 17:09:05,318 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 17:09:05,318 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-10-08 17:09:05,318 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 17:09:05,370 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,371 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,371 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,371 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,371 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,372 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,372 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,373 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,373 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,373 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,374 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,374 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,375 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,375 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,375 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,375 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,376 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,376 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,376 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,376 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,377 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,377 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,378 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,378 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,378 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,378 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,378 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,379 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,379 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,381 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,381 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,381 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,381 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,382 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,382 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,382 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,382 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,383 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,383 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,383 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,383 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,383 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,383 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,384 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,384 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,384 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,385 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,385 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,385 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,386 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,386 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,386 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,387 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,387 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,388 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,388 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,388 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,388 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,389 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,389 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,389 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,390 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,390 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,391 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,391 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,391 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,391 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,391 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,395 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,395 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,395 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,395 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,396 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,396 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,396 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,396 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,399 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,400 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,400 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,405 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,410 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,410 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,411 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,411 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,411 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,411 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,411 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,412 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,412 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,414 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,414 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,414 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,414 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,415 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,415 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,415 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,415 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,415 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,416 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,416 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,416 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,416 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,416 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,417 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,417 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,417 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,417 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,417 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,418 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,418 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,418 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,418 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,418 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,419 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,419 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,419 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,419 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,419 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,420 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,420 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,420 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,420 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,420 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,420 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,421 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,421 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,421 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,421 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,421 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,421 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,424 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,424 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,424 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,424 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,425 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,425 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,425 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,425 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,426 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,426 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,426 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,426 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,426 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,426 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,427 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,427 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,427 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,427 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,427 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,428 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,428 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,428 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,428 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,428 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,429 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,429 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,429 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,429 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,429 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,429 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,430 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,430 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,430 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,430 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,431 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,431 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,431 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,432 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,432 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,432 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,432 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,433 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,433 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,433 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,433 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,434 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,434 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,434 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,435 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,435 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,436 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,436 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,436 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,436 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,436 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,437 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,437 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,437 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,437 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,443 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,444 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,444 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,444 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,445 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,445 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,445 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,445 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,446 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,446 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,446 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,446 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,447 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,447 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,447 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,454 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,455 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,459 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,460 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,462 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,462 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,463 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,467 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,468 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,468 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,468 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,468 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,469 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,469 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,472 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,473 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,473 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,473 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,473 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,474 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,474 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:09:05,487 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-08 17:09:05,553 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 17:09:05,565 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-08 17:09:05,565 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-10-08 17:09:05,595 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 17:09:05,608 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 249 transitions, 522 flow [2021-10-08 17:09:05,612 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 249 transitions, 522 flow [2021-10-08 17:09:05,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 249 transitions, 522 flow [2021-10-08 17:09:05,792 INFO L129 PetriNetUnfolder]: 20/246 cut-off events. [2021-10-08 17:09:05,793 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-08 17:09:05,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 246 events. 20/246 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 397 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 166. Up to 2 conditions per place. [2021-10-08 17:09:05,822 INFO L116 LiptonReduction]: Number of co-enabled transitions 17664 [2021-10-08 17:09:19,070 INFO L131 LiptonReduction]: Checked pairs total: 63179 [2021-10-08 17:09:19,070 INFO L133 LiptonReduction]: Total number of compositions: 244 [2021-10-08 17:09:19,086 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 91 transitions, 206 flow [2021-10-08 17:09:20,383 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 24699 states, 24685 states have (on average 4.1026939436905) internal successors, (101275), 24698 states have internal predecessors, (101275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:20,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 24699 states, 24685 states have (on average 4.1026939436905) internal successors, (101275), 24698 states have internal predecessors, (101275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:20,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-08 17:09:20,460 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:20,461 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-08 17:09:20,461 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:20,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:20,470 INFO L82 PathProgramCache]: Analyzing trace with hash 993, now seen corresponding path program 1 times [2021-10-08 17:09:20,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:20,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693963395] [2021-10-08 17:09:20,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:09:20,484 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:20,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:20,488 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:20,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-08 17:09:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:09:20,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-08 17:09:20,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:20,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:20,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:20,671 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:20,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693963395] [2021-10-08 17:09:20,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693963395] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:20,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:20,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-08 17:09:20,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162780811] [2021-10-08 17:09:20,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-08 17:09:20,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:20,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-08 17:09:20,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-08 17:09:20,751 INFO L87 Difference]: Start difference. First operand has 24699 states, 24685 states have (on average 4.1026939436905) internal successors, (101275), 24698 states have internal predecessors, (101275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:21,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:21,526 INFO L93 Difference]: Finished difference Result 24696 states and 94500 transitions. [2021-10-08 17:09:21,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-08 17:09:21,528 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2021-10-08 17:09:21,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:21,853 INFO L225 Difference]: With dead ends: 24696 [2021-10-08 17:09:21,853 INFO L226 Difference]: Without dead ends: 24696 [2021-10-08 17:09:21,855 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-08 17:09:22,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24696 states. [2021-10-08 17:09:23,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24696 to 24696. [2021-10-08 17:09:23,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24696 states, 24685 states have (on average 3.828235770710958) internal successors, (94500), 24695 states have internal predecessors, (94500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:23,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24696 states to 24696 states and 94500 transitions. [2021-10-08 17:09:23,828 INFO L78 Accepts]: Start accepts. Automaton has 24696 states and 94500 transitions. Word has length 1 [2021-10-08 17:09:23,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:23,829 INFO L470 AbstractCegarLoop]: Abstraction has 24696 states and 94500 transitions. [2021-10-08 17:09:23,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:23,829 INFO L276 IsEmpty]: Start isEmpty. Operand 24696 states and 94500 transitions. [2021-10-08 17:09:23,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 17:09:23,830 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:23,830 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 17:09:23,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-08 17:09:24,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:24,044 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:24,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:24,045 INFO L82 PathProgramCache]: Analyzing trace with hash 976375, now seen corresponding path program 1 times [2021-10-08 17:09:24,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:24,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591394051] [2021-10-08 17:09:24,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:09:24,046 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:24,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:24,048 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:24,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-08 17:09:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:09:24,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-08 17:09:24,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:24,215 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-08 17:09:24,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 22 [2021-10-08 17:09:24,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:24,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:24,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:24,302 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:24,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591394051] [2021-10-08 17:09:24,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591394051] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:24,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:24,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-08 17:09:24,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357425506] [2021-10-08 17:09:24,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 17:09:24,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:24,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 17:09:24,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:09:24,309 INFO L87 Difference]: Start difference. First operand 24696 states and 94500 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:24,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:24,793 INFO L93 Difference]: Finished difference Result 24355 states and 93457 transitions. [2021-10-08 17:09:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:09:24,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-08 17:09:24,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:24,993 INFO L225 Difference]: With dead ends: 24355 [2021-10-08 17:09:25,140 INFO L226 Difference]: Without dead ends: 24355 [2021-10-08 17:09:25,141 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:09:25,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24355 states. [2021-10-08 17:09:26,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24355 to 24355. [2021-10-08 17:09:26,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24355 states, 24346 states have (on average 3.83870040253019) internal successors, (93457), 24354 states have internal predecessors, (93457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:26,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24355 states to 24355 states and 93457 transitions. [2021-10-08 17:09:26,569 INFO L78 Accepts]: Start accepts. Automaton has 24355 states and 93457 transitions. Word has length 3 [2021-10-08 17:09:26,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:26,570 INFO L470 AbstractCegarLoop]: Abstraction has 24355 states and 93457 transitions. [2021-10-08 17:09:26,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:26,570 INFO L276 IsEmpty]: Start isEmpty. Operand 24355 states and 93457 transitions. [2021-10-08 17:09:26,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 17:09:26,571 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:26,571 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 17:09:26,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-08 17:09:26,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:26,785 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:26,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:26,786 INFO L82 PathProgramCache]: Analyzing trace with hash 976376, now seen corresponding path program 1 times [2021-10-08 17:09:26,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:26,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900034440] [2021-10-08 17:09:26,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:09:26,788 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:26,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:26,789 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:26,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-08 17:09:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:09:26,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 17:09:26,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:27,019 INFO L354 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2021-10-08 17:09:27,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 64 [2021-10-08 17:09:27,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 64 [2021-10-08 17:09:27,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:27,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:27,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:27,320 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:27,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900034440] [2021-10-08 17:09:27,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900034440] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:27,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:27,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-08 17:09:27,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077322063] [2021-10-08 17:09:27,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 17:09:27,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:27,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 17:09:27,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 17:09:27,323 INFO L87 Difference]: Start difference. First operand 24355 states and 93457 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:27,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:27,795 INFO L93 Difference]: Finished difference Result 24014 states and 92414 transitions. [2021-10-08 17:09:27,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:09:27,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-08 17:09:27,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:28,041 INFO L225 Difference]: With dead ends: 24014 [2021-10-08 17:09:28,041 INFO L226 Difference]: Without dead ends: 24014 [2021-10-08 17:09:28,042 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 17:09:28,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24014 states. [2021-10-08 17:09:29,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24014 to 24014. [2021-10-08 17:09:29,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24014 states, 24007 states have (on average 3.84946057399925) internal successors, (92414), 24013 states have internal predecessors, (92414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:29,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24014 states to 24014 states and 92414 transitions. [2021-10-08 17:09:29,265 INFO L78 Accepts]: Start accepts. Automaton has 24014 states and 92414 transitions. Word has length 3 [2021-10-08 17:09:29,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:29,266 INFO L470 AbstractCegarLoop]: Abstraction has 24014 states and 92414 transitions. [2021-10-08 17:09:29,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:29,266 INFO L276 IsEmpty]: Start isEmpty. Operand 24014 states and 92414 transitions. [2021-10-08 17:09:29,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 17:09:29,267 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:29,267 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-08 17:09:29,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-08 17:09:29,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:29,480 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:29,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:29,481 INFO L82 PathProgramCache]: Analyzing trace with hash 938318423, now seen corresponding path program 1 times [2021-10-08 17:09:29,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:29,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958829043] [2021-10-08 17:09:29,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:09:29,483 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:29,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:29,484 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:29,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-08 17:09:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:09:29,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-08 17:09:29,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:29,695 INFO L354 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2021-10-08 17:09:29,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 49 [2021-10-08 17:09:29,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:29,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:29,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:29,911 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:29,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958829043] [2021-10-08 17:09:29,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [958829043] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:29,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:29,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-08 17:09:29,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943463750] [2021-10-08 17:09:29,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 17:09:29,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:29,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 17:09:29,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 17:09:29,914 INFO L87 Difference]: Start difference. First operand 24014 states and 92414 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:30,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:30,386 INFO L93 Difference]: Finished difference Result 23690 states and 91424 transitions. [2021-10-08 17:09:30,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:09:30,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-08 17:09:30,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:30,526 INFO L225 Difference]: With dead ends: 23690 [2021-10-08 17:09:30,527 INFO L226 Difference]: Without dead ends: 23690 [2021-10-08 17:09:30,527 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 17:09:30,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23690 states. [2021-10-08 17:09:31,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23690 to 23690. [2021-10-08 17:09:31,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23690 states, 23685 states have (on average 3.8599957779185137) internal successors, (91424), 23689 states have internal predecessors, (91424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:31,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23690 states to 23690 states and 91424 transitions. [2021-10-08 17:09:31,935 INFO L78 Accepts]: Start accepts. Automaton has 23690 states and 91424 transitions. Word has length 5 [2021-10-08 17:09:31,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:31,937 INFO L470 AbstractCegarLoop]: Abstraction has 23690 states and 91424 transitions. [2021-10-08 17:09:31,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:31,938 INFO L276 IsEmpty]: Start isEmpty. Operand 23690 states and 91424 transitions. [2021-10-08 17:09:31,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 17:09:31,939 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:31,939 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-08 17:09:31,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-08 17:09:32,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:32,150 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:32,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:32,151 INFO L82 PathProgramCache]: Analyzing trace with hash 938318425, now seen corresponding path program 1 times [2021-10-08 17:09:32,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:32,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849329707] [2021-10-08 17:09:32,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:09:32,152 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:32,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:32,156 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:32,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-08 17:09:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:09:32,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-08 17:09:32,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:32,247 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-08 17:09:32,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 22 [2021-10-08 17:09:32,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:32,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:32,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:32,294 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:32,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849329707] [2021-10-08 17:09:32,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849329707] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:32,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:32,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-08 17:09:32,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354357283] [2021-10-08 17:09:32,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 17:09:32,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:32,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 17:09:32,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:09:32,297 INFO L87 Difference]: Start difference. First operand 23690 states and 91424 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:32,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:32,511 INFO L93 Difference]: Finished difference Result 23366 states and 90434 transitions. [2021-10-08 17:09:32,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:09:32,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-08 17:09:32,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:32,625 INFO L225 Difference]: With dead ends: 23366 [2021-10-08 17:09:32,626 INFO L226 Difference]: Without dead ends: 23366 [2021-10-08 17:09:32,626 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:09:32,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23366 states. [2021-10-08 17:09:33,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23366 to 23366. [2021-10-08 17:09:33,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23366 states, 23363 states have (on average 3.870821384240038) internal successors, (90434), 23365 states have internal predecessors, (90434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:34,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23366 states to 23366 states and 90434 transitions. [2021-10-08 17:09:34,003 INFO L78 Accepts]: Start accepts. Automaton has 23366 states and 90434 transitions. Word has length 5 [2021-10-08 17:09:34,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:34,003 INFO L470 AbstractCegarLoop]: Abstraction has 23366 states and 90434 transitions. [2021-10-08 17:09:34,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:34,004 INFO L276 IsEmpty]: Start isEmpty. Operand 23366 states and 90434 transitions. [2021-10-08 17:09:34,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 17:09:34,004 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:34,005 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:09:34,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-08 17:09:34,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:34,207 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:34,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:34,209 INFO L82 PathProgramCache]: Analyzing trace with hash -219103589, now seen corresponding path program 1 times [2021-10-08 17:09:34,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:34,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193560576] [2021-10-08 17:09:34,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:09:34,211 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:34,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:34,212 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:34,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-08 17:09:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:09:34,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-08 17:09:34,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:34,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:34,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:34,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:34,478 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:34,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193560576] [2021-10-08 17:09:34,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193560576] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:34,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:34,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-08 17:09:34,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612957651] [2021-10-08 17:09:34,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 17:09:34,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:34,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 17:09:34,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:09:34,483 INFO L87 Difference]: Start difference. First operand 23366 states and 90434 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:34,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:34,693 INFO L93 Difference]: Finished difference Result 17858 states and 67466 transitions. [2021-10-08 17:09:34,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:09:34,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-08 17:09:34,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:34,801 INFO L225 Difference]: With dead ends: 17858 [2021-10-08 17:09:34,801 INFO L226 Difference]: Without dead ends: 17858 [2021-10-08 17:09:34,804 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:09:34,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17858 states. [2021-10-08 17:09:35,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17858 to 17858. [2021-10-08 17:09:35,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17858 states, 17856 states have (on average 3.778337813620072) internal successors, (67466), 17857 states have internal predecessors, (67466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:35,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17858 states to 17858 states and 67466 transitions. [2021-10-08 17:09:35,594 INFO L78 Accepts]: Start accepts. Automaton has 17858 states and 67466 transitions. Word has length 7 [2021-10-08 17:09:35,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:35,594 INFO L470 AbstractCegarLoop]: Abstraction has 17858 states and 67466 transitions. [2021-10-08 17:09:35,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:35,594 INFO L276 IsEmpty]: Start isEmpty. Operand 17858 states and 67466 transitions. [2021-10-08 17:09:35,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 17:09:35,595 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:35,595 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:09:35,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-08 17:09:35,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:35,796 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:35,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:35,798 INFO L82 PathProgramCache]: Analyzing trace with hash -219103588, now seen corresponding path program 1 times [2021-10-08 17:09:35,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:35,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102377114] [2021-10-08 17:09:35,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:09:35,799 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:35,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:35,801 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:35,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-08 17:09:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:09:35,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-08 17:09:35,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:35,916 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-08 17:09:35,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 22 [2021-10-08 17:09:35,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:35,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:36,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:36,035 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:36,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102377114] [2021-10-08 17:09:36,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102377114] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:36,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:36,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-08 17:09:36,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311010864] [2021-10-08 17:09:36,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 17:09:36,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:36,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 17:09:36,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 17:09:36,039 INFO L87 Difference]: Start difference. First operand 17858 states and 67466 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:36,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:36,161 INFO L93 Difference]: Finished difference Result 12350 states and 44498 transitions. [2021-10-08 17:09:36,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:09:36,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-08 17:09:36,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:36,212 INFO L225 Difference]: With dead ends: 12350 [2021-10-08 17:09:36,212 INFO L226 Difference]: Without dead ends: 12350 [2021-10-08 17:09:36,213 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.1ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 17:09:36,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12350 states. [2021-10-08 17:09:36,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12350 to 12350. [2021-10-08 17:09:36,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12350 states, 12349 states have (on average 3.6033686938213623) internal successors, (44498), 12349 states have internal predecessors, (44498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:36,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12350 states to 12350 states and 44498 transitions. [2021-10-08 17:09:36,827 INFO L78 Accepts]: Start accepts. Automaton has 12350 states and 44498 transitions. Word has length 7 [2021-10-08 17:09:36,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:36,827 INFO L470 AbstractCegarLoop]: Abstraction has 12350 states and 44498 transitions. [2021-10-08 17:09:36,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:36,828 INFO L276 IsEmpty]: Start isEmpty. Operand 12350 states and 44498 transitions. [2021-10-08 17:09:36,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:09:36,881 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:36,881 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:09:36,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-08 17:09:37,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:37,099 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:37,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:37,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1663488652, now seen corresponding path program 1 times [2021-10-08 17:09:37,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:37,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47478093] [2021-10-08 17:09:37,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:09:37,101 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:37,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:37,102 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:37,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-08 17:09:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:09:37,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-08 17:09:37,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:37,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:37,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:37,434 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:37,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47478093] [2021-10-08 17:09:37,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47478093] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:37,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:37,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-08 17:09:37,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783735395] [2021-10-08 17:09:37,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 17:09:37,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:37,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 17:09:37,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-08 17:09:37,437 INFO L87 Difference]: Start difference. First operand 12350 states and 44498 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:37,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:37,589 INFO L93 Difference]: Finished difference Result 12962 states and 46081 transitions. [2021-10-08 17:09:37,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 17:09:37,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:09:37,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:37,674 INFO L225 Difference]: With dead ends: 12962 [2021-10-08 17:09:37,674 INFO L226 Difference]: Without dead ends: 12350 [2021-10-08 17:09:37,674 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.7ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-08 17:09:37,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12350 states. [2021-10-08 17:09:38,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12350 to 12350. [2021-10-08 17:09:38,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12350 states, 12349 states have (on average 3.577131751558831) internal successors, (44174), 12349 states have internal predecessors, (44174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:38,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12350 states to 12350 states and 44174 transitions. [2021-10-08 17:09:38,407 INFO L78 Accepts]: Start accepts. Automaton has 12350 states and 44174 transitions. Word has length 53 [2021-10-08 17:09:38,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:38,408 INFO L470 AbstractCegarLoop]: Abstraction has 12350 states and 44174 transitions. [2021-10-08 17:09:38,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:38,408 INFO L276 IsEmpty]: Start isEmpty. Operand 12350 states and 44174 transitions. [2021-10-08 17:09:38,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:09:38,452 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:38,452 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:09:38,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-08 17:09:38,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:38,666 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:38,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:38,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1229538064, now seen corresponding path program 2 times [2021-10-08 17:09:38,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:38,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127706984] [2021-10-08 17:09:38,668 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:09:38,669 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:38,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:38,670 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:38,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-08 17:09:38,779 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:09:38,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:09:38,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-08 17:09:38,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:39,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:39,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:39,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:39,205 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:39,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127706984] [2021-10-08 17:09:39,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127706984] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:39,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:39,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-08 17:09:39,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134680311] [2021-10-08 17:09:39,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 17:09:39,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:39,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 17:09:39,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-08 17:09:39,207 INFO L87 Difference]: Start difference. First operand 12350 states and 44174 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:39,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:39,722 INFO L93 Difference]: Finished difference Result 14020 states and 49234 transitions. [2021-10-08 17:09:39,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 17:09:39,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:09:39,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:39,795 INFO L225 Difference]: With dead ends: 14020 [2021-10-08 17:09:39,795 INFO L226 Difference]: Without dead ends: 14020 [2021-10-08 17:09:39,797 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 67.6ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-08 17:09:39,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14020 states. [2021-10-08 17:09:40,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14020 to 12614. [2021-10-08 17:09:40,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12614 states, 12613 states have (on average 3.528105922460953) internal successors, (44500), 12613 states have internal predecessors, (44500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:40,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12614 states to 12614 states and 44500 transitions. [2021-10-08 17:09:40,519 INFO L78 Accepts]: Start accepts. Automaton has 12614 states and 44500 transitions. Word has length 53 [2021-10-08 17:09:40,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:40,520 INFO L470 AbstractCegarLoop]: Abstraction has 12614 states and 44500 transitions. [2021-10-08 17:09:40,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:40,520 INFO L276 IsEmpty]: Start isEmpty. Operand 12614 states and 44500 transitions. [2021-10-08 17:09:40,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:09:40,566 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:40,567 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:09:40,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-08 17:09:40,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:40,768 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:40,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:40,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1059336432, now seen corresponding path program 3 times [2021-10-08 17:09:40,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:40,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790462103] [2021-10-08 17:09:40,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:09:40,771 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:40,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:40,772 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:40,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-08 17:09:40,924 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:09:40,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:09:40,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-08 17:09:40,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:41,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:41,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:41,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:41,386 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:41,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790462103] [2021-10-08 17:09:41,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790462103] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:41,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:41,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-08 17:09:41,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340146559] [2021-10-08 17:09:41,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 17:09:41,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:41,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 17:09:41,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-08 17:09:41,390 INFO L87 Difference]: Start difference. First operand 12614 states and 44500 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:42,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:42,210 INFO L93 Difference]: Finished difference Result 16034 states and 55690 transitions. [2021-10-08 17:09:42,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 17:09:42,211 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:09:42,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:42,536 INFO L225 Difference]: With dead ends: 16034 [2021-10-08 17:09:42,536 INFO L226 Difference]: Without dead ends: 16034 [2021-10-08 17:09:42,540 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 142.7ms TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-10-08 17:09:42,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16034 states. [2021-10-08 17:09:42,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16034 to 13910. [2021-10-08 17:09:42,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13910 states, 13909 states have (on average 3.511036019843267) internal successors, (48835), 13909 states have internal predecessors, (48835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:43,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13910 states to 13910 states and 48835 transitions. [2021-10-08 17:09:43,040 INFO L78 Accepts]: Start accepts. Automaton has 13910 states and 48835 transitions. Word has length 53 [2021-10-08 17:09:43,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:43,041 INFO L470 AbstractCegarLoop]: Abstraction has 13910 states and 48835 transitions. [2021-10-08 17:09:43,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:43,041 INFO L276 IsEmpty]: Start isEmpty. Operand 13910 states and 48835 transitions. [2021-10-08 17:09:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:09:43,085 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:43,085 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:09:43,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-08 17:09:43,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:43,299 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:43,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:43,300 INFO L82 PathProgramCache]: Analyzing trace with hash -669277124, now seen corresponding path program 4 times [2021-10-08 17:09:43,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:43,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603998109] [2021-10-08 17:09:43,302 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:09:43,302 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:43,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:43,303 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:43,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-08 17:09:43,456 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:09:43,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:09:43,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 17:09:43,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:43,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:43,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:43,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:43,673 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:43,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603998109] [2021-10-08 17:09:43,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1603998109] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:43,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:43,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-08 17:09:43,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869033200] [2021-10-08 17:09:43,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 17:09:43,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:43,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 17:09:43,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-08 17:09:43,675 INFO L87 Difference]: Start difference. First operand 13910 states and 48835 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:44,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:44,036 INFO L93 Difference]: Finished difference Result 14590 states and 50601 transitions. [2021-10-08 17:09:44,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 17:09:44,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:09:44,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:44,125 INFO L225 Difference]: With dead ends: 14590 [2021-10-08 17:09:44,126 INFO L226 Difference]: Without dead ends: 13910 [2021-10-08 17:09:44,126 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.3ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-08 17:09:44,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13910 states. [2021-10-08 17:09:44,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13910 to 13910. [2021-10-08 17:09:44,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13910 states, 13909 states have (on average 3.482852829103458) internal successors, (48443), 13909 states have internal predecessors, (48443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:44,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13910 states to 13910 states and 48443 transitions. [2021-10-08 17:09:44,530 INFO L78 Accepts]: Start accepts. Automaton has 13910 states and 48443 transitions. Word has length 53 [2021-10-08 17:09:44,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:44,530 INFO L470 AbstractCegarLoop]: Abstraction has 13910 states and 48443 transitions. [2021-10-08 17:09:44,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:44,530 INFO L276 IsEmpty]: Start isEmpty. Operand 13910 states and 48443 transitions. [2021-10-08 17:09:44,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:09:44,571 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:44,572 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:09:44,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-08 17:09:44,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:44,785 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:44,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:44,786 INFO L82 PathProgramCache]: Analyzing trace with hash -437766866, now seen corresponding path program 5 times [2021-10-08 17:09:44,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:44,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269686465] [2021-10-08 17:09:44,788 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:09:44,789 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:44,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:44,791 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:44,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-08 17:09:44,974 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:09:44,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:09:44,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-08 17:09:44,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:45,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:45,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:46,533 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:46,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269686465] [2021-10-08 17:09:46,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269686465] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:46,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:46,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-08 17:09:46,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950585596] [2021-10-08 17:09:46,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 17:09:46,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:46,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 17:09:46,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-10-08 17:09:46,536 INFO L87 Difference]: Start difference. First operand 13910 states and 48443 transitions. Second operand has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:48,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:48,027 INFO L93 Difference]: Finished difference Result 20838 states and 72371 transitions. [2021-10-08 17:09:48,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 17:09:48,028 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:09:48,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:48,090 INFO L225 Difference]: With dead ends: 20838 [2021-10-08 17:09:48,090 INFO L226 Difference]: Without dead ends: 20476 [2021-10-08 17:09:48,091 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 517.3ms TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:09:48,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20476 states. [2021-10-08 17:09:48,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20476 to 15110. [2021-10-08 17:09:48,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15110 states, 15109 states have (on average 3.464888477066649) internal successors, (52351), 15109 states have internal predecessors, (52351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:48,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15110 states to 15110 states and 52351 transitions. [2021-10-08 17:09:48,653 INFO L78 Accepts]: Start accepts. Automaton has 15110 states and 52351 transitions. Word has length 53 [2021-10-08 17:09:48,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:48,653 INFO L470 AbstractCegarLoop]: Abstraction has 15110 states and 52351 transitions. [2021-10-08 17:09:48,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:48,654 INFO L276 IsEmpty]: Start isEmpty. Operand 15110 states and 52351 transitions. [2021-10-08 17:09:48,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:09:48,689 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:48,689 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:09:48,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-08 17:09:48,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:48,895 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:48,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:48,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1943986678, now seen corresponding path program 6 times [2021-10-08 17:09:48,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:48,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597761873] [2021-10-08 17:09:48,898 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:09:48,898 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:48,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:48,900 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:48,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-08 17:09:49,096 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:09:49,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:09:49,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-08 17:09:49,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:49,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:49,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:49,491 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:49,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597761873] [2021-10-08 17:09:49,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597761873] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:49,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:49,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-08 17:09:49,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387771060] [2021-10-08 17:09:49,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 17:09:49,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:49,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 17:09:49,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-08 17:09:49,494 INFO L87 Difference]: Start difference. First operand 15110 states and 52351 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:49,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:49,810 INFO L93 Difference]: Finished difference Result 16689 states and 56475 transitions. [2021-10-08 17:09:49,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 17:09:49,811 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:09:49,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:49,860 INFO L225 Difference]: With dead ends: 16689 [2021-10-08 17:09:49,860 INFO L226 Difference]: Without dead ends: 16304 [2021-10-08 17:09:49,861 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 105.9ms TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-08 17:09:49,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16304 states. [2021-10-08 17:09:50,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16304 to 15114. [2021-10-08 17:09:50,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15114 states, 15113 states have (on average 3.460861509958314) internal successors, (52304), 15113 states have internal predecessors, (52304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:50,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15114 states to 15114 states and 52304 transitions. [2021-10-08 17:09:50,390 INFO L78 Accepts]: Start accepts. Automaton has 15114 states and 52304 transitions. Word has length 53 [2021-10-08 17:09:50,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:50,391 INFO L470 AbstractCegarLoop]: Abstraction has 15114 states and 52304 transitions. [2021-10-08 17:09:50,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:50,391 INFO L276 IsEmpty]: Start isEmpty. Operand 15114 states and 52304 transitions. [2021-10-08 17:09:50,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:09:50,423 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:50,423 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:09:50,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-08 17:09:50,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:50,635 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:50,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:50,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1270431918, now seen corresponding path program 7 times [2021-10-08 17:09:50,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:50,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866576804] [2021-10-08 17:09:50,636 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:09:50,636 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:50,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:50,637 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:50,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-08 17:09:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:09:50,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-08 17:09:50,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:50,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:50,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:51,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:51,058 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:51,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866576804] [2021-10-08 17:09:51,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866576804] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:51,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:51,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-08 17:09:51,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429593027] [2021-10-08 17:09:51,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 17:09:51,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:51,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 17:09:51,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-08 17:09:51,061 INFO L87 Difference]: Start difference. First operand 15114 states and 52304 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:51,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:51,203 INFO L93 Difference]: Finished difference Result 15962 states and 54455 transitions. [2021-10-08 17:09:51,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 17:09:51,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:09:51,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:51,245 INFO L225 Difference]: With dead ends: 15962 [2021-10-08 17:09:51,245 INFO L226 Difference]: Without dead ends: 15082 [2021-10-08 17:09:51,245 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.2ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-08 17:09:51,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15082 states. [2021-10-08 17:09:51,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15082 to 15082. [2021-10-08 17:09:51,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15082 states, 15081 states have (on average 3.4416815861017174) internal successors, (51904), 15081 states have internal predecessors, (51904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:51,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15082 states to 15082 states and 51904 transitions. [2021-10-08 17:09:51,803 INFO L78 Accepts]: Start accepts. Automaton has 15082 states and 51904 transitions. Word has length 53 [2021-10-08 17:09:51,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:51,803 INFO L470 AbstractCegarLoop]: Abstraction has 15082 states and 51904 transitions. [2021-10-08 17:09:51,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:51,804 INFO L276 IsEmpty]: Start isEmpty. Operand 15082 states and 51904 transitions. [2021-10-08 17:09:51,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:09:51,837 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:51,837 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:09:51,852 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-10-08 17:09:52,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:52,051 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:52,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:52,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1418880206, now seen corresponding path program 8 times [2021-10-08 17:09:52,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:52,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024094698] [2021-10-08 17:09:52,053 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:09:52,053 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:52,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:52,056 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:52,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-08 17:09:52,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:09:52,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:09:52,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-08 17:09:52,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:52,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:52,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:53,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:53,462 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:53,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024094698] [2021-10-08 17:09:53,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024094698] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:53,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:53,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-10-08 17:09:53,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96004549] [2021-10-08 17:09:53,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-08 17:09:53,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:53,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-08 17:09:53,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-10-08 17:09:53,464 INFO L87 Difference]: Start difference. First operand 15082 states and 51904 transitions. Second operand has 15 states, 15 states have (on average 6.0) internal successors, (90), 14 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:54,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:54,791 INFO L93 Difference]: Finished difference Result 18440 states and 62441 transitions. [2021-10-08 17:09:54,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 17:09:54,792 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 14 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:09:54,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:54,850 INFO L225 Difference]: With dead ends: 18440 [2021-10-08 17:09:54,850 INFO L226 Difference]: Without dead ends: 18040 [2021-10-08 17:09:54,851 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 384.0ms TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2021-10-08 17:09:54,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18040 states. [2021-10-08 17:09:55,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18040 to 15200. [2021-10-08 17:09:55,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15200 states, 15199 states have (on average 3.4383183104151587) internal successors, (52259), 15199 states have internal predecessors, (52259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:55,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15200 states to 15200 states and 52259 transitions. [2021-10-08 17:09:55,240 INFO L78 Accepts]: Start accepts. Automaton has 15200 states and 52259 transitions. Word has length 53 [2021-10-08 17:09:55,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:55,241 INFO L470 AbstractCegarLoop]: Abstraction has 15200 states and 52259 transitions. [2021-10-08 17:09:55,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 14 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:55,241 INFO L276 IsEmpty]: Start isEmpty. Operand 15200 states and 52259 transitions. [2021-10-08 17:09:55,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:09:55,273 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:55,273 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:09:55,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-08 17:09:55,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:55,487 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:55,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:55,488 INFO L82 PathProgramCache]: Analyzing trace with hash 2023756884, now seen corresponding path program 9 times [2021-10-08 17:09:55,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:55,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362635409] [2021-10-08 17:09:55,651 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:09:55,651 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:55,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:55,652 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:55,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-08 17:09:55,941 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:09:55,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:09:55,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-08 17:09:55,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:09:56,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:56,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:57,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:57,351 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:57,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362635409] [2021-10-08 17:09:57,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362635409] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:57,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:57,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-08 17:09:57,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361189240] [2021-10-08 17:09:57,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-08 17:09:57,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:57,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-08 17:09:57,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-08 17:09:57,353 INFO L87 Difference]: Start difference. First operand 15200 states and 52259 transitions. Second operand has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:09:59,073 INFO L93 Difference]: Finished difference Result 19250 states and 64932 transitions. [2021-10-08 17:09:59,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 17:09:59,074 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:09:59,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:09:59,127 INFO L225 Difference]: With dead ends: 19250 [2021-10-08 17:09:59,128 INFO L226 Difference]: Without dead ends: 18848 [2021-10-08 17:09:59,128 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 755.7ms TimeCoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2021-10-08 17:09:59,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18848 states. [2021-10-08 17:09:59,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18848 to 15314. [2021-10-08 17:09:59,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15314 states, 15313 states have (on average 3.436687781623457) internal successors, (52626), 15313 states have internal predecessors, (52626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:59,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15314 states to 15314 states and 52626 transitions. [2021-10-08 17:09:59,571 INFO L78 Accepts]: Start accepts. Automaton has 15314 states and 52626 transitions. Word has length 53 [2021-10-08 17:09:59,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:09:59,572 INFO L470 AbstractCegarLoop]: Abstraction has 15314 states and 52626 transitions. [2021-10-08 17:09:59,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:09:59,572 INFO L276 IsEmpty]: Start isEmpty. Operand 15314 states and 52626 transitions. [2021-10-08 17:09:59,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:09:59,600 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:09:59,600 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:09:59,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-10-08 17:09:59,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:09:59,801 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:09:59,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:09:59,803 INFO L82 PathProgramCache]: Analyzing trace with hash -391485038, now seen corresponding path program 10 times [2021-10-08 17:09:59,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:09:59,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44155960] [2021-10-08 17:09:59,804 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:09:59,804 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:09:59,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:09:59,805 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:09:59,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-08 17:10:00,096 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:10:00,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:10:00,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-08 17:10:00,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:00,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:00,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:01,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:01,272 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:01,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44155960] [2021-10-08 17:10:01,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44155960] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:01,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:01,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-08 17:10:01,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705152588] [2021-10-08 17:10:01,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 17:10:01,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:01,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 17:10:01,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-10-08 17:10:01,275 INFO L87 Difference]: Start difference. First operand 15314 states and 52626 transitions. Second operand has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:02,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:02,839 INFO L93 Difference]: Finished difference Result 20050 states and 67796 transitions. [2021-10-08 17:10:02,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 17:10:02,841 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:02,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:02,896 INFO L225 Difference]: With dead ends: 20050 [2021-10-08 17:10:02,897 INFO L226 Difference]: Without dead ends: 19646 [2021-10-08 17:10:02,897 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 575.7ms TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2021-10-08 17:10:02,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19646 states. [2021-10-08 17:10:03,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19646 to 15282. [2021-10-08 17:10:03,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15282 states, 15281 states have (on average 3.436816962240691) internal successors, (52518), 15281 states have internal predecessors, (52518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15282 states to 15282 states and 52518 transitions. [2021-10-08 17:10:03,490 INFO L78 Accepts]: Start accepts. Automaton has 15282 states and 52518 transitions. Word has length 53 [2021-10-08 17:10:03,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:03,490 INFO L470 AbstractCegarLoop]: Abstraction has 15282 states and 52518 transitions. [2021-10-08 17:10:03,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:03,490 INFO L276 IsEmpty]: Start isEmpty. Operand 15282 states and 52518 transitions. [2021-10-08 17:10:03,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:03,516 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:03,517 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:03,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-08 17:10:03,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:03,718 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:03,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:03,719 INFO L82 PathProgramCache]: Analyzing trace with hash -484582578, now seen corresponding path program 11 times [2021-10-08 17:10:03,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:03,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324224545] [2021-10-08 17:10:03,720 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:10:03,720 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:03,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:03,722 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:03,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-08 17:10:04,027 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:10:04,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:10:04,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-08 17:10:04,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:04,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:04,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:04,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:04,550 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:04,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324224545] [2021-10-08 17:10:04,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324224545] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:04,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:04,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-08 17:10:04,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141379610] [2021-10-08 17:10:04,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-08 17:10:04,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:04,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-08 17:10:04,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-08 17:10:04,552 INFO L87 Difference]: Start difference. First operand 15282 states and 52518 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:05,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:05,815 INFO L93 Difference]: Finished difference Result 19544 states and 66568 transitions. [2021-10-08 17:10:05,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 17:10:05,816 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:05,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:05,882 INFO L225 Difference]: With dead ends: 19544 [2021-10-08 17:10:05,882 INFO L226 Difference]: Without dead ends: 19544 [2021-10-08 17:10:05,883 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 321.8ms TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2021-10-08 17:10:05,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19544 states. [2021-10-08 17:10:06,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19544 to 16238. [2021-10-08 17:10:06,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16238 states, 16237 states have (on average 3.4070333189628625) internal successors, (55320), 16237 states have internal predecessors, (55320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:06,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16238 states to 16238 states and 55320 transitions. [2021-10-08 17:10:06,459 INFO L78 Accepts]: Start accepts. Automaton has 16238 states and 55320 transitions. Word has length 53 [2021-10-08 17:10:06,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:06,459 INFO L470 AbstractCegarLoop]: Abstraction has 16238 states and 55320 transitions. [2021-10-08 17:10:06,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:06,460 INFO L276 IsEmpty]: Start isEmpty. Operand 16238 states and 55320 transitions. [2021-10-08 17:10:06,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:06,496 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:06,496 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:06,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-08 17:10:06,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:06,706 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:06,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:06,707 INFO L82 PathProgramCache]: Analyzing trace with hash 740466980, now seen corresponding path program 12 times [2021-10-08 17:10:06,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:06,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703548768] [2021-10-08 17:10:06,708 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:10:06,708 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:06,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:06,709 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:06,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-08 17:10:07,015 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:10:07,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:10:07,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-08 17:10:07,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:07,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:07,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:08,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:08,283 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:08,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703548768] [2021-10-08 17:10:08,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703548768] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:08,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:08,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-08 17:10:08,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677877870] [2021-10-08 17:10:08,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-08 17:10:08,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:08,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-08 17:10:08,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-08 17:10:08,285 INFO L87 Difference]: Start difference. First operand 16238 states and 55320 transitions. Second operand has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:10,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:10,591 INFO L93 Difference]: Finished difference Result 21280 states and 71463 transitions. [2021-10-08 17:10:10,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 17:10:10,592 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:10,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:10,649 INFO L225 Difference]: With dead ends: 21280 [2021-10-08 17:10:10,649 INFO L226 Difference]: Without dead ends: 20866 [2021-10-08 17:10:10,650 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 947.1ms TimeCoverageRelationStatistics Valid=143, Invalid=849, Unknown=0, NotChecked=0, Total=992 [2021-10-08 17:10:10,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20866 states. [2021-10-08 17:10:11,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20866 to 16512. [2021-10-08 17:10:11,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16512 states, 16511 states have (on average 3.403004057900793) internal successors, (56187), 16511 states have internal predecessors, (56187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:11,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16512 states to 16512 states and 56187 transitions. [2021-10-08 17:10:11,222 INFO L78 Accepts]: Start accepts. Automaton has 16512 states and 56187 transitions. Word has length 53 [2021-10-08 17:10:11,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:11,222 INFO L470 AbstractCegarLoop]: Abstraction has 16512 states and 56187 transitions. [2021-10-08 17:10:11,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:11,222 INFO L276 IsEmpty]: Start isEmpty. Operand 16512 states and 56187 transitions. [2021-10-08 17:10:11,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:11,250 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:11,250 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:11,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-08 17:10:11,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:11,451 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:11,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:11,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1674774942, now seen corresponding path program 13 times [2021-10-08 17:10:11,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:11,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701575454] [2021-10-08 17:10:11,454 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:10:11,454 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:11,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:11,455 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:11,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-08 17:10:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:10:11,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-08 17:10:11,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:12,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:12,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:12,984 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:12,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701575454] [2021-10-08 17:10:12,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701575454] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:12,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:12,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-08 17:10:12,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611320667] [2021-10-08 17:10:12,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 17:10:12,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:12,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 17:10:12,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-10-08 17:10:12,986 INFO L87 Difference]: Start difference. First operand 16512 states and 56187 transitions. Second operand has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:16,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:16,286 INFO L93 Difference]: Finished difference Result 28496 states and 94985 transitions. [2021-10-08 17:10:16,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-08 17:10:16,287 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:16,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:16,359 INFO L225 Difference]: With dead ends: 28496 [2021-10-08 17:10:16,359 INFO L226 Difference]: Without dead ends: 27624 [2021-10-08 17:10:16,359 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1260.3ms TimeCoverageRelationStatistics Valid=145, Invalid=847, Unknown=0, NotChecked=0, Total=992 [2021-10-08 17:10:16,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27624 states. [2021-10-08 17:10:16,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27624 to 17358. [2021-10-08 17:10:16,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17358 states, 17357 states have (on average 3.3606037909777036) internal successors, (58330), 17357 states have internal predecessors, (58330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:17,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17358 states to 17358 states and 58330 transitions. [2021-10-08 17:10:17,007 INFO L78 Accepts]: Start accepts. Automaton has 17358 states and 58330 transitions. Word has length 53 [2021-10-08 17:10:17,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:17,007 INFO L470 AbstractCegarLoop]: Abstraction has 17358 states and 58330 transitions. [2021-10-08 17:10:17,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:17,007 INFO L276 IsEmpty]: Start isEmpty. Operand 17358 states and 58330 transitions. [2021-10-08 17:10:17,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:17,036 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:17,036 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:17,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-10-08 17:10:17,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:17,237 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:17,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:17,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1883415408, now seen corresponding path program 14 times [2021-10-08 17:10:17,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:17,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254540667] [2021-10-08 17:10:17,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:10:17,239 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:17,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:17,242 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:17,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-08 17:10:17,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:10:17,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:10:17,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-08 17:10:17,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:17,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:18,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:18,257 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:18,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254540667] [2021-10-08 17:10:18,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254540667] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:18,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:18,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-08 17:10:18,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420317357] [2021-10-08 17:10:18,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-08 17:10:18,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:18,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-08 17:10:18,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-10-08 17:10:18,260 INFO L87 Difference]: Start difference. First operand 17358 states and 58330 transitions. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:19,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:19,462 INFO L93 Difference]: Finished difference Result 20094 states and 67348 transitions. [2021-10-08 17:10:19,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 17:10:19,463 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:19,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:19,513 INFO L225 Difference]: With dead ends: 20094 [2021-10-08 17:10:19,514 INFO L226 Difference]: Without dead ends: 20094 [2021-10-08 17:10:19,514 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 345.0ms TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:10:19,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20094 states. [2021-10-08 17:10:20,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20094 to 17924. [2021-10-08 17:10:20,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17924 states, 17923 states have (on average 3.3621045583886624) internal successors, (60259), 17923 states have internal predecessors, (60259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:20,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17924 states to 17924 states and 60259 transitions. [2021-10-08 17:10:20,075 INFO L78 Accepts]: Start accepts. Automaton has 17924 states and 60259 transitions. Word has length 53 [2021-10-08 17:10:20,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:20,076 INFO L470 AbstractCegarLoop]: Abstraction has 17924 states and 60259 transitions. [2021-10-08 17:10:20,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:20,076 INFO L276 IsEmpty]: Start isEmpty. Operand 17924 states and 60259 transitions. [2021-10-08 17:10:20,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:20,109 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:20,109 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:20,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-08 17:10:20,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:20,310 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:20,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:20,310 INFO L82 PathProgramCache]: Analyzing trace with hash -885685516, now seen corresponding path program 15 times [2021-10-08 17:10:20,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:20,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308094479] [2021-10-08 17:10:20,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:10:20,312 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:20,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:20,313 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:20,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-08 17:10:20,767 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:10:20,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:10:20,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-08 17:10:20,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:20,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:20,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:21,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:21,110 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:21,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308094479] [2021-10-08 17:10:21,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308094479] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:21,111 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:21,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-08 17:10:21,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052690718] [2021-10-08 17:10:21,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 17:10:21,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:21,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 17:10:21,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-08 17:10:21,113 INFO L87 Difference]: Start difference. First operand 17924 states and 60259 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:21,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:21,602 INFO L93 Difference]: Finished difference Result 19679 states and 64879 transitions. [2021-10-08 17:10:21,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 17:10:21,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:21,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:21,664 INFO L225 Difference]: With dead ends: 19679 [2021-10-08 17:10:21,664 INFO L226 Difference]: Without dead ends: 19466 [2021-10-08 17:10:21,665 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 103.8ms TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-08 17:10:21,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19466 states. [2021-10-08 17:10:21,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19466 to 18012. [2021-10-08 17:10:21,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18012 states, 18011 states have (on average 3.356115707067903) internal successors, (60447), 18011 states have internal predecessors, (60447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:22,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18012 states to 18012 states and 60447 transitions. [2021-10-08 17:10:22,003 INFO L78 Accepts]: Start accepts. Automaton has 18012 states and 60447 transitions. Word has length 53 [2021-10-08 17:10:22,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:22,004 INFO L470 AbstractCegarLoop]: Abstraction has 18012 states and 60447 transitions. [2021-10-08 17:10:22,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:22,004 INFO L276 IsEmpty]: Start isEmpty. Operand 18012 states and 60447 transitions. [2021-10-08 17:10:22,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:22,036 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:22,036 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:22,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-08 17:10:22,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:22,237 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:22,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:22,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1214575236, now seen corresponding path program 16 times [2021-10-08 17:10:22,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:22,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481174037] [2021-10-08 17:10:22,240 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:10:22,240 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:22,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:22,242 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:22,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-08 17:10:22,666 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:10:22,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:10:22,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-08 17:10:22,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:23,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:23,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:24,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:24,060 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:24,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481174037] [2021-10-08 17:10:24,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481174037] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:24,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:24,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-08 17:10:24,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957646065] [2021-10-08 17:10:24,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 17:10:24,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:24,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 17:10:24,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-10-08 17:10:24,062 INFO L87 Difference]: Start difference. First operand 18012 states and 60447 transitions. Second operand has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:25,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:25,499 INFO L93 Difference]: Finished difference Result 23460 states and 77959 transitions. [2021-10-08 17:10:25,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 17:10:25,500 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:25,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:25,558 INFO L225 Difference]: With dead ends: 23460 [2021-10-08 17:10:25,558 INFO L226 Difference]: Without dead ends: 23038 [2021-10-08 17:10:25,559 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 576.6ms TimeCoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:10:25,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23038 states. [2021-10-08 17:10:26,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23038 to 18024. [2021-10-08 17:10:26,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18024 states, 18023 states have (on average 3.3559895688842034) internal successors, (60485), 18023 states have internal predecessors, (60485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:26,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18024 states to 18024 states and 60485 transitions. [2021-10-08 17:10:26,116 INFO L78 Accepts]: Start accepts. Automaton has 18024 states and 60485 transitions. Word has length 53 [2021-10-08 17:10:26,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:26,117 INFO L470 AbstractCegarLoop]: Abstraction has 18024 states and 60485 transitions. [2021-10-08 17:10:26,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:26,117 INFO L276 IsEmpty]: Start isEmpty. Operand 18024 states and 60485 transitions. [2021-10-08 17:10:26,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:26,147 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:26,147 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:26,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-08 17:10:26,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:26,355 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:26,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:26,356 INFO L82 PathProgramCache]: Analyzing trace with hash -220837796, now seen corresponding path program 17 times [2021-10-08 17:10:26,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:26,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181124627] [2021-10-08 17:10:26,358 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:10:26,358 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:26,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:26,359 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:26,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-08 17:10:26,785 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:10:26,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:10:26,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-08 17:10:26,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:27,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:27,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:28,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:28,127 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:28,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181124627] [2021-10-08 17:10:28,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181124627] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:28,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:28,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-08 17:10:28,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872355468] [2021-10-08 17:10:28,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-08 17:10:28,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:28,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-08 17:10:28,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-10-08 17:10:28,129 INFO L87 Difference]: Start difference. First operand 18024 states and 60485 transitions. Second operand has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:31,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:31,278 INFO L93 Difference]: Finished difference Result 24146 states and 79574 transitions. [2021-10-08 17:10:31,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-08 17:10:31,279 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:31,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:31,344 INFO L225 Difference]: With dead ends: 24146 [2021-10-08 17:10:31,344 INFO L226 Difference]: Without dead ends: 23724 [2021-10-08 17:10:31,344 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1372.1ms TimeCoverageRelationStatistics Valid=153, Invalid=969, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 17:10:31,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23724 states. [2021-10-08 17:10:31,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23724 to 17712. [2021-10-08 17:10:31,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17712 states, 17711 states have (on average 3.3501778555699846) internal successors, (59335), 17711 states have internal predecessors, (59335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:31,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17712 states to 17712 states and 59335 transitions. [2021-10-08 17:10:31,873 INFO L78 Accepts]: Start accepts. Automaton has 17712 states and 59335 transitions. Word has length 53 [2021-10-08 17:10:31,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:31,873 INFO L470 AbstractCegarLoop]: Abstraction has 17712 states and 59335 transitions. [2021-10-08 17:10:31,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:31,873 INFO L276 IsEmpty]: Start isEmpty. Operand 17712 states and 59335 transitions. [2021-10-08 17:10:31,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:31,904 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:31,904 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:31,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-08 17:10:32,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:32,105 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:32,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:32,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1873672664, now seen corresponding path program 18 times [2021-10-08 17:10:32,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:32,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903542675] [2021-10-08 17:10:32,108 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:10:32,108 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:32,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:32,109 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:32,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-08 17:10:32,574 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:10:32,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:10:32,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-08 17:10:32,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:32,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:32,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:33,026 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:33,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903542675] [2021-10-08 17:10:33,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903542675] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:33,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:33,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-08 17:10:33,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702683011] [2021-10-08 17:10:33,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-08 17:10:33,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:33,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-08 17:10:33,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-08 17:10:33,028 INFO L87 Difference]: Start difference. First operand 17712 states and 59335 transitions. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:33,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:33,899 INFO L93 Difference]: Finished difference Result 21456 states and 70334 transitions. [2021-10-08 17:10:33,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 17:10:33,899 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:33,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:34,117 INFO L225 Difference]: With dead ends: 21456 [2021-10-08 17:10:34,117 INFO L226 Difference]: Without dead ends: 21432 [2021-10-08 17:10:34,117 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 210.7ms TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2021-10-08 17:10:34,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21432 states. [2021-10-08 17:10:34,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21432 to 16676. [2021-10-08 17:10:34,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16676 states, 16675 states have (on average 3.3054872563718143) internal successors, (55119), 16675 states have internal predecessors, (55119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:34,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16676 states to 16676 states and 55119 transitions. [2021-10-08 17:10:34,461 INFO L78 Accepts]: Start accepts. Automaton has 16676 states and 55119 transitions. Word has length 53 [2021-10-08 17:10:34,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:34,462 INFO L470 AbstractCegarLoop]: Abstraction has 16676 states and 55119 transitions. [2021-10-08 17:10:34,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:34,462 INFO L276 IsEmpty]: Start isEmpty. Operand 16676 states and 55119 transitions. [2021-10-08 17:10:34,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:34,491 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:34,492 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:34,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-08 17:10:34,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:34,693 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:34,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:34,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1753173314, now seen corresponding path program 19 times [2021-10-08 17:10:34,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:34,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365816267] [2021-10-08 17:10:34,695 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:10:34,695 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:34,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:34,696 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:34,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-08 17:10:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:10:35,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 17:10:35,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:35,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:35,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:35,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:35,391 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:35,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365816267] [2021-10-08 17:10:35,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365816267] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:35,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:35,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-08 17:10:35,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119486793] [2021-10-08 17:10:35,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 17:10:35,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:35,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 17:10:35,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 17:10:35,393 INFO L87 Difference]: Start difference. First operand 16676 states and 55119 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:35,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:35,693 INFO L93 Difference]: Finished difference Result 16566 states and 54255 transitions. [2021-10-08 17:10:35,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:10:35,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:35,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:35,750 INFO L225 Difference]: With dead ends: 16566 [2021-10-08 17:10:35,750 INFO L226 Difference]: Without dead ends: 16566 [2021-10-08 17:10:35,750 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 17:10:35,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16566 states. [2021-10-08 17:10:36,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16566 to 16566. [2021-10-08 17:10:36,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16566 states, 16565 states have (on average 3.275279203139149) internal successors, (54255), 16565 states have internal predecessors, (54255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:36,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16566 states to 16566 states and 54255 transitions. [2021-10-08 17:10:36,189 INFO L78 Accepts]: Start accepts. Automaton has 16566 states and 54255 transitions. Word has length 53 [2021-10-08 17:10:36,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:36,190 INFO L470 AbstractCegarLoop]: Abstraction has 16566 states and 54255 transitions. [2021-10-08 17:10:36,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:36,190 INFO L276 IsEmpty]: Start isEmpty. Operand 16566 states and 54255 transitions. [2021-10-08 17:10:36,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:36,217 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:36,218 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:36,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-08 17:10:36,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:36,419 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:36,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:36,420 INFO L82 PathProgramCache]: Analyzing trace with hash 556166018, now seen corresponding path program 20 times [2021-10-08 17:10:36,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:36,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574553365] [2021-10-08 17:10:36,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:10:36,421 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:36,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:36,423 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:36,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-08 17:10:37,021 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:10:37,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:10:37,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-08 17:10:37,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:37,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:37,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:37,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:37,972 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:37,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1574553365] [2021-10-08 17:10:37,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1574553365] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:37,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:37,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-10-08 17:10:37,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894933269] [2021-10-08 17:10:37,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-08 17:10:37,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:37,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-08 17:10:37,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-10-08 17:10:37,975 INFO L87 Difference]: Start difference. First operand 16566 states and 54255 transitions. Second operand has 15 states, 15 states have (on average 5.6) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:40,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:40,929 INFO L93 Difference]: Finished difference Result 25000 states and 79523 transitions. [2021-10-08 17:10:40,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-08 17:10:40,930 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:40,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:40,987 INFO L225 Difference]: With dead ends: 25000 [2021-10-08 17:10:40,987 INFO L226 Difference]: Without dead ends: 24152 [2021-10-08 17:10:40,988 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1246.4ms TimeCoverageRelationStatistics Valid=138, Invalid=732, Unknown=0, NotChecked=0, Total=870 [2021-10-08 17:10:41,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24152 states. [2021-10-08 17:10:41,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24152 to 17720. [2021-10-08 17:10:41,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17720 states, 17719 states have (on average 3.2237710931768158) internal successors, (57122), 17719 states have internal predecessors, (57122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:41,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17720 states to 17720 states and 57122 transitions. [2021-10-08 17:10:41,489 INFO L78 Accepts]: Start accepts. Automaton has 17720 states and 57122 transitions. Word has length 53 [2021-10-08 17:10:41,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:41,489 INFO L470 AbstractCegarLoop]: Abstraction has 17720 states and 57122 transitions. [2021-10-08 17:10:41,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:41,489 INFO L276 IsEmpty]: Start isEmpty. Operand 17720 states and 57122 transitions. [2021-10-08 17:10:41,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:41,518 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:41,519 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:41,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-08 17:10:41,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:41,720 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:41,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:41,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1748302960, now seen corresponding path program 21 times [2021-10-08 17:10:41,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:41,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583189381] [2021-10-08 17:10:41,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:10:41,722 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:41,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:41,724 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:41,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-08 17:10:42,307 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:10:42,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:10:42,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-08 17:10:42,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:42,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:42,627 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:42,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583189381] [2021-10-08 17:10:42,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583189381] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:42,627 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:42,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-08 17:10:42,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763395367] [2021-10-08 17:10:42,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 17:10:42,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:42,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 17:10:42,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-08 17:10:42,629 INFO L87 Difference]: Start difference. First operand 17720 states and 57122 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:43,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:43,011 INFO L93 Difference]: Finished difference Result 19399 states and 61468 transitions. [2021-10-08 17:10:43,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 17:10:43,012 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:43,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:43,056 INFO L225 Difference]: With dead ends: 19399 [2021-10-08 17:10:43,056 INFO L226 Difference]: Without dead ends: 19010 [2021-10-08 17:10:43,056 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 98.4ms TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-08 17:10:43,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19010 states. [2021-10-08 17:10:43,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19010 to 17872. [2021-10-08 17:10:43,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17872 states, 17871 states have (on average 3.2140898662637793) internal successors, (57439), 17871 states have internal predecessors, (57439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:43,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17872 states to 17872 states and 57439 transitions. [2021-10-08 17:10:43,391 INFO L78 Accepts]: Start accepts. Automaton has 17872 states and 57439 transitions. Word has length 53 [2021-10-08 17:10:43,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:43,392 INFO L470 AbstractCegarLoop]: Abstraction has 17872 states and 57439 transitions. [2021-10-08 17:10:43,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:43,392 INFO L276 IsEmpty]: Start isEmpty. Operand 17872 states and 57439 transitions. [2021-10-08 17:10:43,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:43,422 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:43,423 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:43,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-08 17:10:43,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:43,628 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:43,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:43,628 INFO L82 PathProgramCache]: Analyzing trace with hash -264250466, now seen corresponding path program 22 times [2021-10-08 17:10:43,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:43,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763781728] [2021-10-08 17:10:43,630 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:10:43,630 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:43,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:43,631 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:43,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-08 17:10:44,268 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:10:44,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:10:44,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-08 17:10:44,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:44,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:44,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:45,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:45,318 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:45,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763781728] [2021-10-08 17:10:45,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763781728] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:45,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:45,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-08 17:10:45,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098876188] [2021-10-08 17:10:45,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-08 17:10:45,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:45,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-08 17:10:45,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-08 17:10:45,320 INFO L87 Difference]: Start difference. First operand 17872 states and 57439 transitions. Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:46,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:46,527 INFO L93 Difference]: Finished difference Result 23676 states and 75207 transitions. [2021-10-08 17:10:46,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 17:10:46,528 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:46,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:46,582 INFO L225 Difference]: With dead ends: 23676 [2021-10-08 17:10:46,582 INFO L226 Difference]: Without dead ends: 23020 [2021-10-08 17:10:46,582 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 441.7ms TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:10:46,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23020 states. [2021-10-08 17:10:47,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23020 to 19920. [2021-10-08 17:10:47,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19920 states, 19919 states have (on average 3.1910738490888098) internal successors, (63563), 19919 states have internal predecessors, (63563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:47,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19920 states to 19920 states and 63563 transitions. [2021-10-08 17:10:47,084 INFO L78 Accepts]: Start accepts. Automaton has 19920 states and 63563 transitions. Word has length 53 [2021-10-08 17:10:47,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:47,084 INFO L470 AbstractCegarLoop]: Abstraction has 19920 states and 63563 transitions. [2021-10-08 17:10:47,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:47,085 INFO L276 IsEmpty]: Start isEmpty. Operand 19920 states and 63563 transitions. [2021-10-08 17:10:47,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:47,117 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:47,117 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:47,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2021-10-08 17:10:47,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:47,325 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:47,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:47,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1551490818, now seen corresponding path program 23 times [2021-10-08 17:10:47,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:47,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574698021] [2021-10-08 17:10:47,327 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:10:47,327 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:47,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:47,328 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:47,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-08 17:10:47,940 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:10:47,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:10:47,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-08 17:10:47,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:48,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:48,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:49,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:49,177 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:49,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574698021] [2021-10-08 17:10:49,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574698021] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:49,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:49,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-08 17:10:49,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388944582] [2021-10-08 17:10:49,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-08 17:10:49,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:49,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-08 17:10:49,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-08 17:10:49,179 INFO L87 Difference]: Start difference. First operand 19920 states and 63563 transitions. Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:50,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:50,287 INFO L93 Difference]: Finished difference Result 27176 states and 85967 transitions. [2021-10-08 17:10:50,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 17:10:50,288 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:50,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:50,366 INFO L225 Difference]: With dead ends: 27176 [2021-10-08 17:10:50,366 INFO L226 Difference]: Without dead ends: 26522 [2021-10-08 17:10:50,366 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 380.0ms TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2021-10-08 17:10:50,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26522 states. [2021-10-08 17:10:50,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26522 to 20004. [2021-10-08 17:10:50,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20004 states, 20003 states have (on average 3.1903714442833575) internal successors, (63817), 20003 states have internal predecessors, (63817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:51,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20004 states to 20004 states and 63817 transitions. [2021-10-08 17:10:51,009 INFO L78 Accepts]: Start accepts. Automaton has 20004 states and 63817 transitions. Word has length 53 [2021-10-08 17:10:51,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:51,009 INFO L470 AbstractCegarLoop]: Abstraction has 20004 states and 63817 transitions. [2021-10-08 17:10:51,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:51,010 INFO L276 IsEmpty]: Start isEmpty. Operand 20004 states and 63817 transitions. [2021-10-08 17:10:51,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:51,045 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:51,046 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:51,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-10-08 17:10:51,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:51,255 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:51,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:51,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1312444068, now seen corresponding path program 24 times [2021-10-08 17:10:51,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:51,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521218547] [2021-10-08 17:10:51,257 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:10:51,257 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:51,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:51,258 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:51,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-10-08 17:10:51,900 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:10:51,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:10:51,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 17:10:51,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:52,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:52,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:52,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:52,121 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:52,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521218547] [2021-10-08 17:10:52,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521218547] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:52,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:52,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-08 17:10:52,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892136179] [2021-10-08 17:10:52,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 17:10:52,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:52,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 17:10:52,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-08 17:10:52,123 INFO L87 Difference]: Start difference. First operand 20004 states and 63817 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:52,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:52,266 INFO L93 Difference]: Finished difference Result 20974 states and 65602 transitions. [2021-10-08 17:10:52,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 17:10:52,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:52,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:52,339 INFO L225 Difference]: With dead ends: 20974 [2021-10-08 17:10:52,339 INFO L226 Difference]: Without dead ends: 19314 [2021-10-08 17:10:52,342 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.9ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-08 17:10:52,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19314 states. [2021-10-08 17:10:52,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19314 to 19278. [2021-10-08 17:10:52,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19278 states, 19277 states have (on average 3.162265912745759) internal successors, (60959), 19277 states have internal predecessors, (60959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:52,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19278 states to 19278 states and 60959 transitions. [2021-10-08 17:10:52,905 INFO L78 Accepts]: Start accepts. Automaton has 19278 states and 60959 transitions. Word has length 53 [2021-10-08 17:10:52,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:52,906 INFO L470 AbstractCegarLoop]: Abstraction has 19278 states and 60959 transitions. [2021-10-08 17:10:52,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:52,906 INFO L276 IsEmpty]: Start isEmpty. Operand 19278 states and 60959 transitions. [2021-10-08 17:10:52,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:52,949 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:52,949 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:52,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-10-08 17:10:53,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:53,156 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:53,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:53,157 INFO L82 PathProgramCache]: Analyzing trace with hash 877679960, now seen corresponding path program 25 times [2021-10-08 17:10:53,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:53,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131829257] [2021-10-08 17:10:53,158 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:10:53,158 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:53,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:53,160 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:53,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-08 17:10:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:10:53,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-08 17:10:53,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:54,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:54,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:55,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:55,043 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:55,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131829257] [2021-10-08 17:10:55,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131829257] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:55,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:55,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-10-08 17:10:55,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410809496] [2021-10-08 17:10:55,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-08 17:10:55,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:55,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-08 17:10:55,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-10-08 17:10:55,045 INFO L87 Difference]: Start difference. First operand 19278 states and 60959 transitions. Second operand has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 14 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:56,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:10:56,877 INFO L93 Difference]: Finished difference Result 23284 states and 72631 transitions. [2021-10-08 17:10:56,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 17:10:56,877 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 14 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:10:56,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:10:56,936 INFO L225 Difference]: With dead ends: 23284 [2021-10-08 17:10:56,937 INFO L226 Difference]: Without dead ends: 22736 [2021-10-08 17:10:56,937 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 614.0ms TimeCoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2021-10-08 17:10:56,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22736 states. [2021-10-08 17:10:57,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22736 to 19324. [2021-10-08 17:10:57,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19324 states, 19323 states have (on average 3.160896341147855) internal successors, (61078), 19323 states have internal predecessors, (61078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:57,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19324 states to 19324 states and 61078 transitions. [2021-10-08 17:10:57,505 INFO L78 Accepts]: Start accepts. Automaton has 19324 states and 61078 transitions. Word has length 53 [2021-10-08 17:10:57,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:10:57,505 INFO L470 AbstractCegarLoop]: Abstraction has 19324 states and 61078 transitions. [2021-10-08 17:10:57,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 14 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:10:57,505 INFO L276 IsEmpty]: Start isEmpty. Operand 19324 states and 61078 transitions. [2021-10-08 17:10:57,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:10:57,539 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:10:57,539 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:10:57,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2021-10-08 17:10:57,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:10:57,745 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:10:57,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:10:57,746 INFO L82 PathProgramCache]: Analyzing trace with hash 591267090, now seen corresponding path program 26 times [2021-10-08 17:10:57,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:10:57,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608687655] [2021-10-08 17:10:57,747 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:10:57,747 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:10:57,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:10:57,748 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:10:57,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-08 17:10:58,397 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:10:58,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:10:58,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-08 17:10:58,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:10:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:58,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:10:59,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:10:59,543 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:10:59,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608687655] [2021-10-08 17:10:59,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608687655] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:10:59,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:10:59,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-08 17:10:59,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613517741] [2021-10-08 17:10:59,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 17:10:59,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:10:59,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 17:10:59,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-10-08 17:10:59,545 INFO L87 Difference]: Start difference. First operand 19324 states and 61078 transitions. Second operand has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:01,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:01,526 INFO L93 Difference]: Finished difference Result 24078 states and 74871 transitions. [2021-10-08 17:11:01,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 17:11:01,527 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:11:01,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:01,588 INFO L225 Difference]: With dead ends: 24078 [2021-10-08 17:11:01,588 INFO L226 Difference]: Without dead ends: 23518 [2021-10-08 17:11:01,589 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 727.4ms TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2021-10-08 17:11:01,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23518 states. [2021-10-08 17:11:02,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23518 to 19442. [2021-10-08 17:11:02,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19442 states, 19441 states have (on average 3.1590453165989403) internal successors, (61415), 19441 states have internal predecessors, (61415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:02,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19442 states to 19442 states and 61415 transitions. [2021-10-08 17:11:02,285 INFO L78 Accepts]: Start accepts. Automaton has 19442 states and 61415 transitions. Word has length 53 [2021-10-08 17:11:02,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:02,285 INFO L470 AbstractCegarLoop]: Abstraction has 19442 states and 61415 transitions. [2021-10-08 17:11:02,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:02,286 INFO L276 IsEmpty]: Start isEmpty. Operand 19442 states and 61415 transitions. [2021-10-08 17:11:02,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:11:02,322 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:02,322 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:02,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2021-10-08 17:11:02,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:02,523 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:02,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:02,524 INFO L82 PathProgramCache]: Analyzing trace with hash 436301370, now seen corresponding path program 27 times [2021-10-08 17:11:02,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:02,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103215141] [2021-10-08 17:11:02,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:11:02,525 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:02,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:02,526 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:02,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-10-08 17:11:03,206 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:11:03,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:11:03,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-08 17:11:03,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:03,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:03,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:04,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:04,367 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:04,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103215141] [2021-10-08 17:11:04,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103215141] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:04,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:04,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-08 17:11:04,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87373944] [2021-10-08 17:11:04,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 17:11:04,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:04,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 17:11:04,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-10-08 17:11:04,370 INFO L87 Difference]: Start difference. First operand 19442 states and 61415 transitions. Second operand has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:06,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:06,110 INFO L93 Difference]: Finished difference Result 23266 states and 72334 transitions. [2021-10-08 17:11:06,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 17:11:06,111 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:11:06,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:06,170 INFO L225 Difference]: With dead ends: 23266 [2021-10-08 17:11:06,170 INFO L226 Difference]: Without dead ends: 22712 [2021-10-08 17:11:06,170 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 654.7ms TimeCoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2021-10-08 17:11:06,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22712 states. [2021-10-08 17:11:06,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22712 to 19402. [2021-10-08 17:11:06,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19402 states, 19401 states have (on average 3.1596824905932683) internal successors, (61301), 19401 states have internal predecessors, (61301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:06,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19402 states to 19402 states and 61301 transitions. [2021-10-08 17:11:06,593 INFO L78 Accepts]: Start accepts. Automaton has 19402 states and 61301 transitions. Word has length 53 [2021-10-08 17:11:06,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:06,593 INFO L470 AbstractCegarLoop]: Abstraction has 19402 states and 61301 transitions. [2021-10-08 17:11:06,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:06,594 INFO L276 IsEmpty]: Start isEmpty. Operand 19402 states and 61301 transitions. [2021-10-08 17:11:06,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:11:06,630 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:06,630 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:06,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:06,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:06,831 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:06,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:06,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1614325546, now seen corresponding path program 28 times [2021-10-08 17:11:06,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:06,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386142888] [2021-10-08 17:11:06,834 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:11:06,834 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:06,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:06,835 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:06,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-10-08 17:11:07,737 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:11:07,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:11:07,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-08 17:11:07,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:07,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:07,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:07,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:07,962 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:07,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386142888] [2021-10-08 17:11:07,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386142888] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:07,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:07,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-08 17:11:07,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390809829] [2021-10-08 17:11:07,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 17:11:07,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:07,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 17:11:07,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-08 17:11:07,964 INFO L87 Difference]: Start difference. First operand 19402 states and 61301 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:08,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:08,105 INFO L93 Difference]: Finished difference Result 20388 states and 63556 transitions. [2021-10-08 17:11:08,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 17:11:08,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:11:08,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:08,152 INFO L225 Difference]: With dead ends: 20388 [2021-10-08 17:11:08,152 INFO L226 Difference]: Without dead ends: 19238 [2021-10-08 17:11:08,153 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-08 17:11:08,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19238 states. [2021-10-08 17:11:08,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19238 to 19190. [2021-10-08 17:11:08,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19190 states, 19189 states have (on average 3.1372661420605557) internal successors, (60201), 19189 states have internal predecessors, (60201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:08,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19190 states to 19190 states and 60201 transitions. [2021-10-08 17:11:08,792 INFO L78 Accepts]: Start accepts. Automaton has 19190 states and 60201 transitions. Word has length 53 [2021-10-08 17:11:08,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:08,792 INFO L470 AbstractCegarLoop]: Abstraction has 19190 states and 60201 transitions. [2021-10-08 17:11:08,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:08,792 INFO L276 IsEmpty]: Start isEmpty. Operand 19190 states and 60201 transitions. [2021-10-08 17:11:08,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:11:08,829 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:08,829 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:08,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:09,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:09,031 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:09,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:09,033 INFO L82 PathProgramCache]: Analyzing trace with hash 58061248, now seen corresponding path program 29 times [2021-10-08 17:11:09,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:09,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139098906] [2021-10-08 17:11:09,036 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:11:09,042 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:09,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:09,045 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:09,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-10-08 17:11:09,761 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:11:09,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:11:09,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-08 17:11:09,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:10,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:10,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:10,800 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:10,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139098906] [2021-10-08 17:11:10,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139098906] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:10,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:10,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-08 17:11:10,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076882185] [2021-10-08 17:11:10,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 17:11:10,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:10,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 17:11:10,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-10-08 17:11:10,802 INFO L87 Difference]: Start difference. First operand 19190 states and 60201 transitions. Second operand has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:12,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:12,044 INFO L93 Difference]: Finished difference Result 24052 states and 74217 transitions. [2021-10-08 17:11:12,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 17:11:12,045 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:11:12,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:12,282 INFO L225 Difference]: With dead ends: 24052 [2021-10-08 17:11:12,282 INFO L226 Difference]: Without dead ends: 23508 [2021-10-08 17:11:12,283 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 498.4ms TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:11:12,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23508 states. [2021-10-08 17:11:12,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23508 to 19314. [2021-10-08 17:11:12,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19314 states, 19313 states have (on average 3.1371097188422308) internal successors, (60587), 19313 states have internal predecessors, (60587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:12,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19314 states to 19314 states and 60587 transitions. [2021-10-08 17:11:12,689 INFO L78 Accepts]: Start accepts. Automaton has 19314 states and 60587 transitions. Word has length 53 [2021-10-08 17:11:12,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:12,689 INFO L470 AbstractCegarLoop]: Abstraction has 19314 states and 60587 transitions. [2021-10-08 17:11:12,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:12,690 INFO L276 IsEmpty]: Start isEmpty. Operand 19314 states and 60587 transitions. [2021-10-08 17:11:12,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:11:12,722 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:12,722 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:12,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:12,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:12,923 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:12,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:12,925 INFO L82 PathProgramCache]: Analyzing trace with hash -2102508258, now seen corresponding path program 30 times [2021-10-08 17:11:12,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:12,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87162559] [2021-10-08 17:11:12,926 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:11:12,926 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:12,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:12,927 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:12,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-10-08 17:11:13,819 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:11:13,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:11:13,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-08 17:11:13,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:14,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:14,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:14,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:14,284 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:14,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87162559] [2021-10-08 17:11:14,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87162559] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:14,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:14,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-08 17:11:14,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714217354] [2021-10-08 17:11:14,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-08 17:11:14,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:14,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-08 17:11:14,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-08 17:11:14,286 INFO L87 Difference]: Start difference. First operand 19314 states and 60587 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:15,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:15,023 INFO L93 Difference]: Finished difference Result 22042 states and 68640 transitions. [2021-10-08 17:11:15,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 17:11:15,024 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:11:15,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:15,085 INFO L225 Difference]: With dead ends: 22042 [2021-10-08 17:11:15,086 INFO L226 Difference]: Without dead ends: 22042 [2021-10-08 17:11:15,086 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 199.8ms TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-10-08 17:11:15,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22042 states. [2021-10-08 17:11:15,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22042 to 19556. [2021-10-08 17:11:15,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19556 states, 19555 states have (on average 3.136231142930197) internal successors, (61329), 19555 states have internal predecessors, (61329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:15,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19556 states to 19556 states and 61329 transitions. [2021-10-08 17:11:15,695 INFO L78 Accepts]: Start accepts. Automaton has 19556 states and 61329 transitions. Word has length 53 [2021-10-08 17:11:15,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:15,696 INFO L470 AbstractCegarLoop]: Abstraction has 19556 states and 61329 transitions. [2021-10-08 17:11:15,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:15,696 INFO L276 IsEmpty]: Start isEmpty. Operand 19556 states and 61329 transitions. [2021-10-08 17:11:15,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:11:15,731 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:15,731 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:15,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:15,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:15,932 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:15,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:15,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1958367834, now seen corresponding path program 31 times [2021-10-08 17:11:15,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:15,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845636909] [2021-10-08 17:11:15,934 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:11:15,935 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:15,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:15,936 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:15,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-10-08 17:11:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:11:16,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-08 17:11:16,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:16,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:16,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:17,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:17,237 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:17,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845636909] [2021-10-08 17:11:17,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845636909] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:17,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:17,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-08 17:11:17,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85461154] [2021-10-08 17:11:17,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-08 17:11:17,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:17,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-08 17:11:17,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-10-08 17:11:17,239 INFO L87 Difference]: Start difference. First operand 19556 states and 61329 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:18,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:18,041 INFO L93 Difference]: Finished difference Result 22090 states and 68533 transitions. [2021-10-08 17:11:18,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 17:11:18,042 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:11:18,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:18,091 INFO L225 Difference]: With dead ends: 22090 [2021-10-08 17:11:18,092 INFO L226 Difference]: Without dead ends: 22090 [2021-10-08 17:11:18,092 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 272.4ms TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2021-10-08 17:11:18,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22090 states. [2021-10-08 17:11:18,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22090 to 19208. [2021-10-08 17:11:18,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19208 states, 19207 states have (on average 3.1294840422762533) internal successors, (60108), 19207 states have internal predecessors, (60108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19208 states to 19208 states and 60108 transitions. [2021-10-08 17:11:18,643 INFO L78 Accepts]: Start accepts. Automaton has 19208 states and 60108 transitions. Word has length 53 [2021-10-08 17:11:18,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:18,644 INFO L470 AbstractCegarLoop]: Abstraction has 19208 states and 60108 transitions. [2021-10-08 17:11:18,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 19208 states and 60108 transitions. [2021-10-08 17:11:18,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:11:18,673 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:18,674 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:18,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:18,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:18,875 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:18,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:18,876 INFO L82 PathProgramCache]: Analyzing trace with hash 2034656612, now seen corresponding path program 32 times [2021-10-08 17:11:18,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:18,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448418564] [2021-10-08 17:11:18,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:11:18,877 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:18,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:18,878 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:18,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-10-08 17:11:19,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:11:19,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:11:19,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-08 17:11:19,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:20,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:20,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:20,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:20,961 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:20,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448418564] [2021-10-08 17:11:20,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448418564] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:20,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:20,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-08 17:11:20,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098331961] [2021-10-08 17:11:20,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 17:11:20,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:20,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 17:11:20,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-10-08 17:11:20,963 INFO L87 Difference]: Start difference. First operand 19208 states and 60108 transitions. Second operand has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:23,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:23,978 INFO L93 Difference]: Finished difference Result 23692 states and 72729 transitions. [2021-10-08 17:11:23,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-08 17:11:23,979 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:11:23,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:24,034 INFO L225 Difference]: With dead ends: 23692 [2021-10-08 17:11:24,035 INFO L226 Difference]: Without dead ends: 23148 [2021-10-08 17:11:24,035 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1603.5ms TimeCoverageRelationStatistics Valid=146, Invalid=846, Unknown=0, NotChecked=0, Total=992 [2021-10-08 17:11:24,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23148 states. [2021-10-08 17:11:24,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23148 to 18428. [2021-10-08 17:11:24,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18428 states, 18427 states have (on average 3.134802192435014) internal successors, (57765), 18427 states have internal predecessors, (57765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:24,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18428 states to 18428 states and 57765 transitions. [2021-10-08 17:11:24,559 INFO L78 Accepts]: Start accepts. Automaton has 18428 states and 57765 transitions. Word has length 53 [2021-10-08 17:11:24,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:24,559 INFO L470 AbstractCegarLoop]: Abstraction has 18428 states and 57765 transitions. [2021-10-08 17:11:24,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:24,559 INFO L276 IsEmpty]: Start isEmpty. Operand 18428 states and 57765 transitions. [2021-10-08 17:11:24,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:11:24,588 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:24,588 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:24,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:24,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:24,789 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:24,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:24,790 INFO L82 PathProgramCache]: Analyzing trace with hash 811181406, now seen corresponding path program 33 times [2021-10-08 17:11:24,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:24,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682574810] [2021-10-08 17:11:24,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:11:24,792 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:24,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:24,793 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:24,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-10-08 17:11:25,585 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:11:25,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:11:25,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-08 17:11:25,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:25,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:25,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:25,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:25,914 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:25,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682574810] [2021-10-08 17:11:25,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682574810] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:25,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:25,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-08 17:11:25,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307975856] [2021-10-08 17:11:25,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 17:11:25,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:25,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 17:11:25,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-08 17:11:25,916 INFO L87 Difference]: Start difference. First operand 18428 states and 57765 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:26,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:26,194 INFO L93 Difference]: Finished difference Result 20045 states and 61989 transitions. [2021-10-08 17:11:26,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 17:11:26,195 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:11:26,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:26,407 INFO L225 Difference]: With dead ends: 20045 [2021-10-08 17:11:26,407 INFO L226 Difference]: Without dead ends: 19732 [2021-10-08 17:11:26,407 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 101.8ms TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-08 17:11:26,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19732 states. [2021-10-08 17:11:26,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19732 to 18548. [2021-10-08 17:11:26,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18548 states, 18547 states have (on average 3.1277295519491024) internal successors, (58010), 18547 states have internal predecessors, (58010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:26,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18548 states to 18548 states and 58010 transitions. [2021-10-08 17:11:26,766 INFO L78 Accepts]: Start accepts. Automaton has 18548 states and 58010 transitions. Word has length 53 [2021-10-08 17:11:26,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:26,766 INFO L470 AbstractCegarLoop]: Abstraction has 18548 states and 58010 transitions. [2021-10-08 17:11:26,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:26,766 INFO L276 IsEmpty]: Start isEmpty. Operand 18548 states and 58010 transitions. [2021-10-08 17:11:26,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:11:26,797 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:26,797 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:26,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:26,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:26,998 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:26,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:26,999 INFO L82 PathProgramCache]: Analyzing trace with hash -851238808, now seen corresponding path program 34 times [2021-10-08 17:11:27,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:27,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397323283] [2021-10-08 17:11:27,000 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:11:27,001 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:27,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:27,002 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:27,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-10-08 17:11:27,810 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:11:27,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:11:27,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-08 17:11:27,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:28,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:28,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:28,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:28,296 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:28,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397323283] [2021-10-08 17:11:28,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397323283] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:28,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:28,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-08 17:11:28,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829402938] [2021-10-08 17:11:28,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 17:11:28,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:28,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 17:11:28,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-08 17:11:28,299 INFO L87 Difference]: Start difference. First operand 18548 states and 58010 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:28,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:28,567 INFO L93 Difference]: Finished difference Result 19565 states and 60617 transitions. [2021-10-08 17:11:28,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 17:11:28,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:11:28,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:28,610 INFO L225 Difference]: With dead ends: 19565 [2021-10-08 17:11:28,610 INFO L226 Difference]: Without dead ends: 19106 [2021-10-08 17:11:28,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 99.6ms TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-08 17:11:28,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19106 states. [2021-10-08 17:11:28,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19106 to 18468. [2021-10-08 17:11:28,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18468 states, 18467 states have (on average 3.124384036389235) internal successors, (57698), 18467 states have internal predecessors, (57698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:29,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18468 states to 18468 states and 57698 transitions. [2021-10-08 17:11:29,162 INFO L78 Accepts]: Start accepts. Automaton has 18468 states and 57698 transitions. Word has length 53 [2021-10-08 17:11:29,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:29,162 INFO L470 AbstractCegarLoop]: Abstraction has 18468 states and 57698 transitions. [2021-10-08 17:11:29,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:29,163 INFO L276 IsEmpty]: Start isEmpty. Operand 18468 states and 57698 transitions. [2021-10-08 17:11:29,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-08 17:11:29,191 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:29,191 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:29,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:29,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:29,398 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:29,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:29,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1595616168, now seen corresponding path program 35 times [2021-10-08 17:11:29,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:29,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942910625] [2021-10-08 17:11:29,400 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:11:29,400 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:29,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:29,401 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:29,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-10-08 17:11:30,243 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:11:30,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:11:30,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-08 17:11:30,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:30,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:30,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:30,568 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:30,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942910625] [2021-10-08 17:11:30,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942910625] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:30,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:30,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-08 17:11:30,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833931069] [2021-10-08 17:11:30,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 17:11:30,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:30,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 17:11:30,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-08 17:11:30,570 INFO L87 Difference]: Start difference. First operand 18468 states and 57698 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:30,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:30,841 INFO L93 Difference]: Finished difference Result 19341 states and 59907 transitions. [2021-10-08 17:11:30,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 17:11:30,842 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-08 17:11:30,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:30,884 INFO L225 Difference]: With dead ends: 19341 [2021-10-08 17:11:30,884 INFO L226 Difference]: Without dead ends: 19152 [2021-10-08 17:11:30,884 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 96.8ms TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-08 17:11:30,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19152 states. [2021-10-08 17:11:31,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19152 to 18510. [2021-10-08 17:11:31,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18510 states, 18509 states have (on average 3.1216705386568697) internal successors, (57779), 18509 states have internal predecessors, (57779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:31,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18510 states to 18510 states and 57779 transitions. [2021-10-08 17:11:31,357 INFO L78 Accepts]: Start accepts. Automaton has 18510 states and 57779 transitions. Word has length 53 [2021-10-08 17:11:31,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:31,357 INFO L470 AbstractCegarLoop]: Abstraction has 18510 states and 57779 transitions. [2021-10-08 17:11:31,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:31,357 INFO L276 IsEmpty]: Start isEmpty. Operand 18510 states and 57779 transitions. [2021-10-08 17:11:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:11:31,391 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:31,391 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:31,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:31,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:31,606 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:31,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:31,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1869385307, now seen corresponding path program 1 times [2021-10-08 17:11:31,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:31,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239846184] [2021-10-08 17:11:31,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:11:31,609 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:31,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:31,609 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:31,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-10-08 17:11:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:11:32,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-08 17:11:32,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:32,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:32,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:33,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:33,392 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:33,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239846184] [2021-10-08 17:11:33,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239846184] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:33,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:33,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-10-08 17:11:33,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52620823] [2021-10-08 17:11:33,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-08 17:11:33,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:33,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-08 17:11:33,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-10-08 17:11:33,394 INFO L87 Difference]: Start difference. First operand 18510 states and 57779 transitions. Second operand has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 14 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:34,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:34,529 INFO L93 Difference]: Finished difference Result 24292 states and 75001 transitions. [2021-10-08 17:11:34,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 17:11:34,530 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 14 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:11:34,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:34,605 INFO L225 Difference]: With dead ends: 24292 [2021-10-08 17:11:34,615 INFO L226 Difference]: Without dead ends: 22964 [2021-10-08 17:11:34,616 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 313.3ms TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2021-10-08 17:11:34,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22964 states. [2021-10-08 17:11:35,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22964 to 19296. [2021-10-08 17:11:35,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19296 states, 19295 states have (on average 3.1054677377558955) internal successors, (59920), 19295 states have internal predecessors, (59920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:35,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19296 states to 19296 states and 59920 transitions. [2021-10-08 17:11:35,178 INFO L78 Accepts]: Start accepts. Automaton has 19296 states and 59920 transitions. Word has length 54 [2021-10-08 17:11:35,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:35,181 INFO L470 AbstractCegarLoop]: Abstraction has 19296 states and 59920 transitions. [2021-10-08 17:11:35,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 14 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:35,181 INFO L276 IsEmpty]: Start isEmpty. Operand 19296 states and 59920 transitions. [2021-10-08 17:11:35,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:11:35,217 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:35,217 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:35,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:35,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:35,418 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:35,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:35,419 INFO L82 PathProgramCache]: Analyzing trace with hash 50215559, now seen corresponding path program 1 times [2021-10-08 17:11:35,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:35,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971741536] [2021-10-08 17:11:35,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:11:35,421 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:35,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:35,422 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:35,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-10-08 17:11:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:11:36,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-08 17:11:36,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:36,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:36,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:37,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:37,357 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:37,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971741536] [2021-10-08 17:11:37,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971741536] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:37,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:37,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-08 17:11:37,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237933989] [2021-10-08 17:11:37,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 17:11:37,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:37,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 17:11:37,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-10-08 17:11:37,360 INFO L87 Difference]: Start difference. First operand 19296 states and 59920 transitions. Second operand has 17 states, 17 states have (on average 5.0) internal successors, (85), 16 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:38,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:38,675 INFO L93 Difference]: Finished difference Result 25310 states and 77934 transitions. [2021-10-08 17:11:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 17:11:38,676 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.0) internal successors, (85), 16 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:11:38,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:38,737 INFO L225 Difference]: With dead ends: 25310 [2021-10-08 17:11:38,737 INFO L226 Difference]: Without dead ends: 24770 [2021-10-08 17:11:38,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 415.8ms TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2021-10-08 17:11:38,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24770 states. [2021-10-08 17:11:39,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24770 to 21052. [2021-10-08 17:11:39,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21052 states, 21051 states have (on average 3.099472709134958) internal successors, (65247), 21051 states have internal predecessors, (65247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:39,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21052 states to 21052 states and 65247 transitions. [2021-10-08 17:11:39,290 INFO L78 Accepts]: Start accepts. Automaton has 21052 states and 65247 transitions. Word has length 54 [2021-10-08 17:11:39,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:39,290 INFO L470 AbstractCegarLoop]: Abstraction has 21052 states and 65247 transitions. [2021-10-08 17:11:39,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.0) internal successors, (85), 16 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:39,290 INFO L276 IsEmpty]: Start isEmpty. Operand 21052 states and 65247 transitions. [2021-10-08 17:11:39,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:11:39,324 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:39,324 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:39,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:39,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:39,526 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:39,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:39,527 INFO L82 PathProgramCache]: Analyzing trace with hash -258536105, now seen corresponding path program 2 times [2021-10-08 17:11:39,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:39,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938924237] [2021-10-08 17:11:39,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:11:39,534 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:39,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:39,535 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:39,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-10-08 17:11:40,443 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:11:40,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:11:40,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:11:40,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:40,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:40,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:41,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:41,747 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:41,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938924237] [2021-10-08 17:11:41,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938924237] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:41,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:41,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:11:41,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205255814] [2021-10-08 17:11:41,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:11:41,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:41,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:11:41,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:11:41,749 INFO L87 Difference]: Start difference. First operand 21052 states and 65247 transitions. Second operand has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:43,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:43,838 INFO L93 Difference]: Finished difference Result 20808 states and 63551 transitions. [2021-10-08 17:11:43,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-08 17:11:43,839 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:11:43,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:43,890 INFO L225 Difference]: With dead ends: 20808 [2021-10-08 17:11:43,890 INFO L226 Difference]: Without dead ends: 20722 [2021-10-08 17:11:43,891 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 852.3ms TimeCoverageRelationStatistics Valid=185, Invalid=1075, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 17:11:43,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20722 states. [2021-10-08 17:11:44,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20722 to 19916. [2021-10-08 17:11:44,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19916 states, 19915 states have (on average 3.0719055987948782) internal successors, (61177), 19915 states have internal predecessors, (61177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:44,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19916 states to 19916 states and 61177 transitions. [2021-10-08 17:11:44,408 INFO L78 Accepts]: Start accepts. Automaton has 19916 states and 61177 transitions. Word has length 54 [2021-10-08 17:11:44,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:44,408 INFO L470 AbstractCegarLoop]: Abstraction has 19916 states and 61177 transitions. [2021-10-08 17:11:44,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:44,408 INFO L276 IsEmpty]: Start isEmpty. Operand 19916 states and 61177 transitions. [2021-10-08 17:11:44,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:11:44,441 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:44,441 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:44,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:44,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:44,642 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:44,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:44,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1766887297, now seen corresponding path program 3 times [2021-10-08 17:11:44,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:44,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861450016] [2021-10-08 17:11:44,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:11:44,645 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:44,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:44,646 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:44,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-10-08 17:11:45,583 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:11:45,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:11:45,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:11:45,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:45,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:46,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:46,703 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:46,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861450016] [2021-10-08 17:11:46,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861450016] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:46,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:46,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:11:46,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144287266] [2021-10-08 17:11:46,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:11:46,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:46,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:11:46,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:11:46,705 INFO L87 Difference]: Start difference. First operand 19916 states and 61177 transitions. Second operand has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:48,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:48,673 INFO L93 Difference]: Finished difference Result 20804 states and 63529 transitions. [2021-10-08 17:11:48,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 17:11:48,674 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:11:48,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:48,719 INFO L225 Difference]: With dead ends: 20804 [2021-10-08 17:11:48,720 INFO L226 Difference]: Without dead ends: 20726 [2021-10-08 17:11:48,720 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 897.4ms TimeCoverageRelationStatistics Valid=188, Invalid=1072, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 17:11:48,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20726 states. [2021-10-08 17:11:49,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20726 to 19912. [2021-10-08 17:11:49,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19912 states, 19911 states have (on average 3.071920044196675) internal successors, (61165), 19911 states have internal predecessors, (61165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:49,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19912 states to 19912 states and 61165 transitions. [2021-10-08 17:11:49,331 INFO L78 Accepts]: Start accepts. Automaton has 19912 states and 61165 transitions. Word has length 54 [2021-10-08 17:11:49,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:49,332 INFO L470 AbstractCegarLoop]: Abstraction has 19912 states and 61165 transitions. [2021-10-08 17:11:49,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:49,332 INFO L276 IsEmpty]: Start isEmpty. Operand 19912 states and 61165 transitions. [2021-10-08 17:11:49,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:11:49,373 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:49,373 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:49,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:49,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:49,574 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:49,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:49,575 INFO L82 PathProgramCache]: Analyzing trace with hash -292384685, now seen corresponding path program 4 times [2021-10-08 17:11:49,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:49,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42232319] [2021-10-08 17:11:49,576 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:11:49,576 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:49,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:49,577 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:49,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-10-08 17:11:50,596 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:11:50,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:11:50,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:11:50,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:50,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:50,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:51,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:51,786 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:51,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42232319] [2021-10-08 17:11:51,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42232319] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:51,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:51,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:11:51,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741019933] [2021-10-08 17:11:51,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:11:51,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:51,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:11:51,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:11:51,788 INFO L87 Difference]: Start difference. First operand 19912 states and 61165 transitions. Second operand has 23 states, 23 states have (on average 4.173913043478261) internal successors, (96), 22 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:54,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:54,262 INFO L93 Difference]: Finished difference Result 20800 states and 63517 transitions. [2021-10-08 17:11:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-08 17:11:54,263 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.173913043478261) internal successors, (96), 22 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:11:54,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:54,313 INFO L225 Difference]: With dead ends: 20800 [2021-10-08 17:11:54,313 INFO L226 Difference]: Without dead ends: 20710 [2021-10-08 17:11:54,314 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1029.5ms TimeCoverageRelationStatistics Valid=199, Invalid=1283, Unknown=0, NotChecked=0, Total=1482 [2021-10-08 17:11:54,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20710 states. [2021-10-08 17:11:54,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20710 to 19904. [2021-10-08 17:11:54,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19904 states, 19903 states have (on average 3.071948952419233) internal successors, (61141), 19903 states have internal predecessors, (61141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:54,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19904 states to 19904 states and 61141 transitions. [2021-10-08 17:11:54,686 INFO L78 Accepts]: Start accepts. Automaton has 19904 states and 61141 transitions. Word has length 54 [2021-10-08 17:11:54,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:54,686 INFO L470 AbstractCegarLoop]: Abstraction has 19904 states and 61141 transitions. [2021-10-08 17:11:54,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.173913043478261) internal successors, (96), 22 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:54,687 INFO L276 IsEmpty]: Start isEmpty. Operand 19904 states and 61141 transitions. [2021-10-08 17:11:54,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:11:54,721 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:54,722 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:54,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Ended with exit code 0 [2021-10-08 17:11:54,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:54,923 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:54,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:54,924 INFO L82 PathProgramCache]: Analyzing trace with hash 875206727, now seen corresponding path program 5 times [2021-10-08 17:11:54,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:54,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837516689] [2021-10-08 17:11:54,925 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:11:54,925 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:54,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:54,926 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:54,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-10-08 17:11:56,069 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:11:56,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:11:56,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:11:56,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:11:56,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:56,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:11:57,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:11:57,138 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:11:57,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837516689] [2021-10-08 17:11:57,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837516689] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:11:57,138 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:11:57,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:11:57,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855958746] [2021-10-08 17:11:57,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:11:57,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:11:57,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:11:57,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:11:57,140 INFO L87 Difference]: Start difference. First operand 19904 states and 61141 transitions. Second operand has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:58,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:58,483 INFO L93 Difference]: Finished difference Result 20724 states and 63335 transitions. [2021-10-08 17:11:58,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 17:11:58,484 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:11:58,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:58,534 INFO L225 Difference]: With dead ends: 20724 [2021-10-08 17:11:58,534 INFO L226 Difference]: Without dead ends: 20634 [2021-10-08 17:11:58,535 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 656.6ms TimeCoverageRelationStatistics Valid=105, Invalid=707, Unknown=0, NotChecked=0, Total=812 [2021-10-08 17:11:58,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20634 states. [2021-10-08 17:11:58,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20634 to 19900. [2021-10-08 17:11:58,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19900 states, 19899 states have (on average 3.0721644303733857) internal successors, (61133), 19899 states have internal predecessors, (61133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:59,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19900 states to 19900 states and 61133 transitions. [2021-10-08 17:11:59,037 INFO L78 Accepts]: Start accepts. Automaton has 19900 states and 61133 transitions. Word has length 54 [2021-10-08 17:11:59,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:59,037 INFO L470 AbstractCegarLoop]: Abstraction has 19900 states and 61133 transitions. [2021-10-08 17:11:59,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:59,037 INFO L276 IsEmpty]: Start isEmpty. Operand 19900 states and 61133 transitions. [2021-10-08 17:11:59,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:11:59,070 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:59,070 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:59,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:59,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:59,271 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:59,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:59,272 INFO L82 PathProgramCache]: Analyzing trace with hash -260786493, now seen corresponding path program 6 times [2021-10-08 17:11:59,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:59,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210938777] [2021-10-08 17:11:59,273 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:11:59,274 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:59,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:59,275 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:59,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-10-08 17:12:00,301 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:12:00,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:12:00,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-08 17:12:00,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:00,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:00,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:00,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:00,751 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:00,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210938777] [2021-10-08 17:12:00,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210938777] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:00,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:00,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-08 17:12:00,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102711653] [2021-10-08 17:12:00,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-08 17:12:00,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:00,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-08 17:12:00,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-10-08 17:12:00,753 INFO L87 Difference]: Start difference. First operand 19900 states and 61133 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:03,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:03,218 INFO L93 Difference]: Finished difference Result 29534 states and 88393 transitions. [2021-10-08 17:12:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-08 17:12:03,219 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:12:03,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:03,294 INFO L225 Difference]: With dead ends: 29534 [2021-10-08 17:12:03,294 INFO L226 Difference]: Without dead ends: 29530 [2021-10-08 17:12:03,295 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 779 ImplicationChecksByTransitivity, 925.1ms TimeCoverageRelationStatistics Valid=563, Invalid=1987, Unknown=0, NotChecked=0, Total=2550 [2021-10-08 17:12:03,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29530 states. [2021-10-08 17:12:03,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29530 to 19972. [2021-10-08 17:12:03,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19972 states, 19971 states have (on average 3.070802663862601) internal successors, (61327), 19971 states have internal predecessors, (61327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:03,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19972 states to 19972 states and 61327 transitions. [2021-10-08 17:12:03,937 INFO L78 Accepts]: Start accepts. Automaton has 19972 states and 61327 transitions. Word has length 54 [2021-10-08 17:12:03,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:03,937 INFO L470 AbstractCegarLoop]: Abstraction has 19972 states and 61327 transitions. [2021-10-08 17:12:03,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:03,938 INFO L276 IsEmpty]: Start isEmpty. Operand 19972 states and 61327 transitions. [2021-10-08 17:12:03,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:12:03,971 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:03,971 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:12:03,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (50)] Ended with exit code 0 [2021-10-08 17:12:04,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:12:04,172 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:12:04,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:04,173 INFO L82 PathProgramCache]: Analyzing trace with hash -938955859, now seen corresponding path program 7 times [2021-10-08 17:12:04,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:04,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906343728] [2021-10-08 17:12:04,174 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:12:04,175 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:04,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:04,176 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:12:04,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-10-08 17:12:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:12:05,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-08 17:12:05,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:05,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:05,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:06,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:06,214 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:06,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906343728] [2021-10-08 17:12:06,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1906343728] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:06,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:06,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:12:06,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184541749] [2021-10-08 17:12:06,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:12:06,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:06,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:12:06,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:12:06,216 INFO L87 Difference]: Start difference. First operand 19972 states and 61327 transitions. Second operand has 21 states, 21 states have (on average 4.333333333333333) internal successors, (91), 20 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:10,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:10,601 INFO L93 Difference]: Finished difference Result 26004 states and 78302 transitions. [2021-10-08 17:12:10,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-08 17:12:10,601 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.333333333333333) internal successors, (91), 20 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:12:10,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:10,659 INFO L225 Difference]: With dead ends: 26004 [2021-10-08 17:12:10,659 INFO L226 Difference]: Without dead ends: 25806 [2021-10-08 17:12:10,661 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1430 ImplicationChecksByTransitivity, 2757.5ms TimeCoverageRelationStatistics Valid=679, Invalid=4291, Unknown=0, NotChecked=0, Total=4970 [2021-10-08 17:12:10,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25806 states. [2021-10-08 17:12:11,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25806 to 20182. [2021-10-08 17:12:11,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20182 states, 20181 states have (on average 3.066448639809722) internal successors, (61884), 20181 states have internal predecessors, (61884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:11,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20182 states to 20182 states and 61884 transitions. [2021-10-08 17:12:11,216 INFO L78 Accepts]: Start accepts. Automaton has 20182 states and 61884 transitions. Word has length 54 [2021-10-08 17:12:11,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:11,217 INFO L470 AbstractCegarLoop]: Abstraction has 20182 states and 61884 transitions. [2021-10-08 17:12:11,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.333333333333333) internal successors, (91), 20 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:11,217 INFO L276 IsEmpty]: Start isEmpty. Operand 20182 states and 61884 transitions. [2021-10-08 17:12:11,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:12:11,249 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:11,249 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:12:11,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-10-08 17:12:11,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:12:11,450 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:12:11,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:11,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1497955887, now seen corresponding path program 8 times [2021-10-08 17:12:11,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:11,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629207039] [2021-10-08 17:12:11,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:12:11,453 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:11,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:11,454 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:12:11,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-10-08 17:12:12,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:12:12,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:12:12,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-08 17:12:12,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:12,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:12,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:13,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:13,492 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:13,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629207039] [2021-10-08 17:12:13,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629207039] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:13,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:13,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-08 17:12:13,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750965862] [2021-10-08 17:12:13,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-08 17:12:13,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:13,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-08 17:12:13,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-10-08 17:12:13,495 INFO L87 Difference]: Start difference. First operand 20182 states and 61884 transitions. Second operand has 19 states, 19 states have (on average 4.7894736842105265) internal successors, (91), 18 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:18,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:18,024 INFO L93 Difference]: Finished difference Result 25694 states and 77266 transitions. [2021-10-08 17:12:18,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-10-08 17:12:18,025 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.7894736842105265) internal successors, (91), 18 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:12:18,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:18,089 INFO L225 Difference]: With dead ends: 25694 [2021-10-08 17:12:18,089 INFO L226 Difference]: Without dead ends: 25396 [2021-10-08 17:12:18,090 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1516 ImplicationChecksByTransitivity, 2225.1ms TimeCoverageRelationStatistics Valid=699, Invalid=4271, Unknown=0, NotChecked=0, Total=4970 [2021-10-08 17:12:18,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25396 states. [2021-10-08 17:12:18,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25396 to 19678. [2021-10-08 17:12:18,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19678 states, 19677 states have (on average 3.0696752553742948) internal successors, (60402), 19677 states have internal predecessors, (60402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:18,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19678 states to 19678 states and 60402 transitions. [2021-10-08 17:12:18,643 INFO L78 Accepts]: Start accepts. Automaton has 19678 states and 60402 transitions. Word has length 54 [2021-10-08 17:12:18,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:18,643 INFO L470 AbstractCegarLoop]: Abstraction has 19678 states and 60402 transitions. [2021-10-08 17:12:18,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.7894736842105265) internal successors, (91), 18 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:18,643 INFO L276 IsEmpty]: Start isEmpty. Operand 19678 states and 60402 transitions. [2021-10-08 17:12:18,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:12:18,678 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:18,678 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:12:18,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (52)] Ended with exit code 0 [2021-10-08 17:12:18,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:12:18,879 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:12:18,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:18,880 INFO L82 PathProgramCache]: Analyzing trace with hash -19381567, now seen corresponding path program 9 times [2021-10-08 17:12:18,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:18,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734111517] [2021-10-08 17:12:18,882 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:12:18,882 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:18,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:18,883 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:12:18,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-10-08 17:12:19,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:12:19,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:12:19,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-08 17:12:19,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:20,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:20,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:20,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:20,425 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:20,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734111517] [2021-10-08 17:12:20,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734111517] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:20,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:20,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-08 17:12:20,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329730211] [2021-10-08 17:12:20,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-08 17:12:20,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:20,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-08 17:12:20,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-10-08 17:12:20,427 INFO L87 Difference]: Start difference. First operand 19678 states and 60402 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:21,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:21,758 INFO L93 Difference]: Finished difference Result 24488 states and 74231 transitions. [2021-10-08 17:12:21,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-08 17:12:21,759 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:12:21,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:21,818 INFO L225 Difference]: With dead ends: 24488 [2021-10-08 17:12:21,818 INFO L226 Difference]: Without dead ends: 24474 [2021-10-08 17:12:21,818 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 419.4ms TimeCoverageRelationStatistics Valid=186, Invalid=684, Unknown=0, NotChecked=0, Total=870 [2021-10-08 17:12:21,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24474 states. [2021-10-08 17:12:22,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24474 to 19666. [2021-10-08 17:12:22,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19666 states, 19665 states have (on average 3.0700737350622935) internal successors, (60373), 19665 states have internal predecessors, (60373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:22,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19666 states to 19666 states and 60373 transitions. [2021-10-08 17:12:22,243 INFO L78 Accepts]: Start accepts. Automaton has 19666 states and 60373 transitions. Word has length 54 [2021-10-08 17:12:22,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:22,244 INFO L470 AbstractCegarLoop]: Abstraction has 19666 states and 60373 transitions. [2021-10-08 17:12:22,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:22,244 INFO L276 IsEmpty]: Start isEmpty. Operand 19666 states and 60373 transitions. [2021-10-08 17:12:22,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:12:22,431 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:22,431 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:12:22,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2021-10-08 17:12:22,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:12:22,638 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:12:22,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:22,639 INFO L82 PathProgramCache]: Analyzing trace with hash -593658109, now seen corresponding path program 10 times [2021-10-08 17:12:22,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:22,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735857744] [2021-10-08 17:12:22,640 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:12:22,640 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:22,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:22,641 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:12:22,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-10-08 17:12:23,725 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:12:23,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:12:23,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-08 17:12:23,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:23,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:24,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:24,182 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:24,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735857744] [2021-10-08 17:12:24,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [735857744] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:24,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:24,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-08 17:12:24,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795005671] [2021-10-08 17:12:24,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-08 17:12:24,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:24,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-08 17:12:24,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-10-08 17:12:24,184 INFO L87 Difference]: Start difference. First operand 19666 states and 60373 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:26,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:26,541 INFO L93 Difference]: Finished difference Result 31462 states and 94552 transitions. [2021-10-08 17:12:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-08 17:12:26,542 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:12:26,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:26,628 INFO L225 Difference]: With dead ends: 31462 [2021-10-08 17:12:26,628 INFO L226 Difference]: Without dead ends: 31444 [2021-10-08 17:12:26,628 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 722.4ms TimeCoverageRelationStatistics Valid=290, Invalid=1116, Unknown=0, NotChecked=0, Total=1406 [2021-10-08 17:12:26,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31444 states. [2021-10-08 17:12:27,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31444 to 19730. [2021-10-08 17:12:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19730 states, 19729 states have (on average 3.0717218308074408) internal successors, (60602), 19729 states have internal predecessors, (60602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:27,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19730 states to 19730 states and 60602 transitions. [2021-10-08 17:12:27,527 INFO L78 Accepts]: Start accepts. Automaton has 19730 states and 60602 transitions. Word has length 54 [2021-10-08 17:12:27,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:27,527 INFO L470 AbstractCegarLoop]: Abstraction has 19730 states and 60602 transitions. [2021-10-08 17:12:27,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:27,528 INFO L276 IsEmpty]: Start isEmpty. Operand 19730 states and 60602 transitions. [2021-10-08 17:12:27,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:12:27,578 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:27,578 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:12:27,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2021-10-08 17:12:27,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:12:27,792 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:12:27,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:27,793 INFO L82 PathProgramCache]: Analyzing trace with hash 213529819, now seen corresponding path program 11 times [2021-10-08 17:12:27,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:27,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105538166] [2021-10-08 17:12:27,794 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:12:27,794 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:27,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:27,795 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:12:27,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2021-10-08 17:12:29,108 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:12:29,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:12:29,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:12:29,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:29,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:29,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:30,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:30,460 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:30,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105538166] [2021-10-08 17:12:30,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105538166] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:30,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:30,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:12:30,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436316288] [2021-10-08 17:12:30,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:12:30,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:30,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:12:30,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:12:30,463 INFO L87 Difference]: Start difference. First operand 19730 states and 60602 transitions. Second operand has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:32,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:32,474 INFO L93 Difference]: Finished difference Result 20862 states and 63740 transitions. [2021-10-08 17:12:32,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 17:12:32,475 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:12:32,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:32,533 INFO L225 Difference]: With dead ends: 20862 [2021-10-08 17:12:32,533 INFO L226 Difference]: Without dead ends: 20768 [2021-10-08 17:12:32,534 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1000.7ms TimeCoverageRelationStatistics Valid=168, Invalid=1092, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 17:12:32,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20768 states. [2021-10-08 17:12:32,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20768 to 19802. [2021-10-08 17:12:33,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19802 states, 19801 states have (on average 3.0715620423210948) internal successors, (60820), 19801 states have internal predecessors, (60820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:33,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19802 states to 19802 states and 60820 transitions. [2021-10-08 17:12:33,090 INFO L78 Accepts]: Start accepts. Automaton has 19802 states and 60820 transitions. Word has length 54 [2021-10-08 17:12:33,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:33,091 INFO L470 AbstractCegarLoop]: Abstraction has 19802 states and 60820 transitions. [2021-10-08 17:12:33,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:33,091 INFO L276 IsEmpty]: Start isEmpty. Operand 19802 states and 60820 transitions. [2021-10-08 17:12:33,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:12:33,132 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:33,133 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:12:33,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2021-10-08 17:12:33,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:12:33,334 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:12:33,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:33,334 INFO L82 PathProgramCache]: Analyzing trace with hash -703548299, now seen corresponding path program 12 times [2021-10-08 17:12:33,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:33,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39235148] [2021-10-08 17:12:33,335 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:12:33,336 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:33,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:33,337 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:12:33,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-10-08 17:12:34,508 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:12:34,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:12:34,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:12:34,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:34,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:34,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:36,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:36,188 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:36,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39235148] [2021-10-08 17:12:36,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39235148] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:36,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:36,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:12:36,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998278303] [2021-10-08 17:12:36,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:12:36,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:36,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:12:36,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:12:36,190 INFO L87 Difference]: Start difference. First operand 19802 states and 60820 transitions. Second operand has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:38,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:38,513 INFO L93 Difference]: Finished difference Result 21060 states and 64271 transitions. [2021-10-08 17:12:38,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 17:12:38,513 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:12:38,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:38,562 INFO L225 Difference]: With dead ends: 21060 [2021-10-08 17:12:38,562 INFO L226 Difference]: Without dead ends: 20986 [2021-10-08 17:12:38,563 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1337.3ms TimeCoverageRelationStatistics Valid=189, Invalid=1143, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 17:12:38,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20986 states. [2021-10-08 17:12:39,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20986 to 19804. [2021-10-08 17:12:39,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19804 states, 19803 states have (on average 3.0714033227288793) internal successors, (60823), 19803 states have internal predecessors, (60823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:39,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19804 states to 19804 states and 60823 transitions. [2021-10-08 17:12:39,146 INFO L78 Accepts]: Start accepts. Automaton has 19804 states and 60823 transitions. Word has length 54 [2021-10-08 17:12:39,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:39,147 INFO L470 AbstractCegarLoop]: Abstraction has 19804 states and 60823 transitions. [2021-10-08 17:12:39,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:39,147 INFO L276 IsEmpty]: Start isEmpty. Operand 19804 states and 60823 transitions. [2021-10-08 17:12:39,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:12:39,188 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:39,188 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:12:39,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2021-10-08 17:12:39,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:12:39,389 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:12:39,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:39,389 INFO L82 PathProgramCache]: Analyzing trace with hash -677446263, now seen corresponding path program 13 times [2021-10-08 17:12:39,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:39,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615489891] [2021-10-08 17:12:39,390 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:12:39,390 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:39,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:39,392 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:12:39,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2021-10-08 17:12:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:12:40,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:12:40,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:41,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:41,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:41,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:41,973 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:41,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615489891] [2021-10-08 17:12:41,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615489891] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:41,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:41,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:12:41,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531298900] [2021-10-08 17:12:41,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:12:41,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:41,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:12:41,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:12:41,975 INFO L87 Difference]: Start difference. First operand 19804 states and 60823 transitions. Second operand has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:44,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:44,056 INFO L93 Difference]: Finished difference Result 20960 states and 64049 transitions. [2021-10-08 17:12:44,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-08 17:12:44,057 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:12:44,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:44,108 INFO L225 Difference]: With dead ends: 20960 [2021-10-08 17:12:44,108 INFO L226 Difference]: Without dead ends: 20876 [2021-10-08 17:12:44,109 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1047.0ms TimeCoverageRelationStatistics Valid=186, Invalid=1146, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 17:12:44,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20876 states. [2021-10-08 17:12:44,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20876 to 19798. [2021-10-08 17:12:44,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19798 states, 19797 states have (on average 3.071576501490125) internal successors, (60808), 19797 states have internal predecessors, (60808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:44,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19798 states to 19798 states and 60808 transitions. [2021-10-08 17:12:44,753 INFO L78 Accepts]: Start accepts. Automaton has 19798 states and 60808 transitions. Word has length 54 [2021-10-08 17:12:44,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:44,753 INFO L470 AbstractCegarLoop]: Abstraction has 19798 states and 60808 transitions. [2021-10-08 17:12:44,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:44,753 INFO L276 IsEmpty]: Start isEmpty. Operand 19798 states and 60808 transitions. [2021-10-08 17:12:44,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:12:44,786 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:44,786 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:12:44,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2021-10-08 17:12:44,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:12:44,987 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:12:44,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:44,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1282819457, now seen corresponding path program 14 times [2021-10-08 17:12:44,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:44,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580258929] [2021-10-08 17:12:44,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:12:44,988 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:44,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:44,989 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:12:44,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2021-10-08 17:12:46,237 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:12:46,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:12:46,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:12:46,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:46,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:46,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:47,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:47,634 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:47,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580258929] [2021-10-08 17:12:47,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580258929] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:47,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:47,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-08 17:12:47,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818922009] [2021-10-08 17:12:47,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 17:12:47,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:47,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 17:12:47,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:12:47,636 INFO L87 Difference]: Start difference. First operand 19798 states and 60808 transitions. Second operand has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:49,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:49,528 INFO L93 Difference]: Finished difference Result 20814 states and 63616 transitions. [2021-10-08 17:12:49,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-08 17:12:49,529 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:12:49,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:49,580 INFO L225 Difference]: With dead ends: 20814 [2021-10-08 17:12:49,581 INFO L226 Difference]: Without dead ends: 20736 [2021-10-08 17:12:49,581 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1113.8ms TimeCoverageRelationStatistics Valid=173, Invalid=1233, Unknown=0, NotChecked=0, Total=1406 [2021-10-08 17:12:49,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20736 states. [2021-10-08 17:12:49,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20736 to 19800. [2021-10-08 17:12:49,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19800 states, 19799 states have (on average 3.07141774837113) internal successors, (60811), 19799 states have internal predecessors, (60811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:49,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19800 states to 19800 states and 60811 transitions. [2021-10-08 17:12:49,980 INFO L78 Accepts]: Start accepts. Automaton has 19800 states and 60811 transitions. Word has length 54 [2021-10-08 17:12:49,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:49,980 INFO L470 AbstractCegarLoop]: Abstraction has 19800 states and 60811 transitions. [2021-10-08 17:12:49,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:49,980 INFO L276 IsEmpty]: Start isEmpty. Operand 19800 states and 60811 transitions. [2021-10-08 17:12:50,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:12:50,016 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:50,016 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:12:50,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2021-10-08 17:12:50,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:12:50,217 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:12:50,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:50,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1158524501, now seen corresponding path program 15 times [2021-10-08 17:12:50,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:50,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9573188] [2021-10-08 17:12:50,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:12:50,220 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:50,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:50,221 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:12:50,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-10-08 17:12:51,642 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:12:51,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:12:51,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:12:51,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:52,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:52,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:53,085 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:53,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9573188] [2021-10-08 17:12:53,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9573188] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:53,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:53,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-08 17:12:53,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361876822] [2021-10-08 17:12:53,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 17:12:53,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:53,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 17:12:53,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:12:53,087 INFO L87 Difference]: Start difference. First operand 19800 states and 60811 transitions. Second operand has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:55,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:55,457 INFO L93 Difference]: Finished difference Result 21058 states and 64262 transitions. [2021-10-08 17:12:55,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-08 17:12:55,458 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:12:55,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:55,510 INFO L225 Difference]: With dead ends: 21058 [2021-10-08 17:12:55,510 INFO L226 Difference]: Without dead ends: 20984 [2021-10-08 17:12:55,511 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1290.1ms TimeCoverageRelationStatistics Valid=221, Invalid=1419, Unknown=0, NotChecked=0, Total=1640 [2021-10-08 17:12:55,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20984 states. [2021-10-08 17:12:55,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20984 to 19806. [2021-10-08 17:12:55,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19806 states, 19805 states have (on average 3.0711436505932843) internal successors, (60824), 19805 states have internal predecessors, (60824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:56,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19806 states to 19806 states and 60824 transitions. [2021-10-08 17:12:56,033 INFO L78 Accepts]: Start accepts. Automaton has 19806 states and 60824 transitions. Word has length 54 [2021-10-08 17:12:56,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:56,033 INFO L470 AbstractCegarLoop]: Abstraction has 19806 states and 60824 transitions. [2021-10-08 17:12:56,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:56,033 INFO L276 IsEmpty]: Start isEmpty. Operand 19806 states and 60824 transitions. [2021-10-08 17:12:56,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:12:56,066 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:56,066 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:12:56,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2021-10-08 17:12:56,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:12:56,268 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:12:56,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:56,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1132422465, now seen corresponding path program 16 times [2021-10-08 17:12:56,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:56,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134021880] [2021-10-08 17:12:56,270 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:12:56,270 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:56,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:56,272 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:12:56,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2021-10-08 17:12:57,482 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:12:57,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:12:57,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:12:57,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:58,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:58,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:12:58,945 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:58,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134021880] [2021-10-08 17:12:58,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134021880] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:58,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:58,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-08 17:12:58,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711331990] [2021-10-08 17:12:58,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 17:12:58,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:58,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 17:12:58,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:12:58,947 INFO L87 Difference]: Start difference. First operand 19806 states and 60824 transitions. Second operand has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:01,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:13:01,184 INFO L93 Difference]: Finished difference Result 20958 states and 64040 transitions. [2021-10-08 17:13:01,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 17:13:01,184 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:13:01,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:13:01,230 INFO L225 Difference]: With dead ends: 20958 [2021-10-08 17:13:01,230 INFO L226 Difference]: Without dead ends: 20872 [2021-10-08 17:13:01,231 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1154.1ms TimeCoverageRelationStatistics Valid=216, Invalid=1424, Unknown=0, NotChecked=0, Total=1640 [2021-10-08 17:13:01,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20872 states. [2021-10-08 17:13:01,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20872 to 19798. [2021-10-08 17:13:01,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19798 states, 19797 states have (on average 3.0713744506743446) internal successors, (60804), 19797 states have internal predecessors, (60804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:01,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19798 states to 19798 states and 60804 transitions. [2021-10-08 17:13:01,702 INFO L78 Accepts]: Start accepts. Automaton has 19798 states and 60804 transitions. Word has length 54 [2021-10-08 17:13:01,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:13:01,702 INFO L470 AbstractCegarLoop]: Abstraction has 19798 states and 60804 transitions. [2021-10-08 17:13:01,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:01,702 INFO L276 IsEmpty]: Start isEmpty. Operand 19798 states and 60804 transitions. [2021-10-08 17:13:01,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:13:01,735 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:13:01,735 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:13:01,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2021-10-08 17:13:01,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:13:01,936 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:13:01,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:13:01,937 INFO L82 PathProgramCache]: Analyzing trace with hash -57749451, now seen corresponding path program 17 times [2021-10-08 17:13:01,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:13:01,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069189421] [2021-10-08 17:13:01,939 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:13:01,939 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:13:01,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:13:01,941 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:13:01,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2021-10-08 17:13:03,302 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:13:03,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:13:03,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:13:03,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:13:03,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:03,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:13:04,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:04,703 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:13:04,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069189421] [2021-10-08 17:13:04,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069189421] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:13:04,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:13:04,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:13:04,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977325513] [2021-10-08 17:13:04,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:13:04,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:13:04,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:13:04,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:13:04,705 INFO L87 Difference]: Start difference. First operand 19798 states and 60804 transitions. Second operand has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:06,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:13:06,347 INFO L93 Difference]: Finished difference Result 20722 states and 63344 transitions. [2021-10-08 17:13:06,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 17:13:06,347 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:13:06,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:13:06,391 INFO L225 Difference]: With dead ends: 20722 [2021-10-08 17:13:06,392 INFO L226 Difference]: Without dead ends: 20640 [2021-10-08 17:13:06,392 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 879.0ms TimeCoverageRelationStatistics Valid=153, Invalid=969, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 17:13:06,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20640 states. [2021-10-08 17:13:06,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20640 to 19798. [2021-10-08 17:13:06,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19798 states, 19797 states have (on average 3.0712734252664546) internal successors, (60802), 19797 states have internal predecessors, (60802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:06,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19798 states to 19798 states and 60802 transitions. [2021-10-08 17:13:06,916 INFO L78 Accepts]: Start accepts. Automaton has 19798 states and 60802 transitions. Word has length 54 [2021-10-08 17:13:06,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:13:06,916 INFO L470 AbstractCegarLoop]: Abstraction has 19798 states and 60802 transitions. [2021-10-08 17:13:06,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:06,916 INFO L276 IsEmpty]: Start isEmpty. Operand 19798 states and 60802 transitions. [2021-10-08 17:13:06,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:13:06,947 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:13:06,947 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:13:06,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (61)] Ended with exit code 0 [2021-10-08 17:13:07,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:13:07,148 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:13:07,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:13:07,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1167300107, now seen corresponding path program 18 times [2021-10-08 17:13:07,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:13:07,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68201756] [2021-10-08 17:13:07,150 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:13:07,150 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:13:07,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:13:07,152 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:13:07,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2021-10-08 17:13:08,467 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:13:08,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:13:08,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:13:08,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:13:08,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:08,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:13:09,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:09,784 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:13:09,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68201756] [2021-10-08 17:13:09,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68201756] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:13:09,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:13:09,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-08 17:13:09,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206971181] [2021-10-08 17:13:09,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 17:13:09,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:13:09,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 17:13:09,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:13:09,786 INFO L87 Difference]: Start difference. First operand 19798 states and 60802 transitions. Second operand has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:12,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:13:12,023 INFO L93 Difference]: Finished difference Result 20950 states and 64016 transitions. [2021-10-08 17:13:12,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 17:13:12,025 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:13:12,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:13:12,074 INFO L225 Difference]: With dead ends: 20950 [2021-10-08 17:13:12,074 INFO L226 Difference]: Without dead ends: 20864 [2021-10-08 17:13:12,075 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1198.7ms TimeCoverageRelationStatistics Valid=210, Invalid=1430, Unknown=0, NotChecked=0, Total=1640 [2021-10-08 17:13:12,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20864 states. [2021-10-08 17:13:12,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20864 to 19790. [2021-10-08 17:13:12,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19790 states, 19789 states have (on average 3.0716054373641923) internal successors, (60784), 19789 states have internal predecessors, (60784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:12,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19790 states to 19790 states and 60784 transitions. [2021-10-08 17:13:12,732 INFO L78 Accepts]: Start accepts. Automaton has 19790 states and 60784 transitions. Word has length 54 [2021-10-08 17:13:12,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:13:12,732 INFO L470 AbstractCegarLoop]: Abstraction has 19790 states and 60784 transitions. [2021-10-08 17:13:12,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:12,733 INFO L276 IsEmpty]: Start isEmpty. Operand 19790 states and 60784 transitions. [2021-10-08 17:13:12,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:13:12,771 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:13:12,771 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:13:12,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2021-10-08 17:13:12,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:13:12,985 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:13:12,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:13:12,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1426867435, now seen corresponding path program 19 times [2021-10-08 17:13:12,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:13:12,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296728049] [2021-10-08 17:13:12,987 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:13:12,987 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:13:12,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:13:12,988 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:13:12,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2021-10-08 17:13:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:13:14,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:13:14,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:13:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:14,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:13:15,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:15,575 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:13:15,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296728049] [2021-10-08 17:13:15,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296728049] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:13:15,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:13:15,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:13:15,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927249979] [2021-10-08 17:13:15,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:13:15,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:13:15,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:13:15,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:13:15,580 INFO L87 Difference]: Start difference. First operand 19790 states and 60784 transitions. Second operand has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:17,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:13:17,520 INFO L93 Difference]: Finished difference Result 20590 states and 62922 transitions. [2021-10-08 17:13:17,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 17:13:17,520 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:13:17,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:13:17,564 INFO L225 Difference]: With dead ends: 20590 [2021-10-08 17:13:17,564 INFO L226 Difference]: Without dead ends: 20508 [2021-10-08 17:13:17,565 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 943.2ms TimeCoverageRelationStatistics Valid=195, Invalid=1211, Unknown=0, NotChecked=0, Total=1406 [2021-10-08 17:13:17,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20508 states. [2021-10-08 17:13:17,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20508 to 19790. [2021-10-08 17:13:17,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19790 states, 19789 states have (on average 3.071504371115266) internal successors, (60782), 19789 states have internal predecessors, (60782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:17,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19790 states to 19790 states and 60782 transitions. [2021-10-08 17:13:17,918 INFO L78 Accepts]: Start accepts. Automaton has 19790 states and 60782 transitions. Word has length 54 [2021-10-08 17:13:17,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:13:17,918 INFO L470 AbstractCegarLoop]: Abstraction has 19790 states and 60782 transitions. [2021-10-08 17:13:17,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:17,918 INFO L276 IsEmpty]: Start isEmpty. Operand 19790 states and 60782 transitions. [2021-10-08 17:13:17,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:13:17,950 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:13:17,950 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:13:17,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2021-10-08 17:13:18,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:13:18,151 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:13:18,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:13:18,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1643050303, now seen corresponding path program 20 times [2021-10-08 17:13:18,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:13:18,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1531934563] [2021-10-08 17:13:18,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:13:18,154 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:13:18,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:13:18,154 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:13:18,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2021-10-08 17:13:19,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:13:19,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:13:19,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:13:19,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:13:20,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:20,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:13:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:20,903 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:13:20,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1531934563] [2021-10-08 17:13:20,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1531934563] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:13:20,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:13:20,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-08 17:13:20,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313689267] [2021-10-08 17:13:20,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 17:13:20,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:13:20,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 17:13:20,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:13:20,906 INFO L87 Difference]: Start difference. First operand 19790 states and 60782 transitions. Second operand has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:23,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:13:23,358 INFO L93 Difference]: Finished difference Result 20690 states and 63146 transitions. [2021-10-08 17:13:23,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-08 17:13:23,358 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:13:23,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:13:23,402 INFO L225 Difference]: With dead ends: 20690 [2021-10-08 17:13:23,402 INFO L226 Difference]: Without dead ends: 20612 [2021-10-08 17:13:23,403 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1230.8ms TimeCoverageRelationStatistics Valid=231, Invalid=1575, Unknown=0, NotChecked=0, Total=1806 [2021-10-08 17:13:23,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20612 states. [2021-10-08 17:13:23,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20612 to 19798. [2021-10-08 17:13:23,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19798 states, 19797 states have (on average 3.0710713744506744) internal successors, (60798), 19797 states have internal predecessors, (60798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:23,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19798 states to 19798 states and 60798 transitions. [2021-10-08 17:13:23,852 INFO L78 Accepts]: Start accepts. Automaton has 19798 states and 60798 transitions. Word has length 54 [2021-10-08 17:13:23,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:13:23,852 INFO L470 AbstractCegarLoop]: Abstraction has 19798 states and 60798 transitions. [2021-10-08 17:13:23,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:23,852 INFO L276 IsEmpty]: Start isEmpty. Operand 19798 states and 60798 transitions. [2021-10-08 17:13:23,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:13:23,882 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:13:23,882 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:13:23,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2021-10-08 17:13:24,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:13:24,091 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:13:24,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:13:24,092 INFO L82 PathProgramCache]: Analyzing trace with hash 236675071, now seen corresponding path program 21 times [2021-10-08 17:13:24,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:13:24,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93931258] [2021-10-08 17:13:24,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:13:24,094 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:13:24,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:13:24,096 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:13:24,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2021-10-08 17:13:25,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:13:25,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:13:25,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:13:25,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:13:26,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:26,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:13:26,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:26,875 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:13:26,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93931258] [2021-10-08 17:13:26,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [93931258] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:13:26,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:13:26,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:13:26,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843357970] [2021-10-08 17:13:26,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:13:26,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:13:26,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:13:26,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:13:26,878 INFO L87 Difference]: Start difference. First operand 19798 states and 60798 transitions. Second operand has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:29,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:13:29,383 INFO L93 Difference]: Finished difference Result 20594 states and 62930 transitions. [2021-10-08 17:13:29,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-08 17:13:29,384 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:13:29,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:13:29,429 INFO L225 Difference]: With dead ends: 20594 [2021-10-08 17:13:29,429 INFO L226 Difference]: Without dead ends: 20496 [2021-10-08 17:13:29,430 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1032.4ms TimeCoverageRelationStatistics Valid=216, Invalid=1344, Unknown=0, NotChecked=0, Total=1560 [2021-10-08 17:13:29,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20496 states. [2021-10-08 17:13:29,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20496 to 19784. [2021-10-08 17:13:29,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19784 states, 19783 states have (on average 3.071576606177021) internal successors, (60765), 19783 states have internal predecessors, (60765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:29,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19784 states to 19784 states and 60765 transitions. [2021-10-08 17:13:29,896 INFO L78 Accepts]: Start accepts. Automaton has 19784 states and 60765 transitions. Word has length 54 [2021-10-08 17:13:29,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:13:29,897 INFO L470 AbstractCegarLoop]: Abstraction has 19784 states and 60765 transitions. [2021-10-08 17:13:29,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:29,897 INFO L276 IsEmpty]: Start isEmpty. Operand 19784 states and 60765 transitions. [2021-10-08 17:13:29,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:13:29,928 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:13:29,928 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:13:29,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2021-10-08 17:13:30,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:13:30,129 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:13:30,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:13:30,131 INFO L82 PathProgramCache]: Analyzing trace with hash -500101875, now seen corresponding path program 22 times [2021-10-08 17:13:30,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:13:30,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72384984] [2021-10-08 17:13:30,132 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:13:30,132 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:13:30,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:13:30,133 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:13:30,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2021-10-08 17:13:31,578 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:13:31,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:13:31,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:13:31,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:13:32,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:32,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:13:32,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:32,936 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:13:32,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72384984] [2021-10-08 17:13:32,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72384984] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:13:32,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:13:32,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:13:32,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666923535] [2021-10-08 17:13:32,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:13:32,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:13:32,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:13:32,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:13:32,938 INFO L87 Difference]: Start difference. First operand 19784 states and 60765 transitions. Second operand has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:34,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:13:34,471 INFO L93 Difference]: Finished difference Result 20552 states and 62827 transitions. [2021-10-08 17:13:34,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 17:13:34,472 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:13:34,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:13:34,517 INFO L225 Difference]: With dead ends: 20552 [2021-10-08 17:13:34,517 INFO L226 Difference]: Without dead ends: 20460 [2021-10-08 17:13:34,517 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 794.8ms TimeCoverageRelationStatistics Valid=121, Invalid=871, Unknown=0, NotChecked=0, Total=992 [2021-10-08 17:13:34,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20460 states. [2021-10-08 17:13:34,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20460 to 19774. [2021-10-08 17:13:34,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19774 states, 19773 states have (on average 3.0719668234461133) internal successors, (60742), 19773 states have internal predecessors, (60742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:34,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19774 states to 19774 states and 60742 transitions. [2021-10-08 17:13:34,999 INFO L78 Accepts]: Start accepts. Automaton has 19774 states and 60742 transitions. Word has length 54 [2021-10-08 17:13:34,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:13:34,999 INFO L470 AbstractCegarLoop]: Abstraction has 19774 states and 60742 transitions. [2021-10-08 17:13:34,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:34,999 INFO L276 IsEmpty]: Start isEmpty. Operand 19774 states and 60742 transitions. [2021-10-08 17:13:35,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:13:35,031 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:13:35,031 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:13:35,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (66)] Forceful destruction successful, exit code 0 [2021-10-08 17:13:35,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:13:35,232 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:13:35,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:13:35,233 INFO L82 PathProgramCache]: Analyzing trace with hash -626243347, now seen corresponding path program 23 times [2021-10-08 17:13:35,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:13:35,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284198147] [2021-10-08 17:13:35,234 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:13:35,235 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:13:35,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:13:35,236 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:13:35,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2021-10-08 17:13:36,716 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:13:36,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:13:36,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:13:36,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:13:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:37,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:13:38,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:38,001 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:13:38,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284198147] [2021-10-08 17:13:38,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284198147] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:13:38,001 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:13:38,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:13:38,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872168023] [2021-10-08 17:13:38,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:13:38,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:13:38,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:13:38,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:13:38,003 INFO L87 Difference]: Start difference. First operand 19774 states and 60742 transitions. Second operand has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:39,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:13:39,946 INFO L93 Difference]: Finished difference Result 20586 states and 63010 transitions. [2021-10-08 17:13:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-08 17:13:39,947 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:13:39,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:13:39,996 INFO L225 Difference]: With dead ends: 20586 [2021-10-08 17:13:39,996 INFO L226 Difference]: Without dead ends: 20492 [2021-10-08 17:13:39,997 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 953.6ms TimeCoverageRelationStatistics Valid=174, Invalid=1158, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 17:13:40,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20492 states. [2021-10-08 17:13:40,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20492 to 19734. [2021-10-08 17:13:40,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19734 states, 19733 states have (on average 3.0723154107332893) internal successors, (60626), 19733 states have internal predecessors, (60626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:40,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19734 states to 19734 states and 60626 transitions. [2021-10-08 17:13:40,566 INFO L78 Accepts]: Start accepts. Automaton has 19734 states and 60626 transitions. Word has length 54 [2021-10-08 17:13:40,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:13:40,566 INFO L470 AbstractCegarLoop]: Abstraction has 19734 states and 60626 transitions. [2021-10-08 17:13:40,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:40,566 INFO L276 IsEmpty]: Start isEmpty. Operand 19734 states and 60626 transitions. [2021-10-08 17:13:40,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:13:40,599 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:13:40,600 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:13:40,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (67)] Forceful destruction successful, exit code 0 [2021-10-08 17:13:40,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:13:40,802 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:13:40,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:13:40,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1543321465, now seen corresponding path program 24 times [2021-10-08 17:13:40,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:13:40,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236721441] [2021-10-08 17:13:40,804 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:13:40,804 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:13:40,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:13:40,805 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:13:40,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2021-10-08 17:13:42,393 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:13:42,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:13:42,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:13:42,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:13:42,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:42,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:13:43,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:43,671 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:13:43,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [236721441] [2021-10-08 17:13:43,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [236721441] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:13:43,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:13:43,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:13:43,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938824258] [2021-10-08 17:13:43,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:13:43,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:13:43,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:13:43,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:13:43,673 INFO L87 Difference]: Start difference. First operand 19734 states and 60626 transitions. Second operand has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:46,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:13:46,569 INFO L93 Difference]: Finished difference Result 20858 states and 63736 transitions. [2021-10-08 17:13:46,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-08 17:13:46,570 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:13:46,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:13:46,618 INFO L225 Difference]: With dead ends: 20858 [2021-10-08 17:13:46,618 INFO L226 Difference]: Without dead ends: 20784 [2021-10-08 17:13:46,619 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1393.7ms TimeCoverageRelationStatistics Valid=229, Invalid=1411, Unknown=0, NotChecked=0, Total=1640 [2021-10-08 17:13:46,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20784 states. [2021-10-08 17:13:46,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20784 to 19736. [2021-10-08 17:13:46,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19736 states, 19735 states have (on average 3.0721560678996704) internal successors, (60629), 19735 states have internal predecessors, (60629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:47,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19736 states to 19736 states and 60629 transitions. [2021-10-08 17:13:47,020 INFO L78 Accepts]: Start accepts. Automaton has 19736 states and 60629 transitions. Word has length 54 [2021-10-08 17:13:47,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:13:47,021 INFO L470 AbstractCegarLoop]: Abstraction has 19736 states and 60629 transitions. [2021-10-08 17:13:47,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:47,021 INFO L276 IsEmpty]: Start isEmpty. Operand 19736 states and 60629 transitions. [2021-10-08 17:13:47,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:13:47,208 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:13:47,208 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:13:47,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2021-10-08 17:13:47,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:13:47,409 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:13:47,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:13:47,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1517219429, now seen corresponding path program 25 times [2021-10-08 17:13:47,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:13:47,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122561907] [2021-10-08 17:13:47,410 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:13:47,410 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:13:47,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:13:47,411 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:13:47,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2021-10-08 17:13:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:13:48,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:13:48,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:13:49,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:49,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:13:50,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:50,263 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:13:50,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [122561907] [2021-10-08 17:13:50,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [122561907] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:13:50,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:13:50,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:13:50,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442286820] [2021-10-08 17:13:50,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:13:50,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:13:50,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:13:50,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:13:50,264 INFO L87 Difference]: Start difference. First operand 19736 states and 60629 transitions. Second operand has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:52,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:13:52,973 INFO L93 Difference]: Finished difference Result 20762 states and 63522 transitions. [2021-10-08 17:13:52,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-08 17:13:52,974 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:13:52,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:13:53,020 INFO L225 Difference]: With dead ends: 20762 [2021-10-08 17:13:53,021 INFO L226 Difference]: Without dead ends: 20678 [2021-10-08 17:13:53,025 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1226.7ms TimeCoverageRelationStatistics Valid=236, Invalid=1486, Unknown=0, NotChecked=0, Total=1722 [2021-10-08 17:13:53,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20678 states. [2021-10-08 17:13:53,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20678 to 19722. [2021-10-08 17:13:53,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19722 states, 19721 states have (on average 3.0722579990872676) internal successors, (60588), 19721 states have internal predecessors, (60588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:53,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19722 states to 19722 states and 60588 transitions. [2021-10-08 17:13:53,429 INFO L78 Accepts]: Start accepts. Automaton has 19722 states and 60588 transitions. Word has length 54 [2021-10-08 17:13:53,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:13:53,430 INFO L470 AbstractCegarLoop]: Abstraction has 19722 states and 60588 transitions. [2021-10-08 17:13:53,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:53,430 INFO L276 IsEmpty]: Start isEmpty. Operand 19722 states and 60588 transitions. [2021-10-08 17:13:53,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:13:53,465 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:13:53,465 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:13:53,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (69)] Forceful destruction successful, exit code 0 [2021-10-08 17:13:53,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:13:53,667 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:13:53,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:13:53,667 INFO L82 PathProgramCache]: Analyzing trace with hash 443046291, now seen corresponding path program 26 times [2021-10-08 17:13:53,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:13:53,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108301773] [2021-10-08 17:13:53,668 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:13:53,669 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:13:53,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:13:53,670 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:13:53,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2021-10-08 17:13:55,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:13:55,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:13:55,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:13:55,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:13:55,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:55,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:13:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:56,824 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:13:56,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108301773] [2021-10-08 17:13:56,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108301773] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:13:56,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:13:56,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-08 17:13:56,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335433839] [2021-10-08 17:13:56,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 17:13:56,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:13:56,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 17:13:56,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:13:56,826 INFO L87 Difference]: Start difference. First operand 19722 states and 60588 transitions. Second operand has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:58,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:13:58,817 INFO L93 Difference]: Finished difference Result 20580 states and 63007 transitions. [2021-10-08 17:13:58,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 17:13:58,818 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:13:58,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:13:58,868 INFO L225 Difference]: With dead ends: 20580 [2021-10-08 17:13:58,868 INFO L226 Difference]: Without dead ends: 20502 [2021-10-08 17:13:58,869 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1106.0ms TimeCoverageRelationStatistics Valid=179, Invalid=1303, Unknown=0, NotChecked=0, Total=1482 [2021-10-08 17:13:58,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20502 states. [2021-10-08 17:13:59,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20502 to 19724. [2021-10-08 17:13:59,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19724 states, 19723 states have (on average 3.072098565127009) internal successors, (60591), 19723 states have internal predecessors, (60591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:59,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19724 states to 19724 states and 60591 transitions. [2021-10-08 17:13:59,341 INFO L78 Accepts]: Start accepts. Automaton has 19724 states and 60591 transitions. Word has length 54 [2021-10-08 17:13:59,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:13:59,342 INFO L470 AbstractCegarLoop]: Abstraction has 19724 states and 60591 transitions. [2021-10-08 17:13:59,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:13:59,342 INFO L276 IsEmpty]: Start isEmpty. Operand 19724 states and 60591 transitions. [2021-10-08 17:13:59,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:13:59,374 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:13:59,374 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:13:59,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (70)] Forceful destruction successful, exit code 0 [2021-10-08 17:13:59,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:13:59,575 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:13:59,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:13:59,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1998297667, now seen corresponding path program 27 times [2021-10-08 17:13:59,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:13:59,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398204376] [2021-10-08 17:13:59,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:13:59,578 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:13:59,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:13:59,579 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:13:59,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2021-10-08 17:14:01,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:14:01,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:14:01,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:14:01,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:14:01,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:01,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:14:02,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:02,572 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:14:02,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398204376] [2021-10-08 17:14:02,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398204376] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:14:02,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:14:02,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-08 17:14:02,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563475946] [2021-10-08 17:14:02,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 17:14:02,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:14:02,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 17:14:02,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:14:02,573 INFO L87 Difference]: Start difference. First operand 19724 states and 60591 transitions. Second operand has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:05,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:14:05,102 INFO L93 Difference]: Finished difference Result 20696 states and 63267 transitions. [2021-10-08 17:14:05,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-08 17:14:05,102 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:14:05,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:14:05,158 INFO L225 Difference]: With dead ends: 20696 [2021-10-08 17:14:05,159 INFO L226 Difference]: Without dead ends: 20622 [2021-10-08 17:14:05,159 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1317.3ms TimeCoverageRelationStatistics Valid=238, Invalid=1568, Unknown=0, NotChecked=0, Total=1806 [2021-10-08 17:14:05,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20622 states. [2021-10-08 17:14:05,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20622 to 19726. [2021-10-08 17:14:05,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19726 states, 19725 states have (on average 3.071939163498099) internal successors, (60594), 19725 states have internal predecessors, (60594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:05,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19726 states to 19726 states and 60594 transitions. [2021-10-08 17:14:05,646 INFO L78 Accepts]: Start accepts. Automaton has 19726 states and 60594 transitions. Word has length 54 [2021-10-08 17:14:05,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:14:05,646 INFO L470 AbstractCegarLoop]: Abstraction has 19726 states and 60594 transitions. [2021-10-08 17:14:05,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:05,646 INFO L276 IsEmpty]: Start isEmpty. Operand 19726 states and 60594 transitions. [2021-10-08 17:14:05,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:14:05,678 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:14:05,678 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:14:05,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2021-10-08 17:14:05,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:14:05,879 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:14:05,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:14:05,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1972195631, now seen corresponding path program 28 times [2021-10-08 17:14:05,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:14:05,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394523522] [2021-10-08 17:14:05,881 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:14:05,881 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:14:05,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:14:05,883 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:14:05,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2021-10-08 17:14:07,398 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:14:07,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:14:07,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:14:07,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:14:07,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:07,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:14:08,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:08,844 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:14:08,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394523522] [2021-10-08 17:14:08,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394523522] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:14:08,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:14:08,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-08 17:14:08,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92971239] [2021-10-08 17:14:08,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 17:14:08,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:14:08,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 17:14:08,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:14:08,845 INFO L87 Difference]: Start difference. First operand 19726 states and 60594 transitions. Second operand has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:11,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:14:11,465 INFO L93 Difference]: Finished difference Result 20604 states and 63061 transitions. [2021-10-08 17:14:11,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-08 17:14:11,466 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:14:11,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:14:11,512 INFO L225 Difference]: With dead ends: 20604 [2021-10-08 17:14:11,513 INFO L226 Difference]: Without dead ends: 20514 [2021-10-08 17:14:11,513 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1424.7ms TimeCoverageRelationStatistics Valid=245, Invalid=1647, Unknown=0, NotChecked=0, Total=1892 [2021-10-08 17:14:11,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20514 states. [2021-10-08 17:14:11,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20514 to 19690. [2021-10-08 17:14:11,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19690 states, 19689 states have (on average 3.07227385849967) internal successors, (60490), 19689 states have internal predecessors, (60490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:12,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19690 states to 19690 states and 60490 transitions. [2021-10-08 17:14:12,001 INFO L78 Accepts]: Start accepts. Automaton has 19690 states and 60490 transitions. Word has length 54 [2021-10-08 17:14:12,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:14:12,001 INFO L470 AbstractCegarLoop]: Abstraction has 19690 states and 60490 transitions. [2021-10-08 17:14:12,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:12,002 INFO L276 IsEmpty]: Start isEmpty. Operand 19690 states and 60490 transitions. [2021-10-08 17:14:12,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:14:12,033 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:14:12,033 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:14:12,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (72)] Forceful destruction successful, exit code 0 [2021-10-08 17:14:12,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:14:12,234 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:14:12,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:14:12,235 INFO L82 PathProgramCache]: Analyzing trace with hash -2050104653, now seen corresponding path program 29 times [2021-10-08 17:14:12,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:14:12,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588998235] [2021-10-08 17:14:12,237 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:14:12,237 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:14:12,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:14:12,238 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:14:12,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2021-10-08 17:14:13,894 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:14:13,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:14:13,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:14:13,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:14:14,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:14,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:14:15,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:15,069 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:14:15,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588998235] [2021-10-08 17:14:15,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588998235] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:14:15,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:14:15,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:14:15,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298791530] [2021-10-08 17:14:15,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:14:15,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:14:15,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:14:15,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:14:15,071 INFO L87 Difference]: Start difference. First operand 19690 states and 60490 transitions. Second operand has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:17,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:14:17,976 INFO L93 Difference]: Finished difference Result 23050 states and 69595 transitions. [2021-10-08 17:14:17,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-08 17:14:17,977 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:14:17,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:14:18,025 INFO L225 Difference]: With dead ends: 23050 [2021-10-08 17:14:18,026 INFO L226 Difference]: Without dead ends: 22404 [2021-10-08 17:14:18,026 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1330.6ms TimeCoverageRelationStatistics Valid=270, Invalid=1800, Unknown=0, NotChecked=0, Total=2070 [2021-10-08 17:14:18,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22404 states. [2021-10-08 17:14:18,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22404 to 19626. [2021-10-08 17:14:18,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19626 states, 19625 states have (on average 3.059057324840764) internal successors, (60034), 19625 states have internal predecessors, (60034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:18,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19626 states to 19626 states and 60034 transitions. [2021-10-08 17:14:18,513 INFO L78 Accepts]: Start accepts. Automaton has 19626 states and 60034 transitions. Word has length 54 [2021-10-08 17:14:18,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:14:18,514 INFO L470 AbstractCegarLoop]: Abstraction has 19626 states and 60034 transitions. [2021-10-08 17:14:18,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:18,514 INFO L276 IsEmpty]: Start isEmpty. Operand 19626 states and 60034 transitions. [2021-10-08 17:14:18,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:14:18,544 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:14:18,544 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:14:18,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2021-10-08 17:14:18,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:14:18,751 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:14:18,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:14:18,752 INFO L82 PathProgramCache]: Analyzing trace with hash -804240873, now seen corresponding path program 30 times [2021-10-08 17:14:18,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:14:18,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33349334] [2021-10-08 17:14:18,753 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:14:18,753 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:14:18,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:14:18,754 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:14:18,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2021-10-08 17:14:20,468 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:14:20,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:14:20,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:14:20,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:14:20,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:20,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:14:21,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:21,643 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:14:21,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33349334] [2021-10-08 17:14:21,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33349334] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:14:21,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:14:21,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:14:21,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890036464] [2021-10-08 17:14:21,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:14:21,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:14:21,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:14:21,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:14:21,645 INFO L87 Difference]: Start difference. First operand 19626 states and 60034 transitions. Second operand has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:23,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:14:23,351 INFO L93 Difference]: Finished difference Result 21132 states and 64221 transitions. [2021-10-08 17:14:23,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-08 17:14:23,351 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:14:23,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:14:23,396 INFO L225 Difference]: With dead ends: 21132 [2021-10-08 17:14:23,396 INFO L226 Difference]: Without dead ends: 20494 [2021-10-08 17:14:23,396 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 938.7ms TimeCoverageRelationStatistics Valid=146, Invalid=976, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 17:14:23,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20494 states. [2021-10-08 17:14:23,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20494 to 19186. [2021-10-08 17:14:23,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19186 states, 19185 states have (on average 3.060620276257493) internal successors, (58718), 19185 states have internal predecessors, (58718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:23,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19186 states to 19186 states and 58718 transitions. [2021-10-08 17:14:23,918 INFO L78 Accepts]: Start accepts. Automaton has 19186 states and 58718 transitions. Word has length 54 [2021-10-08 17:14:23,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:14:23,918 INFO L470 AbstractCegarLoop]: Abstraction has 19186 states and 58718 transitions. [2021-10-08 17:14:23,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:23,918 INFO L276 IsEmpty]: Start isEmpty. Operand 19186 states and 58718 transitions. [2021-10-08 17:14:23,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:14:23,948 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:14:23,948 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:14:23,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (74)] Forceful destruction successful, exit code 0 [2021-10-08 17:14:24,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:14:24,150 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:14:24,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:14:24,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1236413207, now seen corresponding path program 31 times [2021-10-08 17:14:24,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:14:24,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658510466] [2021-10-08 17:14:24,151 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:14:24,151 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:14:24,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:14:24,152 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:14:24,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2021-10-08 17:14:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:14:25,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:14:25,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:14:26,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:26,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:14:27,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:27,253 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:14:27,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658510466] [2021-10-08 17:14:27,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658510466] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:14:27,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:14:27,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:14:27,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663965034] [2021-10-08 17:14:27,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:14:27,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:14:27,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:14:27,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:14:27,255 INFO L87 Difference]: Start difference. First operand 19186 states and 58718 transitions. Second operand has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:30,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:14:30,605 INFO L93 Difference]: Finished difference Result 20632 states and 62869 transitions. [2021-10-08 17:14:30,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-08 17:14:30,606 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:14:30,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:14:30,699 INFO L225 Difference]: With dead ends: 20632 [2021-10-08 17:14:30,699 INFO L226 Difference]: Without dead ends: 20336 [2021-10-08 17:14:30,700 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1738.2ms TimeCoverageRelationStatistics Valid=257, Invalid=1723, Unknown=0, NotChecked=0, Total=1980 [2021-10-08 17:14:30,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20336 states. [2021-10-08 17:14:31,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20336 to 18856. [2021-10-08 17:14:31,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18856 states, 18855 states have (on average 3.066613630336781) internal successors, (57821), 18855 states have internal predecessors, (57821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:31,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18856 states to 18856 states and 57821 transitions. [2021-10-08 17:14:31,568 INFO L78 Accepts]: Start accepts. Automaton has 18856 states and 57821 transitions. Word has length 54 [2021-10-08 17:14:31,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:14:31,568 INFO L470 AbstractCegarLoop]: Abstraction has 18856 states and 57821 transitions. [2021-10-08 17:14:31,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:31,568 INFO L276 IsEmpty]: Start isEmpty. Operand 18856 states and 57821 transitions. [2021-10-08 17:14:31,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:14:31,601 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:14:31,601 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:14:31,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (75)] Forceful destruction successful, exit code 0 [2021-10-08 17:14:31,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:14:31,802 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:14:31,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:14:31,803 INFO L82 PathProgramCache]: Analyzing trace with hash -380192019, now seen corresponding path program 32 times [2021-10-08 17:14:31,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:14:31,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139126929] [2021-10-08 17:14:31,804 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:14:31,805 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:14:31,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:14:31,806 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:14:31,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2021-10-08 17:14:33,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:14:33,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:14:33,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:14:33,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:14:33,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:33,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:14:34,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:34,779 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:14:34,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139126929] [2021-10-08 17:14:34,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139126929] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:14:34,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:14:34,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:14:34,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160929259] [2021-10-08 17:14:34,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:14:34,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:14:34,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:14:34,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:14:34,781 INFO L87 Difference]: Start difference. First operand 18856 states and 57821 transitions. Second operand has 23 states, 23 states have (on average 4.173913043478261) internal successors, (96), 22 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:38,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:14:38,821 INFO L93 Difference]: Finished difference Result 20772 states and 63167 transitions. [2021-10-08 17:14:38,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-08 17:14:38,821 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.173913043478261) internal successors, (96), 22 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:14:38,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:14:38,873 INFO L225 Difference]: With dead ends: 20772 [2021-10-08 17:14:38,874 INFO L226 Difference]: Without dead ends: 20502 [2021-10-08 17:14:38,874 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1937.1ms TimeCoverageRelationStatistics Valid=315, Invalid=2337, Unknown=0, NotChecked=0, Total=2652 [2021-10-08 17:14:38,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20502 states. [2021-10-08 17:14:39,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20502 to 18856. [2021-10-08 17:14:39,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18856 states, 18855 states have (on average 3.065765049058605) internal successors, (57805), 18855 states have internal predecessors, (57805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:39,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18856 states to 18856 states and 57805 transitions. [2021-10-08 17:14:39,503 INFO L78 Accepts]: Start accepts. Automaton has 18856 states and 57805 transitions. Word has length 54 [2021-10-08 17:14:39,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:14:39,503 INFO L470 AbstractCegarLoop]: Abstraction has 18856 states and 57805 transitions. [2021-10-08 17:14:39,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.173913043478261) internal successors, (96), 22 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:39,503 INFO L276 IsEmpty]: Start isEmpty. Operand 18856 states and 57805 transitions. [2021-10-08 17:14:39,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:14:39,548 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:14:39,548 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:14:39,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (76)] Ended with exit code 0 [2021-10-08 17:14:39,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:14:39,761 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:14:39,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:14:39,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1355739691, now seen corresponding path program 33 times [2021-10-08 17:14:39,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:14:39,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993208814] [2021-10-08 17:14:39,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:14:39,763 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:14:39,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:14:39,764 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:14:39,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2021-10-08 17:14:41,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:14:41,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:14:41,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:14:41,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:14:41,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:41,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:14:42,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:42,720 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:14:42,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993208814] [2021-10-08 17:14:42,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993208814] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:14:42,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:14:42,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:14:42,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530203851] [2021-10-08 17:14:42,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:14:42,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:14:42,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:14:42,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:14:42,722 INFO L87 Difference]: Start difference. First operand 18856 states and 57805 transitions. Second operand has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:46,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:14:46,822 INFO L93 Difference]: Finished difference Result 20854 states and 63538 transitions. [2021-10-08 17:14:46,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-08 17:14:46,823 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:14:46,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:14:46,875 INFO L225 Difference]: With dead ends: 20854 [2021-10-08 17:14:46,875 INFO L226 Difference]: Without dead ends: 20590 [2021-10-08 17:14:46,876 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1880.8ms TimeCoverageRelationStatistics Valid=321, Invalid=2129, Unknown=0, NotChecked=0, Total=2450 [2021-10-08 17:14:46,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20590 states. [2021-10-08 17:14:47,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20590 to 18810. [2021-10-08 17:14:47,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18810 states, 18809 states have (on average 3.0670423733319154) internal successors, (57688), 18809 states have internal predecessors, (57688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:47,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18810 states to 18810 states and 57688 transitions. [2021-10-08 17:14:47,287 INFO L78 Accepts]: Start accepts. Automaton has 18810 states and 57688 transitions. Word has length 54 [2021-10-08 17:14:47,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:14:47,287 INFO L470 AbstractCegarLoop]: Abstraction has 18810 states and 57688 transitions. [2021-10-08 17:14:47,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:47,287 INFO L276 IsEmpty]: Start isEmpty. Operand 18810 states and 57688 transitions. [2021-10-08 17:14:47,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:14:47,454 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:14:47,454 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:14:47,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2021-10-08 17:14:47,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:14:47,655 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:14:47,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:14:47,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1700417223, now seen corresponding path program 34 times [2021-10-08 17:14:47,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:14:47,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900455895] [2021-10-08 17:14:47,657 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:14:47,657 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:14:47,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:14:47,660 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:14:47,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2021-10-08 17:14:49,510 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:14:49,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:14:49,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:14:49,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:14:49,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:49,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:14:50,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:50,710 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:14:50,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900455895] [2021-10-08 17:14:50,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900455895] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:14:50,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:14:50,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:14:50,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449885073] [2021-10-08 17:14:50,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:14:50,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:14:50,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:14:50,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:14:50,713 INFO L87 Difference]: Start difference. First operand 18810 states and 57688 transitions. Second operand has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:53,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:14:53,156 INFO L93 Difference]: Finished difference Result 20136 states and 61405 transitions. [2021-10-08 17:14:53,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-08 17:14:53,157 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:14:53,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:14:53,210 INFO L225 Difference]: With dead ends: 20136 [2021-10-08 17:14:53,210 INFO L226 Difference]: Without dead ends: 19796 [2021-10-08 17:14:53,211 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1124.8ms TimeCoverageRelationStatistics Valid=171, Invalid=1235, Unknown=0, NotChecked=0, Total=1406 [2021-10-08 17:14:53,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19796 states. [2021-10-08 17:14:53,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19796 to 18540. [2021-10-08 17:14:53,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18540 states, 18539 states have (on average 3.073035223043314) internal successors, (56971), 18539 states have internal predecessors, (56971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18540 states to 18540 states and 56971 transitions. [2021-10-08 17:14:53,612 INFO L78 Accepts]: Start accepts. Automaton has 18540 states and 56971 transitions. Word has length 54 [2021-10-08 17:14:53,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:14:53,612 INFO L470 AbstractCegarLoop]: Abstraction has 18540 states and 56971 transitions. [2021-10-08 17:14:53,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:53,612 INFO L276 IsEmpty]: Start isEmpty. Operand 18540 states and 56971 transitions. [2021-10-08 17:14:53,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:14:53,648 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:14:53,648 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:14:53,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (78)] Ended with exit code 0 [2021-10-08 17:14:53,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:14:53,849 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:14:53,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:14:53,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1074863171, now seen corresponding path program 35 times [2021-10-08 17:14:53,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:14:53,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705426189] [2021-10-08 17:14:53,851 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:14:53,852 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:14:53,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:14:53,853 INFO L229 MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:14:53,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2021-10-08 17:14:55,836 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:14:55,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:14:55,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-08 17:14:55,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:14:56,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:56,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:14:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:56,305 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:14:56,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705426189] [2021-10-08 17:14:56,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705426189] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:14:56,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:14:56,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-08 17:14:56,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016995133] [2021-10-08 17:14:56,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-08 17:14:56,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:14:56,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-08 17:14:56,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-10-08 17:14:56,307 INFO L87 Difference]: Start difference. First operand 18540 states and 56971 transitions. Second operand has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 13 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:57,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:14:57,529 INFO L93 Difference]: Finished difference Result 23164 states and 70221 transitions. [2021-10-08 17:14:57,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-08 17:14:57,530 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 13 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:14:57,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:14:57,593 INFO L225 Difference]: With dead ends: 23164 [2021-10-08 17:14:57,593 INFO L226 Difference]: Without dead ends: 22880 [2021-10-08 17:14:57,594 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 312.5ms TimeCoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2021-10-08 17:14:57,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22880 states. [2021-10-08 17:14:58,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22880 to 18312. [2021-10-08 17:14:58,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18312 states, 18311 states have (on average 3.0775490142537274) internal successors, (56353), 18311 states have internal predecessors, (56353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:58,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18312 states to 18312 states and 56353 transitions. [2021-10-08 17:14:58,142 INFO L78 Accepts]: Start accepts. Automaton has 18312 states and 56353 transitions. Word has length 54 [2021-10-08 17:14:58,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:14:58,142 INFO L470 AbstractCegarLoop]: Abstraction has 18312 states and 56353 transitions. [2021-10-08 17:14:58,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 13 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:14:58,143 INFO L276 IsEmpty]: Start isEmpty. Operand 18312 states and 56353 transitions. [2021-10-08 17:14:58,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:14:58,175 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:14:58,175 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:14:58,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (79)] Ended with exit code 0 [2021-10-08 17:14:58,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:14:58,376 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:14:58,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:14:58,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1050481077, now seen corresponding path program 1 times [2021-10-08 17:14:58,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:14:58,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490261728] [2021-10-08 17:14:58,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:14:58,377 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:14:58,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:14:58,378 INFO L229 MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:14:58,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2021-10-08 17:15:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:15:00,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:15:00,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:15:00,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:15:00,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:15:01,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:15:01,799 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:15:01,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490261728] [2021-10-08 17:15:01,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490261728] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:15:01,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:15:01,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:15:01,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655316768] [2021-10-08 17:15:01,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:15:01,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:15:01,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:15:01,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:15:01,801 INFO L87 Difference]: Start difference. First operand 18312 states and 56353 transitions. Second operand has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:15:19,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:15:19,288 INFO L93 Difference]: Finished difference Result 24448 states and 73394 transitions. [2021-10-08 17:15:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-10-08 17:15:19,289 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:15:19,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:15:19,355 INFO L225 Difference]: With dead ends: 24448 [2021-10-08 17:15:19,355 INFO L226 Difference]: Without dead ends: 23272 [2021-10-08 17:15:19,356 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1623 ImplicationChecksByTransitivity, 12396.6ms TimeCoverageRelationStatistics Valid=719, Invalid=5443, Unknown=0, NotChecked=0, Total=6162 [2021-10-08 17:15:19,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23272 states. [2021-10-08 17:15:19,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23272 to 19770. [2021-10-08 17:15:19,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19770 states, 19769 states have (on average 3.062319793616268) internal successors, (60539), 19769 states have internal predecessors, (60539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:15:19,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19770 states to 19770 states and 60539 transitions. [2021-10-08 17:15:19,802 INFO L78 Accepts]: Start accepts. Automaton has 19770 states and 60539 transitions. Word has length 54 [2021-10-08 17:15:19,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:15:19,802 INFO L470 AbstractCegarLoop]: Abstraction has 19770 states and 60539 transitions. [2021-10-08 17:15:19,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:15:19,803 INFO L276 IsEmpty]: Start isEmpty. Operand 19770 states and 60539 transitions. [2021-10-08 17:15:19,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:15:19,954 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:15:19,954 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:15:19,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (80)] Forceful destruction successful, exit code 0 [2021-10-08 17:15:20,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:15:20,160 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:15:20,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:15:20,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1113463825, now seen corresponding path program 2 times [2021-10-08 17:15:20,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:15:20,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836047135] [2021-10-08 17:15:20,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:15:20,162 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:15:20,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:15:20,163 INFO L229 MonitoredProcess]: Starting monitored process 81 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:15:20,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2021-10-08 17:15:22,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:15:22,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:15:22,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:15:22,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:15:22,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:15:22,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:15:23,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:15:23,975 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:15:23,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836047135] [2021-10-08 17:15:23,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836047135] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:15:23,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:15:23,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:15:23,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673470212] [2021-10-08 17:15:23,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:15:23,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:15:23,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:15:23,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:15:23,977 INFO L87 Difference]: Start difference. First operand 19770 states and 60539 transitions. Second operand has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:15:42,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:15:42,605 INFO L93 Difference]: Finished difference Result 25400 states and 75774 transitions. [2021-10-08 17:15:42,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-10-08 17:15:42,606 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:15:42,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:15:42,666 INFO L225 Difference]: With dead ends: 25400 [2021-10-08 17:15:42,666 INFO L226 Difference]: Without dead ends: 24812 [2021-10-08 17:15:42,667 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1439 ImplicationChecksByTransitivity, 13096.7ms TimeCoverageRelationStatistics Valid=697, Invalid=5155, Unknown=0, NotChecked=0, Total=5852 [2021-10-08 17:15:42,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24812 states. [2021-10-08 17:15:43,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24812 to 19560. [2021-10-08 17:15:43,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19560 states, 19559 states have (on average 3.05956337236055) internal successors, (59842), 19559 states have internal predecessors, (59842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:15:43,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19560 states to 19560 states and 59842 transitions. [2021-10-08 17:15:43,185 INFO L78 Accepts]: Start accepts. Automaton has 19560 states and 59842 transitions. Word has length 54 [2021-10-08 17:15:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:15:43,185 INFO L470 AbstractCegarLoop]: Abstraction has 19560 states and 59842 transitions. [2021-10-08 17:15:43,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:15:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 19560 states and 59842 transitions. [2021-10-08 17:15:43,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:15:43,225 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:15:43,225 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:15:43,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (81)] Forceful destruction successful, exit code 0 [2021-10-08 17:15:43,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:15:43,426 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:15:43,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:15:43,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1144999149, now seen corresponding path program 3 times [2021-10-08 17:15:43,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:15:43,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144703618] [2021-10-08 17:15:43,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:15:43,429 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:15:43,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:15:43,430 INFO L229 MonitoredProcess]: Starting monitored process 82 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:15:43,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2021-10-08 17:15:45,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:15:45,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:15:45,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:15:45,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:15:46,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:15:46,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:15:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:15:47,490 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:15:47,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144703618] [2021-10-08 17:15:47,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144703618] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:15:47,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:15:47,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:15:47,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038873323] [2021-10-08 17:15:47,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:15:47,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:15:47,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:15:47,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:15:47,492 INFO L87 Difference]: Start difference. First operand 19560 states and 59842 transitions. Second operand has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:15:53,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:15:53,235 INFO L93 Difference]: Finished difference Result 23190 states and 69703 transitions. [2021-10-08 17:15:53,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-08 17:15:53,236 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:15:53,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:15:53,475 INFO L225 Difference]: With dead ends: 23190 [2021-10-08 17:15:53,475 INFO L226 Difference]: Without dead ends: 22622 [2021-10-08 17:15:53,476 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 3162.7ms TimeCoverageRelationStatistics Valid=332, Invalid=2118, Unknown=0, NotChecked=0, Total=2450 [2021-10-08 17:15:53,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22622 states. [2021-10-08 17:15:53,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22622 to 19608. [2021-10-08 17:15:53,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19608 states, 19607 states have (on average 3.0588055286377314) internal successors, (59974), 19607 states have internal predecessors, (59974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:15:53,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19608 states to 19608 states and 59974 transitions. [2021-10-08 17:15:53,851 INFO L78 Accepts]: Start accepts. Automaton has 19608 states and 59974 transitions. Word has length 54 [2021-10-08 17:15:53,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:15:53,851 INFO L470 AbstractCegarLoop]: Abstraction has 19608 states and 59974 transitions. [2021-10-08 17:15:53,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:15:53,851 INFO L276 IsEmpty]: Start isEmpty. Operand 19608 states and 59974 transitions. [2021-10-08 17:15:53,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:15:53,882 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:15:53,882 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:15:53,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (82)] Forceful destruction successful, exit code 0 [2021-10-08 17:15:54,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:15:54,083 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:15:54,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:15:54,084 INFO L82 PathProgramCache]: Analyzing trace with hash 116171885, now seen corresponding path program 4 times [2021-10-08 17:15:54,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:15:54,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426550017] [2021-10-08 17:15:54,085 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:15:54,086 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:15:54,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:15:54,089 INFO L229 MonitoredProcess]: Starting monitored process 83 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:15:54,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2021-10-08 17:15:56,167 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:15:56,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:15:56,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:15:56,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:15:56,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:15:56,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:15:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:15:57,782 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:15:57,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426550017] [2021-10-08 17:15:57,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426550017] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:15:57,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:15:57,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:15:57,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471594668] [2021-10-08 17:15:57,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:15:57,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:15:57,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:15:57,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:15:57,784 INFO L87 Difference]: Start difference. First operand 19608 states and 59974 transitions. Second operand has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:03,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:16:03,116 INFO L93 Difference]: Finished difference Result 22614 states and 67985 transitions. [2021-10-08 17:16:03,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-08 17:16:03,118 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:16:03,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:16:03,172 INFO L225 Difference]: With dead ends: 22614 [2021-10-08 17:16:03,173 INFO L226 Difference]: Without dead ends: 22118 [2021-10-08 17:16:03,173 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 2889.4ms TimeCoverageRelationStatistics Valid=359, Invalid=2503, Unknown=0, NotChecked=0, Total=2862 [2021-10-08 17:16:03,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22118 states. [2021-10-08 17:16:03,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22118 to 19644. [2021-10-08 17:16:03,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19644 states, 19643 states have (on average 3.058341393880772) internal successors, (60075), 19643 states have internal predecessors, (60075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:03,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19644 states to 19644 states and 60075 transitions. [2021-10-08 17:16:03,561 INFO L78 Accepts]: Start accepts. Automaton has 19644 states and 60075 transitions. Word has length 54 [2021-10-08 17:16:03,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:16:03,562 INFO L470 AbstractCegarLoop]: Abstraction has 19644 states and 60075 transitions. [2021-10-08 17:16:03,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:03,562 INFO L276 IsEmpty]: Start isEmpty. Operand 19644 states and 60075 transitions. [2021-10-08 17:16:03,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:16:03,596 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:16:03,596 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:16:03,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (83)] Forceful destruction successful, exit code 0 [2021-10-08 17:16:03,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:16:03,797 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:16:03,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:16:03,798 INFO L82 PathProgramCache]: Analyzing trace with hash -2093491049, now seen corresponding path program 5 times [2021-10-08 17:16:03,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:16:03,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426756073] [2021-10-08 17:16:03,799 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:16:03,800 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:16:03,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:16:03,800 INFO L229 MonitoredProcess]: Starting monitored process 84 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:16:03,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2021-10-08 17:16:05,892 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:16:05,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:16:05,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:16:05,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:16:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:16:06,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:16:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:16:07,395 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:16:07,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426756073] [2021-10-08 17:16:07,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426756073] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:16:07,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:16:07,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:16:07,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054799996] [2021-10-08 17:16:07,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:16:07,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:16:07,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:16:07,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:16:07,397 INFO L87 Difference]: Start difference. First operand 19644 states and 60075 transitions. Second operand has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:18,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:16:18,999 INFO L93 Difference]: Finished difference Result 23162 states and 68615 transitions. [2021-10-08 17:16:19,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-10-08 17:16:19,000 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:16:19,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:16:19,050 INFO L225 Difference]: With dead ends: 23162 [2021-10-08 17:16:19,050 INFO L226 Difference]: Without dead ends: 22742 [2021-10-08 17:16:19,051 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2298 ImplicationChecksByTransitivity, 6111.5ms TimeCoverageRelationStatistics Valid=1043, Invalid=6967, Unknown=0, NotChecked=0, Total=8010 [2021-10-08 17:16:19,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22742 states. [2021-10-08 17:16:19,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22742 to 18298. [2021-10-08 17:16:19,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18298 states, 18297 states have (on average 3.043231130786468) internal successors, (55682), 18297 states have internal predecessors, (55682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:19,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18298 states to 18298 states and 55682 transitions. [2021-10-08 17:16:19,468 INFO L78 Accepts]: Start accepts. Automaton has 18298 states and 55682 transitions. Word has length 54 [2021-10-08 17:16:19,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:16:19,468 INFO L470 AbstractCegarLoop]: Abstraction has 18298 states and 55682 transitions. [2021-10-08 17:16:19,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:19,468 INFO L276 IsEmpty]: Start isEmpty. Operand 18298 states and 55682 transitions. [2021-10-08 17:16:19,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:16:19,496 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:16:19,496 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:16:19,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (84)] Forceful destruction successful, exit code 0 [2021-10-08 17:16:19,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:16:19,697 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:16:19,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:16:19,699 INFO L82 PathProgramCache]: Analyzing trace with hash -277749765, now seen corresponding path program 6 times [2021-10-08 17:16:19,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:16:19,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227987552] [2021-10-08 17:16:19,700 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:16:19,700 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:16:19,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:16:19,701 INFO L229 MonitoredProcess]: Starting monitored process 85 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:16:19,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2021-10-08 17:16:21,788 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:16:21,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:16:21,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:16:21,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:16:22,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:16:22,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:16:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:16:23,389 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:16:23,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227987552] [2021-10-08 17:16:23,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227987552] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:16:23,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:16:23,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:16:23,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560954859] [2021-10-08 17:16:23,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:16:23,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:16:23,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:16:23,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:16:23,390 INFO L87 Difference]: Start difference. First operand 18298 states and 55682 transitions. Second operand has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:33,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:16:33,828 INFO L93 Difference]: Finished difference Result 22472 states and 66509 transitions. [2021-10-08 17:16:33,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-10-08 17:16:33,829 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:16:33,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:16:33,887 INFO L225 Difference]: With dead ends: 22472 [2021-10-08 17:16:33,887 INFO L226 Difference]: Without dead ends: 21958 [2021-10-08 17:16:33,888 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1819 ImplicationChecksByTransitivity, 5306.6ms TimeCoverageRelationStatistics Valid=775, Invalid=5867, Unknown=0, NotChecked=0, Total=6642 [2021-10-08 17:16:33,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21958 states. [2021-10-08 17:16:34,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21958 to 18204. [2021-10-08 17:16:34,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18204 states, 18203 states have (on average 3.0443882876448938) internal successors, (55417), 18203 states have internal predecessors, (55417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:34,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18204 states to 18204 states and 55417 transitions. [2021-10-08 17:16:34,304 INFO L78 Accepts]: Start accepts. Automaton has 18204 states and 55417 transitions. Word has length 54 [2021-10-08 17:16:34,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:16:34,304 INFO L470 AbstractCegarLoop]: Abstraction has 18204 states and 55417 transitions. [2021-10-08 17:16:34,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:34,304 INFO L276 IsEmpty]: Start isEmpty. Operand 18204 states and 55417 transitions. [2021-10-08 17:16:34,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:16:34,343 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:16:34,343 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:16:34,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (85)] Forceful destruction successful, exit code 0 [2021-10-08 17:16:34,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:16:34,558 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:16:34,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:16:34,559 INFO L82 PathProgramCache]: Analyzing trace with hash -861524355, now seen corresponding path program 7 times [2021-10-08 17:16:34,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:16:34,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592632397] [2021-10-08 17:16:34,560 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:16:34,561 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:16:34,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:16:34,562 INFO L229 MonitoredProcess]: Starting monitored process 86 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:16:34,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (86)] Waiting until timeout for monitored process [2021-10-08 17:16:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:16:36,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-08 17:16:36,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:16:36,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:16:36,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:16:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:16:37,181 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:16:37,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592632397] [2021-10-08 17:16:37,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592632397] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:16:37,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:16:37,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-08 17:16:37,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616556217] [2021-10-08 17:16:37,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-08 17:16:37,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:16:37,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-08 17:16:37,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-10-08 17:16:37,183 INFO L87 Difference]: Start difference. First operand 18204 states and 55417 transitions. Second operand has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:38,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:16:38,164 INFO L93 Difference]: Finished difference Result 22188 states and 66595 transitions. [2021-10-08 17:16:38,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 17:16:38,164 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:16:38,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:16:38,246 INFO L225 Difference]: With dead ends: 22188 [2021-10-08 17:16:38,246 INFO L226 Difference]: Without dead ends: 22188 [2021-10-08 17:16:38,246 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 290.7ms TimeCoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2021-10-08 17:16:38,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22188 states. [2021-10-08 17:16:38,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22188 to 18220. [2021-10-08 17:16:38,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18220 states, 18219 states have (on average 3.044349305669905) internal successors, (55465), 18219 states have internal predecessors, (55465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:38,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18220 states to 18220 states and 55465 transitions. [2021-10-08 17:16:38,889 INFO L78 Accepts]: Start accepts. Automaton has 18220 states and 55465 transitions. Word has length 54 [2021-10-08 17:16:38,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:16:38,890 INFO L470 AbstractCegarLoop]: Abstraction has 18220 states and 55465 transitions. [2021-10-08 17:16:38,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:38,890 INFO L276 IsEmpty]: Start isEmpty. Operand 18220 states and 55465 transitions. [2021-10-08 17:16:38,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:16:38,932 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:16:38,932 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:16:38,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (86)] Ended with exit code 0 [2021-10-08 17:16:39,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:16:39,145 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:16:39,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:16:39,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1344324653, now seen corresponding path program 8 times [2021-10-08 17:16:39,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:16:39,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22845723] [2021-10-08 17:16:39,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:16:39,147 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:16:39,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:16:39,149 INFO L229 MonitoredProcess]: Starting monitored process 87 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:16:39,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2021-10-08 17:16:41,296 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:16:41,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:16:41,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:16:41,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:16:41,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:16:41,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:16:43,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:16:43,052 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:16:43,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22845723] [2021-10-08 17:16:43,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22845723] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:16:43,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:16:43,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:16:43,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805697674] [2021-10-08 17:16:43,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:16:43,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:16:43,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:16:43,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:16:43,054 INFO L87 Difference]: Start difference. First operand 18220 states and 55465 transitions. Second operand has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:47,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:16:47,250 INFO L93 Difference]: Finished difference Result 21560 states and 64683 transitions. [2021-10-08 17:16:47,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-08 17:16:47,250 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:16:47,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:16:47,296 INFO L225 Difference]: With dead ends: 21560 [2021-10-08 17:16:47,296 INFO L226 Difference]: Without dead ends: 21156 [2021-10-08 17:16:47,296 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2042.8ms TimeCoverageRelationStatistics Valid=269, Invalid=1537, Unknown=0, NotChecked=0, Total=1806 [2021-10-08 17:16:47,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21156 states. [2021-10-08 17:16:47,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21156 to 18292. [2021-10-08 17:16:47,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18292 states, 18291 states have (on average 3.0438467005631185) internal successors, (55675), 18291 states have internal predecessors, (55675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:47,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18292 states to 18292 states and 55675 transitions. [2021-10-08 17:16:47,762 INFO L78 Accepts]: Start accepts. Automaton has 18292 states and 55675 transitions. Word has length 54 [2021-10-08 17:16:47,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:16:47,762 INFO L470 AbstractCegarLoop]: Abstraction has 18292 states and 55675 transitions. [2021-10-08 17:16:47,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:47,763 INFO L276 IsEmpty]: Start isEmpty. Operand 18292 states and 55675 transitions. [2021-10-08 17:16:47,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:16:47,791 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:16:47,791 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:16:47,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (87)] Forceful destruction successful, exit code 0 [2021-10-08 17:16:47,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:16:47,992 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:16:47,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:16:47,993 INFO L82 PathProgramCache]: Analyzing trace with hash 315497389, now seen corresponding path program 9 times [2021-10-08 17:16:47,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:16:47,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923501758] [2021-10-08 17:16:47,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:16:47,994 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:16:47,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:16:47,995 INFO L229 MonitoredProcess]: Starting monitored process 88 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:16:47,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2021-10-08 17:16:50,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:16:50,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:16:50,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:16:50,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:16:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:16:50,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:16:52,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:16:52,053 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:16:52,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923501758] [2021-10-08 17:16:52,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923501758] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:16:52,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:16:52,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:16:52,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708089959] [2021-10-08 17:16:52,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:16:52,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:16:52,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:16:52,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:16:52,055 INFO L87 Difference]: Start difference. First operand 18292 states and 55675 transitions. Second operand has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:54,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:16:54,783 INFO L93 Difference]: Finished difference Result 20316 states and 61316 transitions. [2021-10-08 17:16:54,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-08 17:16:54,784 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:16:54,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:16:54,833 INFO L225 Difference]: With dead ends: 20316 [2021-10-08 17:16:54,834 INFO L226 Difference]: Without dead ends: 20060 [2021-10-08 17:16:54,834 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1622.6ms TimeCoverageRelationStatistics Valid=190, Invalid=1142, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 17:16:54,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20060 states. [2021-10-08 17:16:55,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20060 to 18304. [2021-10-08 17:16:55,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18304 states, 18303 states have (on average 3.043599409932798) internal successors, (55707), 18303 states have internal predecessors, (55707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:55,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18304 states to 18304 states and 55707 transitions. [2021-10-08 17:16:55,433 INFO L78 Accepts]: Start accepts. Automaton has 18304 states and 55707 transitions. Word has length 54 [2021-10-08 17:16:55,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:16:55,433 INFO L470 AbstractCegarLoop]: Abstraction has 18304 states and 55707 transitions. [2021-10-08 17:16:55,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:16:55,434 INFO L276 IsEmpty]: Start isEmpty. Operand 18304 states and 55707 transitions. [2021-10-08 17:16:55,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:16:55,468 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:16:55,468 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:16:55,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (88)] Ended with exit code 0 [2021-10-08 17:16:55,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:16:55,669 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:16:55,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:16:55,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1894165545, now seen corresponding path program 10 times [2021-10-08 17:16:55,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:16:55,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373578767] [2021-10-08 17:16:55,671 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:16:55,672 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:16:55,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:16:55,672 INFO L229 MonitoredProcess]: Starting monitored process 89 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:16:55,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2021-10-08 17:16:57,838 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:16:57,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:16:57,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:16:57,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:16:58,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:16:58,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:16:59,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:16:59,646 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:16:59,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373578767] [2021-10-08 17:16:59,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373578767] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:16:59,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:16:59,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:16:59,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941305919] [2021-10-08 17:16:59,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:16:59,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:16:59,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:16:59,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:16:59,648 INFO L87 Difference]: Start difference. First operand 18304 states and 55707 transitions. Second operand has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:05,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:17:05,219 INFO L93 Difference]: Finished difference Result 21232 states and 63791 transitions. [2021-10-08 17:17:05,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-08 17:17:05,220 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:17:05,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:17:05,267 INFO L225 Difference]: With dead ends: 21232 [2021-10-08 17:17:05,267 INFO L226 Difference]: Without dead ends: 21020 [2021-10-08 17:17:05,268 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 3085.9ms TimeCoverageRelationStatistics Valid=479, Invalid=2713, Unknown=0, NotChecked=0, Total=3192 [2021-10-08 17:17:05,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21020 states. [2021-10-08 17:17:05,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21020 to 18338. [2021-10-08 17:17:05,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18338 states, 18337 states have (on average 3.043027758084747) internal successors, (55800), 18337 states have internal predecessors, (55800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:05,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18338 states to 18338 states and 55800 transitions. [2021-10-08 17:17:05,752 INFO L78 Accepts]: Start accepts. Automaton has 18338 states and 55800 transitions. Word has length 54 [2021-10-08 17:17:05,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:17:05,752 INFO L470 AbstractCegarLoop]: Abstraction has 18338 states and 55800 transitions. [2021-10-08 17:17:05,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:05,752 INFO L276 IsEmpty]: Start isEmpty. Operand 18338 states and 55800 transitions. [2021-10-08 17:17:05,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:17:05,783 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:17:05,783 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:17:05,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (89)] Forceful destruction successful, exit code 0 [2021-10-08 17:17:05,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:17:05,984 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:17:05,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:17:05,985 INFO L82 PathProgramCache]: Analyzing trace with hash -78424261, now seen corresponding path program 11 times [2021-10-08 17:17:05,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:17:05,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703283382] [2021-10-08 17:17:05,986 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:17:05,986 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:17:05,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:17:05,987 INFO L229 MonitoredProcess]: Starting monitored process 90 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:17:05,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2021-10-08 17:17:08,282 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:17:08,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:17:08,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:17:08,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:17:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:08,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:17:10,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:10,167 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:17:10,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703283382] [2021-10-08 17:17:10,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703283382] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:17:10,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:17:10,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:17:10,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021149632] [2021-10-08 17:17:10,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:17:10,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:17:10,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:17:10,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:17:10,171 INFO L87 Difference]: Start difference. First operand 18338 states and 55800 transitions. Second operand has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:16,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:17:16,279 INFO L93 Difference]: Finished difference Result 21302 states and 63840 transitions. [2021-10-08 17:17:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-08 17:17:16,280 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:17:16,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:17:16,335 INFO L225 Difference]: With dead ends: 21302 [2021-10-08 17:17:16,335 INFO L226 Difference]: Without dead ends: 21044 [2021-10-08 17:17:16,336 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 3040.2ms TimeCoverageRelationStatistics Valid=445, Invalid=2525, Unknown=0, NotChecked=0, Total=2970 [2021-10-08 17:17:16,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21044 states. [2021-10-08 17:17:16,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21044 to 18272. [2021-10-08 17:17:16,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18272 states, 18271 states have (on average 3.044551475015051) internal successors, (55627), 18271 states have internal predecessors, (55627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:16,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18272 states to 18272 states and 55627 transitions. [2021-10-08 17:17:16,849 INFO L78 Accepts]: Start accepts. Automaton has 18272 states and 55627 transitions. Word has length 54 [2021-10-08 17:17:16,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:17:16,850 INFO L470 AbstractCegarLoop]: Abstraction has 18272 states and 55627 transitions. [2021-10-08 17:17:16,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 22 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 18272 states and 55627 transitions. [2021-10-08 17:17:16,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:17:16,879 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:17:16,879 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:17:16,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (90)] Forceful destruction successful, exit code 0 [2021-10-08 17:17:17,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:17:17,080 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:17:17,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:17:17,082 INFO L82 PathProgramCache]: Analyzing trace with hash -309029272, now seen corresponding path program 1 times [2021-10-08 17:17:17,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:17:17,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423734574] [2021-10-08 17:17:17,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:17:17,083 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:17:17,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:17:17,084 INFO L229 MonitoredProcess]: Starting monitored process 91 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:17:17,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2021-10-08 17:17:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:17:19,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-08 17:17:19,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:17:19,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:19,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:17:20,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:20,200 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:17:20,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423734574] [2021-10-08 17:17:20,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423734574] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:17:20,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:17:20,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2021-10-08 17:17:20,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103925796] [2021-10-08 17:17:20,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-08 17:17:20,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:17:20,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-08 17:17:20,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-10-08 17:17:20,201 INFO L87 Difference]: Start difference. First operand 18272 states and 55627 transitions. Second operand has 20 states, 20 states have (on average 4.1) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:22,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:17:22,494 INFO L93 Difference]: Finished difference Result 19770 states and 60086 transitions. [2021-10-08 17:17:22,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-08 17:17:22,494 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:17:22,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:17:22,540 INFO L225 Difference]: With dead ends: 19770 [2021-10-08 17:17:22,540 INFO L226 Difference]: Without dead ends: 19770 [2021-10-08 17:17:22,541 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 917.1ms TimeCoverageRelationStatistics Valid=223, Invalid=1109, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 17:17:22,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19770 states. [2021-10-08 17:17:22,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19770 to 18392. [2021-10-08 17:17:23,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18392 states, 18391 states have (on average 3.044369528573759) internal successors, (55989), 18391 states have internal predecessors, (55989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:23,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18392 states to 18392 states and 55989 transitions. [2021-10-08 17:17:23,073 INFO L78 Accepts]: Start accepts. Automaton has 18392 states and 55989 transitions. Word has length 54 [2021-10-08 17:17:23,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:17:23,074 INFO L470 AbstractCegarLoop]: Abstraction has 18392 states and 55989 transitions. [2021-10-08 17:17:23,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:23,074 INFO L276 IsEmpty]: Start isEmpty. Operand 18392 states and 55989 transitions. [2021-10-08 17:17:23,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:17:23,107 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:17:23,107 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:17:23,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (91)] Forceful destruction successful, exit code 0 [2021-10-08 17:17:23,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:17:23,308 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:17:23,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:17:23,308 INFO L82 PathProgramCache]: Analyzing trace with hash -348451318, now seen corresponding path program 2 times [2021-10-08 17:17:23,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:17:23,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974926915] [2021-10-08 17:17:23,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:17:23,309 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:17:23,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:17:23,310 INFO L229 MonitoredProcess]: Starting monitored process 92 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:17:23,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (92)] Waiting until timeout for monitored process [2021-10-08 17:17:25,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:17:25,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:17:25,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-08 17:17:25,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:17:26,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:26,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:17:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:26,493 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:17:26,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974926915] [2021-10-08 17:17:26,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974926915] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:17:26,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:17:26,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-10-08 17:17:26,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138728601] [2021-10-08 17:17:26,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-08 17:17:26,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:17:26,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-08 17:17:26,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-10-08 17:17:26,495 INFO L87 Difference]: Start difference. First operand 18392 states and 55989 transitions. Second operand has 18 states, 18 states have (on average 4.277777777777778) internal successors, (77), 17 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:28,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:17:28,786 INFO L93 Difference]: Finished difference Result 19730 states and 60000 transitions. [2021-10-08 17:17:28,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 17:17:28,787 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.277777777777778) internal successors, (77), 17 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:17:28,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:17:28,835 INFO L225 Difference]: With dead ends: 19730 [2021-10-08 17:17:28,835 INFO L226 Difference]: Without dead ends: 19730 [2021-10-08 17:17:28,836 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 882.8ms TimeCoverageRelationStatistics Valid=187, Invalid=935, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 17:17:28,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19730 states. [2021-10-08 17:17:29,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19730 to 18416. [2021-10-08 17:17:29,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18416 states, 18415 states have (on average 3.0443117024165085) internal successors, (56061), 18415 states have internal predecessors, (56061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:29,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18416 states to 18416 states and 56061 transitions. [2021-10-08 17:17:29,419 INFO L78 Accepts]: Start accepts. Automaton has 18416 states and 56061 transitions. Word has length 54 [2021-10-08 17:17:29,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:17:29,419 INFO L470 AbstractCegarLoop]: Abstraction has 18416 states and 56061 transitions. [2021-10-08 17:17:29,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.277777777777778) internal successors, (77), 17 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:29,419 INFO L276 IsEmpty]: Start isEmpty. Operand 18416 states and 56061 transitions. [2021-10-08 17:17:29,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:17:29,447 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:17:29,448 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:17:29,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (92)] Forceful destruction successful, exit code 0 [2021-10-08 17:17:29,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:17:29,649 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:17:29,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:17:29,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1714455672, now seen corresponding path program 3 times [2021-10-08 17:17:29,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:17:29,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003585206] [2021-10-08 17:17:29,651 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:17:29,651 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:17:29,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:17:29,652 INFO L229 MonitoredProcess]: Starting monitored process 93 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:17:29,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2021-10-08 17:17:31,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:17:31,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:17:31,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:17:31,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:17:32,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:32,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:17:33,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:33,275 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:17:33,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003585206] [2021-10-08 17:17:33,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003585206] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:17:33,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:17:33,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:17:33,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847065835] [2021-10-08 17:17:33,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:17:33,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:17:33,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:17:33,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:17:33,276 INFO L87 Difference]: Start difference. First operand 18416 states and 56061 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:35,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:17:35,707 INFO L93 Difference]: Finished difference Result 19844 states and 60126 transitions. [2021-10-08 17:17:35,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 17:17:35,707 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:17:35,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:17:35,753 INFO L225 Difference]: With dead ends: 19844 [2021-10-08 17:17:35,753 INFO L226 Difference]: Without dead ends: 19502 [2021-10-08 17:17:35,753 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1510.6ms TimeCoverageRelationStatistics Valid=182, Invalid=1150, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 17:17:35,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19502 states. [2021-10-08 17:17:36,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19502 to 18424. [2021-10-08 17:17:36,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18424 states, 18423 states have (on average 3.0434239808934485) internal successors, (56069), 18423 states have internal predecessors, (56069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:36,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18424 states to 18424 states and 56069 transitions. [2021-10-08 17:17:36,110 INFO L78 Accepts]: Start accepts. Automaton has 18424 states and 56069 transitions. Word has length 54 [2021-10-08 17:17:36,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:17:36,110 INFO L470 AbstractCegarLoop]: Abstraction has 18424 states and 56069 transitions. [2021-10-08 17:17:36,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:36,110 INFO L276 IsEmpty]: Start isEmpty. Operand 18424 states and 56069 transitions. [2021-10-08 17:17:36,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:17:36,290 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:17:36,290 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:17:36,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (93)] Forceful destruction successful, exit code 0 [2021-10-08 17:17:36,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:17:36,491 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:17:36,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:17:36,492 INFO L82 PathProgramCache]: Analyzing trace with hash 101285612, now seen corresponding path program 4 times [2021-10-08 17:17:36,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:17:36,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453097000] [2021-10-08 17:17:36,493 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:17:36,493 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:17:36,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:17:36,494 INFO L229 MonitoredProcess]: Starting monitored process 94 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:17:36,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (94)] Waiting until timeout for monitored process [2021-10-08 17:17:38,844 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:17:38,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:17:38,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:17:38,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:17:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:39,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:17:40,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:40,056 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:17:40,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453097000] [2021-10-08 17:17:40,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453097000] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:17:40,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:17:40,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:17:40,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475601380] [2021-10-08 17:17:40,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:17:40,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:17:40,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:17:40,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:17:40,058 INFO L87 Difference]: Start difference. First operand 18424 states and 56069 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:42,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:17:42,488 INFO L93 Difference]: Finished difference Result 19466 states and 59127 transitions. [2021-10-08 17:17:42,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-08 17:17:42,489 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:17:42,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:17:42,534 INFO L225 Difference]: With dead ends: 19466 [2021-10-08 17:17:42,534 INFO L226 Difference]: Without dead ends: 19186 [2021-10-08 17:17:42,535 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1192.2ms TimeCoverageRelationStatistics Valid=179, Invalid=1153, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 17:17:42,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19186 states. [2021-10-08 17:17:42,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19186 to 18408. [2021-10-08 17:17:42,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18408 states, 18407 states have (on average 3.0438963437822566) internal successors, (56029), 18407 states have internal predecessors, (56029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:42,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18408 states to 18408 states and 56029 transitions. [2021-10-08 17:17:42,900 INFO L78 Accepts]: Start accepts. Automaton has 18408 states and 56029 transitions. Word has length 54 [2021-10-08 17:17:42,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:17:42,900 INFO L470 AbstractCegarLoop]: Abstraction has 18408 states and 56029 transitions. [2021-10-08 17:17:42,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:42,900 INFO L276 IsEmpty]: Start isEmpty. Operand 18408 states and 56029 transitions. [2021-10-08 17:17:42,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:17:42,932 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:17:42,932 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:17:42,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (94)] Forceful destruction successful, exit code 0 [2021-10-08 17:17:43,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:17:43,133 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:17:43,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:17:43,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1878230538, now seen corresponding path program 5 times [2021-10-08 17:17:43,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:17:43,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291104736] [2021-10-08 17:17:43,135 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:17:43,135 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:17:43,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:17:43,136 INFO L229 MonitoredProcess]: Starting monitored process 95 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:17:43,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (95)] Waiting until timeout for monitored process [2021-10-08 17:17:45,551 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:17:45,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:17:45,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:17:45,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:17:46,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:46,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:17:46,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:46,852 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:17:46,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291104736] [2021-10-08 17:17:46,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291104736] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:17:46,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:17:46,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:17:46,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205977433] [2021-10-08 17:17:46,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:17:46,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:17:46,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:17:46,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:17:46,853 INFO L87 Difference]: Start difference. First operand 18408 states and 56029 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:48,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:17:48,803 INFO L93 Difference]: Finished difference Result 19464 states and 59113 transitions. [2021-10-08 17:17:48,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 17:17:48,804 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:17:48,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:17:48,997 INFO L225 Difference]: With dead ends: 19464 [2021-10-08 17:17:48,998 INFO L226 Difference]: Without dead ends: 19064 [2021-10-08 17:17:48,998 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 961.1ms TimeCoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2021-10-08 17:17:49,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19064 states. [2021-10-08 17:17:49,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19064 to 18400. [2021-10-08 17:17:49,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18400 states, 18399 states have (on average 3.043915430186423) internal successors, (56005), 18399 states have internal predecessors, (56005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:49,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18400 states to 18400 states and 56005 transitions. [2021-10-08 17:17:49,363 INFO L78 Accepts]: Start accepts. Automaton has 18400 states and 56005 transitions. Word has length 54 [2021-10-08 17:17:49,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:17:49,363 INFO L470 AbstractCegarLoop]: Abstraction has 18400 states and 56005 transitions. [2021-10-08 17:17:49,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:49,363 INFO L276 IsEmpty]: Start isEmpty. Operand 18400 states and 56005 transitions. [2021-10-08 17:17:49,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:17:49,396 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:17:49,396 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:17:49,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (95)] Forceful destruction successful, exit code 0 [2021-10-08 17:17:49,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:17:49,598 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:17:49,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:17:49,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1471015000, now seen corresponding path program 6 times [2021-10-08 17:17:49,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:17:49,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194562118] [2021-10-08 17:17:49,600 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:17:49,600 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:17:49,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:17:49,601 INFO L229 MonitoredProcess]: Starting monitored process 96 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:17:49,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2021-10-08 17:17:52,115 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:17:52,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:17:52,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:17:52,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:17:52,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:52,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:17:53,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:53,413 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:17:53,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194562118] [2021-10-08 17:17:53,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194562118] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:17:53,414 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:17:53,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:17:53,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033675976] [2021-10-08 17:17:53,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:17:53,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:17:53,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:17:53,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:17:53,415 INFO L87 Difference]: Start difference. First operand 18400 states and 56005 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:55,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:17:55,108 INFO L93 Difference]: Finished difference Result 20188 states and 61189 transitions. [2021-10-08 17:17:55,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 17:17:55,109 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:17:55,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:17:55,162 INFO L225 Difference]: With dead ends: 20188 [2021-10-08 17:17:55,163 INFO L226 Difference]: Without dead ends: 19776 [2021-10-08 17:17:55,163 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 903.5ms TimeCoverageRelationStatistics Valid=135, Invalid=921, Unknown=0, NotChecked=0, Total=1056 [2021-10-08 17:17:55,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19776 states. [2021-10-08 17:17:55,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19776 to 18562. [2021-10-08 17:17:55,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18562 states, 18561 states have (on average 3.0418619686439308) internal successors, (56460), 18561 states have internal predecessors, (56460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:55,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18562 states to 18562 states and 56460 transitions. [2021-10-08 17:17:55,650 INFO L78 Accepts]: Start accepts. Automaton has 18562 states and 56460 transitions. Word has length 54 [2021-10-08 17:17:55,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:17:55,650 INFO L470 AbstractCegarLoop]: Abstraction has 18562 states and 56460 transitions. [2021-10-08 17:17:55,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:17:55,651 INFO L276 IsEmpty]: Start isEmpty. Operand 18562 states and 56460 transitions. [2021-10-08 17:17:55,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:17:55,693 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:17:55,693 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:17:55,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (96)] Forceful destruction successful, exit code 0 [2021-10-08 17:17:55,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:17:55,908 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:17:55,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:17:55,909 INFO L82 PathProgramCache]: Analyzing trace with hash 2000806704, now seen corresponding path program 7 times [2021-10-08 17:17:55,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:17:55,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024187498] [2021-10-08 17:17:55,909 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:17:55,910 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:17:55,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:17:55,911 INFO L229 MonitoredProcess]: Starting monitored process 97 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:17:55,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (97)] Waiting until timeout for monitored process [2021-10-08 17:17:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:17:58,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:17:58,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:17:58,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:58,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:17:59,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:17:59,677 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:17:59,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024187498] [2021-10-08 17:17:59,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024187498] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:17:59,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:17:59,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:17:59,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892951752] [2021-10-08 17:17:59,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:17:59,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:17:59,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:17:59,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:17:59,679 INFO L87 Difference]: Start difference. First operand 18562 states and 56460 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:01,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:18:01,663 INFO L93 Difference]: Finished difference Result 20188 states and 60948 transitions. [2021-10-08 17:18:01,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-08 17:18:01,664 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:18:01,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:18:01,726 INFO L225 Difference]: With dead ends: 20188 [2021-10-08 17:18:01,726 INFO L226 Difference]: Without dead ends: 19846 [2021-10-08 17:18:01,726 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1164.2ms TimeCoverageRelationStatistics Valid=204, Invalid=1278, Unknown=0, NotChecked=0, Total=1482 [2021-10-08 17:18:01,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19846 states. [2021-10-08 17:18:02,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19846 to 18562. [2021-10-08 17:18:02,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18562 states, 18561 states have (on average 3.0414309573837617) internal successors, (56452), 18561 states have internal predecessors, (56452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:02,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18562 states to 18562 states and 56452 transitions. [2021-10-08 17:18:02,262 INFO L78 Accepts]: Start accepts. Automaton has 18562 states and 56452 transitions. Word has length 54 [2021-10-08 17:18:02,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:18:02,262 INFO L470 AbstractCegarLoop]: Abstraction has 18562 states and 56452 transitions. [2021-10-08 17:18:02,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:02,262 INFO L276 IsEmpty]: Start isEmpty. Operand 18562 states and 56452 transitions. [2021-10-08 17:18:02,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:18:02,298 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:18:02,298 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:18:02,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (97)] Forceful destruction successful, exit code 0 [2021-10-08 17:18:02,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:18:02,499 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:18:02,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:18:02,500 INFO L82 PathProgramCache]: Analyzing trace with hash -478419308, now seen corresponding path program 8 times [2021-10-08 17:18:02,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:18:02,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624066512] [2021-10-08 17:18:02,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:18:02,501 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:18:02,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:18:02,502 INFO L229 MonitoredProcess]: Starting monitored process 98 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:18:02,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (98)] Waiting until timeout for monitored process [2021-10-08 17:18:04,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:18:04,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:18:04,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:18:04,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:18:05,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:05,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:18:06,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:06,270 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:18:06,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624066512] [2021-10-08 17:18:06,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624066512] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:18:06,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:18:06,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:18:06,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486667075] [2021-10-08 17:18:06,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:18:06,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:18:06,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:18:06,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:18:06,271 INFO L87 Difference]: Start difference. First operand 18562 states and 56452 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:08,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:18:08,158 INFO L93 Difference]: Finished difference Result 19772 states and 59840 transitions. [2021-10-08 17:18:08,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-08 17:18:08,159 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:18:08,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:18:08,205 INFO L225 Difference]: With dead ends: 19772 [2021-10-08 17:18:08,205 INFO L226 Difference]: Without dead ends: 19492 [2021-10-08 17:18:08,206 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1033.9ms TimeCoverageRelationStatistics Valid=189, Invalid=1143, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 17:18:08,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19492 states. [2021-10-08 17:18:08,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19492 to 18546. [2021-10-08 17:18:08,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18546 states, 18545 states have (on average 3.0418980857373956) internal successors, (56412), 18545 states have internal predecessors, (56412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:08,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18546 states to 18546 states and 56412 transitions. [2021-10-08 17:18:08,798 INFO L78 Accepts]: Start accepts. Automaton has 18546 states and 56412 transitions. Word has length 54 [2021-10-08 17:18:08,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:18:08,798 INFO L470 AbstractCegarLoop]: Abstraction has 18546 states and 56412 transitions. [2021-10-08 17:18:08,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:08,799 INFO L276 IsEmpty]: Start isEmpty. Operand 18546 states and 56412 transitions. [2021-10-08 17:18:08,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:18:08,829 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:18:08,829 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:18:08,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (98)] Forceful destruction successful, exit code 0 [2021-10-08 17:18:09,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:18:09,031 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:18:09,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:18:09,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1298525618, now seen corresponding path program 9 times [2021-10-08 17:18:09,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:18:09,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562356573] [2021-10-08 17:18:09,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:18:09,034 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:18:09,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:18:09,035 INFO L229 MonitoredProcess]: Starting monitored process 99 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:18:09,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (99)] Waiting until timeout for monitored process [2021-10-08 17:18:11,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:18:11,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:18:11,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:18:11,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:18:11,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:11,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:18:12,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:12,806 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:18:12,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562356573] [2021-10-08 17:18:12,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562356573] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:18:12,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:18:12,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:18:12,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651780051] [2021-10-08 17:18:12,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:18:12,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:18:12,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:18:12,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:18:12,808 INFO L87 Difference]: Start difference. First operand 18546 states and 56412 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:14,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:18:14,658 INFO L93 Difference]: Finished difference Result 19476 states and 58967 transitions. [2021-10-08 17:18:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-08 17:18:14,659 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:18:14,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:18:14,715 INFO L225 Difference]: With dead ends: 19476 [2021-10-08 17:18:14,715 INFO L226 Difference]: Without dead ends: 19068 [2021-10-08 17:18:14,716 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1007.4ms TimeCoverageRelationStatistics Valid=145, Invalid=1045, Unknown=0, NotChecked=0, Total=1190 [2021-10-08 17:18:14,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19068 states. [2021-10-08 17:18:15,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19068 to 18522. [2021-10-08 17:18:15,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18522 states, 18521 states have (on average 3.041844392851358) internal successors, (56338), 18521 states have internal predecessors, (56338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:15,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18522 states to 18522 states and 56338 transitions. [2021-10-08 17:18:15,233 INFO L78 Accepts]: Start accepts. Automaton has 18522 states and 56338 transitions. Word has length 54 [2021-10-08 17:18:15,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:18:15,233 INFO L470 AbstractCegarLoop]: Abstraction has 18522 states and 56338 transitions. [2021-10-08 17:18:15,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:15,233 INFO L276 IsEmpty]: Start isEmpty. Operand 18522 states and 56338 transitions. [2021-10-08 17:18:15,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:18:15,265 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:18:15,265 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:18:15,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (99)] Forceful destruction successful, exit code 0 [2021-10-08 17:18:15,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:18:15,466 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:18:15,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:18:15,467 INFO L82 PathProgramCache]: Analyzing trace with hash 586200702, now seen corresponding path program 10 times [2021-10-08 17:18:15,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:18:15,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276190697] [2021-10-08 17:18:15,468 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:18:15,468 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:18:15,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:18:15,470 INFO L229 MonitoredProcess]: Starting monitored process 100 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:18:15,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (100)] Waiting until timeout for monitored process [2021-10-08 17:18:18,144 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:18:18,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:18:18,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:18:18,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:18:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:18,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:18:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:19,404 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:18:19,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276190697] [2021-10-08 17:18:19,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276190697] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:18:19,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:18:19,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-08 17:18:19,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860907154] [2021-10-08 17:18:19,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 17:18:19,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:18:19,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 17:18:19,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-08 17:18:19,406 INFO L87 Difference]: Start difference. First operand 18522 states and 56338 transitions. Second operand has 21 states, 21 states have (on average 4.380952380952381) internal successors, (92), 20 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:21,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:18:21,051 INFO L93 Difference]: Finished difference Result 20530 states and 61699 transitions. [2021-10-08 17:18:21,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-08 17:18:21,053 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.380952380952381) internal successors, (92), 20 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:18:21,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:18:21,107 INFO L225 Difference]: With dead ends: 20530 [2021-10-08 17:18:21,108 INFO L226 Difference]: Without dead ends: 20118 [2021-10-08 17:18:21,108 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 854.5ms TimeCoverageRelationStatistics Valid=157, Invalid=965, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 17:18:21,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20118 states. [2021-10-08 17:18:21,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20118 to 18530. [2021-10-08 17:18:21,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18530 states, 18529 states have (on average 3.041610448486157) internal successors, (56358), 18529 states have internal predecessors, (56358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:21,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18530 states to 18530 states and 56358 transitions. [2021-10-08 17:18:21,694 INFO L78 Accepts]: Start accepts. Automaton has 18530 states and 56358 transitions. Word has length 54 [2021-10-08 17:18:21,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:18:21,694 INFO L470 AbstractCegarLoop]: Abstraction has 18530 states and 56358 transitions. [2021-10-08 17:18:21,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.380952380952381) internal successors, (92), 20 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:21,694 INFO L276 IsEmpty]: Start isEmpty. Operand 18530 states and 56358 transitions. [2021-10-08 17:18:21,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:18:21,727 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:18:21,728 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:18:21,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (100)] Forceful destruction successful, exit code 0 [2021-10-08 17:18:21,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:18:21,928 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:18:21,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:18:21,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1766462036, now seen corresponding path program 11 times [2021-10-08 17:18:21,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:18:21,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403205923] [2021-10-08 17:18:21,930 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:18:21,930 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:18:21,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:18:21,933 INFO L229 MonitoredProcess]: Starting monitored process 101 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:18:21,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (101)] Waiting until timeout for monitored process [2021-10-08 17:18:24,421 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:18:24,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:18:24,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:18:24,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:18:24,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:24,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:18:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:26,008 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:18:26,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403205923] [2021-10-08 17:18:26,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1403205923] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:18:26,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:18:26,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-08 17:18:26,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706892898] [2021-10-08 17:18:26,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 17:18:26,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:18:26,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 17:18:26,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:18:26,009 INFO L87 Difference]: Start difference. First operand 18530 states and 56358 transitions. Second operand has 25 states, 25 states have (on average 3.68) internal successors, (92), 24 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:31,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:18:31,490 INFO L93 Difference]: Finished difference Result 22514 states and 67513 transitions. [2021-10-08 17:18:31,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-08 17:18:31,490 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.68) internal successors, (92), 24 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:18:31,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:18:31,547 INFO L225 Difference]: With dead ends: 22514 [2021-10-08 17:18:31,547 INFO L226 Difference]: Without dead ends: 22034 [2021-10-08 17:18:31,548 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 2995.0ms TimeCoverageRelationStatistics Valid=272, Invalid=2278, Unknown=0, NotChecked=0, Total=2550 [2021-10-08 17:18:31,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22034 states. [2021-10-08 17:18:32,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22034 to 19314. [2021-10-08 17:18:32,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19314 states, 19313 states have (on average 3.0376430383679387) internal successors, (58666), 19313 states have internal predecessors, (58666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:32,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19314 states to 19314 states and 58666 transitions. [2021-10-08 17:18:32,076 INFO L78 Accepts]: Start accepts. Automaton has 19314 states and 58666 transitions. Word has length 54 [2021-10-08 17:18:32,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:18:32,077 INFO L470 AbstractCegarLoop]: Abstraction has 19314 states and 58666 transitions. [2021-10-08 17:18:32,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.68) internal successors, (92), 24 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:32,077 INFO L276 IsEmpty]: Start isEmpty. Operand 19314 states and 58666 transitions. [2021-10-08 17:18:32,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:18:32,111 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:18:32,111 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:18:32,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (101)] Forceful destruction successful, exit code 0 [2021-10-08 17:18:32,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:18:32,321 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:18:32,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:18:32,321 INFO L82 PathProgramCache]: Analyzing trace with hash -894747030, now seen corresponding path program 12 times [2021-10-08 17:18:32,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:18:32,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737430331] [2021-10-08 17:18:32,322 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:18:32,323 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:18:32,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:18:32,324 INFO L229 MonitoredProcess]: Starting monitored process 102 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:18:32,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (102)] Waiting until timeout for monitored process [2021-10-08 17:18:34,912 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:18:34,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:18:34,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:18:34,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:18:35,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:35,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:18:36,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:36,278 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:18:36,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737430331] [2021-10-08 17:18:36,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737430331] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:18:36,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:18:36,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:18:36,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037490512] [2021-10-08 17:18:36,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:18:36,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:18:36,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:18:36,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:18:36,280 INFO L87 Difference]: Start difference. First operand 19314 states and 58666 transitions. Second operand has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:38,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:18:38,170 INFO L93 Difference]: Finished difference Result 21084 states and 63631 transitions. [2021-10-08 17:18:38,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 17:18:38,171 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:18:38,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:18:38,225 INFO L225 Difference]: With dead ends: 21084 [2021-10-08 17:18:38,226 INFO L226 Difference]: Without dead ends: 20672 [2021-10-08 17:18:38,226 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 987.6ms TimeCoverageRelationStatistics Valid=149, Invalid=1041, Unknown=0, NotChecked=0, Total=1190 [2021-10-08 17:18:38,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20672 states. [2021-10-08 17:18:38,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20672 to 19338. [2021-10-08 17:18:38,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19338 states, 19337 states have (on average 3.037286031959456) internal successors, (58732), 19337 states have internal predecessors, (58732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:38,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19338 states to 19338 states and 58732 transitions. [2021-10-08 17:18:38,786 INFO L78 Accepts]: Start accepts. Automaton has 19338 states and 58732 transitions. Word has length 54 [2021-10-08 17:18:38,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:18:38,786 INFO L470 AbstractCegarLoop]: Abstraction has 19338 states and 58732 transitions. [2021-10-08 17:18:38,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:38,786 INFO L276 IsEmpty]: Start isEmpty. Operand 19338 states and 58732 transitions. [2021-10-08 17:18:38,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:18:38,819 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:18:38,820 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:18:38,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (102)] Forceful destruction successful, exit code 0 [2021-10-08 17:18:39,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:18:39,028 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:18:39,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:18:39,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1762280798, now seen corresponding path program 13 times [2021-10-08 17:18:39,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:18:39,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192165416] [2021-10-08 17:18:39,030 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:18:39,030 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:18:39,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:18:39,031 INFO L229 MonitoredProcess]: Starting monitored process 103 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:18:39,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (103)] Waiting until timeout for monitored process [2021-10-08 17:18:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:18:41,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:18:41,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:18:41,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:41,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:18:42,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:42,950 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:18:42,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192165416] [2021-10-08 17:18:42,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192165416] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:18:42,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:18:42,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:18:42,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500007705] [2021-10-08 17:18:42,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:18:42,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:18:42,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:18:42,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:18:42,952 INFO L87 Difference]: Start difference. First operand 19338 states and 58732 transitions. Second operand has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:45,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:18:45,427 INFO L93 Difference]: Finished difference Result 21218 states and 63895 transitions. [2021-10-08 17:18:45,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-08 17:18:45,428 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:18:45,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:18:45,476 INFO L225 Difference]: With dead ends: 21218 [2021-10-08 17:18:45,477 INFO L226 Difference]: Without dead ends: 20876 [2021-10-08 17:18:45,477 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1388.8ms TimeCoverageRelationStatistics Valid=214, Invalid=1426, Unknown=0, NotChecked=0, Total=1640 [2021-10-08 17:18:45,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20876 states. [2021-10-08 17:18:45,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20876 to 19362. [2021-10-08 17:18:45,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19362 states, 19361 states have (on average 3.0364134083983267) internal successors, (58788), 19361 states have internal predecessors, (58788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:46,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19362 states to 19362 states and 58788 transitions. [2021-10-08 17:18:46,056 INFO L78 Accepts]: Start accepts. Automaton has 19362 states and 58788 transitions. Word has length 54 [2021-10-08 17:18:46,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:18:46,056 INFO L470 AbstractCegarLoop]: Abstraction has 19362 states and 58788 transitions. [2021-10-08 17:18:46,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:46,056 INFO L276 IsEmpty]: Start isEmpty. Operand 19362 states and 58788 transitions. [2021-10-08 17:18:46,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:18:46,105 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:18:46,106 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:18:46,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (103)] Forceful destruction successful, exit code 0 [2021-10-08 17:18:46,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:18:46,322 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:18:46,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:18:46,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1308875842, now seen corresponding path program 14 times [2021-10-08 17:18:46,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:18:46,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276747015] [2021-10-08 17:18:46,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:18:46,324 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:18:46,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:18:46,325 INFO L229 MonitoredProcess]: Starting monitored process 104 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:18:46,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (104)] Waiting until timeout for monitored process [2021-10-08 17:18:49,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:18:49,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:18:49,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:18:49,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:18:49,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:49,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:18:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:50,644 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:18:50,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276747015] [2021-10-08 17:18:50,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276747015] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:18:50,644 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:18:50,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:18:50,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092921856] [2021-10-08 17:18:50,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:18:50,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:18:50,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:18:50,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:18:50,646 INFO L87 Difference]: Start difference. First operand 19362 states and 58788 transitions. Second operand has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:52,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:18:52,953 INFO L93 Difference]: Finished difference Result 20906 states and 63079 transitions. [2021-10-08 17:18:52,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-08 17:18:52,954 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:18:52,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:18:53,002 INFO L225 Difference]: With dead ends: 20906 [2021-10-08 17:18:53,002 INFO L226 Difference]: Without dead ends: 20626 [2021-10-08 17:18:53,003 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1534.6ms TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2021-10-08 17:18:53,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20626 states. [2021-10-08 17:18:53,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20626 to 19346. [2021-10-08 17:18:53,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19346 states, 19345 states have (on average 3.0368570690100802) internal successors, (58748), 19345 states have internal predecessors, (58748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:53,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19346 states to 19346 states and 58748 transitions. [2021-10-08 17:18:53,535 INFO L78 Accepts]: Start accepts. Automaton has 19346 states and 58748 transitions. Word has length 54 [2021-10-08 17:18:53,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:18:53,535 INFO L470 AbstractCegarLoop]: Abstraction has 19346 states and 58748 transitions. [2021-10-08 17:18:53,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:53,535 INFO L276 IsEmpty]: Start isEmpty. Operand 19346 states and 58748 transitions. [2021-10-08 17:18:53,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:18:53,567 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:18:53,567 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:18:53,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (104)] Forceful destruction successful, exit code 0 [2021-10-08 17:18:53,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:18:53,776 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:18:53,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:18:53,777 INFO L82 PathProgramCache]: Analyzing trace with hash -2058157984, now seen corresponding path program 15 times [2021-10-08 17:18:53,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:18:53,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125971622] [2021-10-08 17:18:53,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:18:53,778 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:18:53,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:18:53,779 INFO L229 MonitoredProcess]: Starting monitored process 105 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:18:53,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (105)] Waiting until timeout for monitored process [2021-10-08 17:18:56,254 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:18:56,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:18:56,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:18:56,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:18:56,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:56,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:18:57,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:18:57,572 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:18:57,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125971622] [2021-10-08 17:18:57,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125971622] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:18:57,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:18:57,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:18:57,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754463192] [2021-10-08 17:18:57,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:18:57,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:18:57,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:18:57,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:18:57,574 INFO L87 Difference]: Start difference. First operand 19346 states and 58748 transitions. Second operand has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:59,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:18:59,370 INFO L93 Difference]: Finished difference Result 20544 states and 62023 transitions. [2021-10-08 17:18:59,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-08 17:18:59,371 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:18:59,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:18:59,418 INFO L225 Difference]: With dead ends: 20544 [2021-10-08 17:18:59,419 INFO L226 Difference]: Without dead ends: 20136 [2021-10-08 17:18:59,419 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1112.9ms TimeCoverageRelationStatistics Valid=158, Invalid=1174, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 17:18:59,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20136 states. [2021-10-08 17:18:59,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20136 to 19310. [2021-10-08 17:18:59,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19310 states, 19309 states have (on average 3.0375472577554508) internal successors, (58652), 19309 states have internal predecessors, (58652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:59,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19310 states to 19310 states and 58652 transitions. [2021-10-08 17:18:59,940 INFO L78 Accepts]: Start accepts. Automaton has 19310 states and 58652 transitions. Word has length 54 [2021-10-08 17:18:59,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:18:59,941 INFO L470 AbstractCegarLoop]: Abstraction has 19310 states and 58652 transitions. [2021-10-08 17:18:59,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:18:59,941 INFO L276 IsEmpty]: Start isEmpty. Operand 19310 states and 58652 transitions. [2021-10-08 17:18:59,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:18:59,972 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:18:59,973 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:18:59,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (105)] Forceful destruction successful, exit code 0 [2021-10-08 17:19:00,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:19:00,173 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:19:00,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:19:00,174 INFO L82 PathProgramCache]: Analyzing trace with hash -444097364, now seen corresponding path program 16 times [2021-10-08 17:19:00,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:19:00,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439259790] [2021-10-08 17:19:00,175 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:19:00,176 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:19:00,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:19:00,177 INFO L229 MonitoredProcess]: Starting monitored process 106 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:19:00,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (106)] Waiting until timeout for monitored process [2021-10-08 17:19:02,721 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:19:02,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:19:02,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:19:02,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:19:03,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:03,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:19:04,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:04,118 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:19:04,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439259790] [2021-10-08 17:19:04,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439259790] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:19:04,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:19:04,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-08 17:19:04,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007204231] [2021-10-08 17:19:04,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 17:19:04,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:19:04,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 17:19:04,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:19:04,121 INFO L87 Difference]: Start difference. First operand 19310 states and 58652 transitions. Second operand has 25 states, 25 states have (on average 3.68) internal successors, (92), 24 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:09,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:19:09,538 INFO L93 Difference]: Finished difference Result 23784 states and 70915 transitions. [2021-10-08 17:19:09,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-08 17:19:09,539 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.68) internal successors, (92), 24 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:19:09,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:19:09,594 INFO L225 Difference]: With dead ends: 23784 [2021-10-08 17:19:09,595 INFO L226 Difference]: Without dead ends: 23304 [2021-10-08 17:19:09,595 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 2745.1ms TimeCoverageRelationStatistics Valid=279, Invalid=2373, Unknown=0, NotChecked=0, Total=2652 [2021-10-08 17:19:09,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23304 states. [2021-10-08 17:19:10,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23304 to 19294. [2021-10-08 17:19:10,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19294 states, 19293 states have (on average 3.0375783963095424) internal successors, (58604), 19293 states have internal predecessors, (58604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:10,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19294 states to 19294 states and 58604 transitions. [2021-10-08 17:19:10,109 INFO L78 Accepts]: Start accepts. Automaton has 19294 states and 58604 transitions. Word has length 54 [2021-10-08 17:19:10,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:19:10,109 INFO L470 AbstractCegarLoop]: Abstraction has 19294 states and 58604 transitions. [2021-10-08 17:19:10,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.68) internal successors, (92), 24 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:10,109 INFO L276 IsEmpty]: Start isEmpty. Operand 19294 states and 58604 transitions. [2021-10-08 17:19:10,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:19:10,141 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:19:10,142 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:19:10,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (106)] Forceful destruction successful, exit code 0 [2021-10-08 17:19:10,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:19:10,343 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:19:10,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:19:10,344 INFO L82 PathProgramCache]: Analyzing trace with hash 427617642, now seen corresponding path program 17 times [2021-10-08 17:19:10,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:19:10,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132838629] [2021-10-08 17:19:10,345 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:19:10,345 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:19:10,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:19:10,346 INFO L229 MonitoredProcess]: Starting monitored process 107 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:19:10,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (107)] Waiting until timeout for monitored process [2021-10-08 17:19:13,000 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:19:13,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:19:13,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:19:13,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:19:13,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:13,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:19:14,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:14,203 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:19:14,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132838629] [2021-10-08 17:19:14,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132838629] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:19:14,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:19:14,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:19:14,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713068027] [2021-10-08 17:19:14,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:19:14,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:19:14,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:19:14,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:19:14,205 INFO L87 Difference]: Start difference. First operand 19294 states and 58604 transitions. Second operand has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:16,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:19:16,281 INFO L93 Difference]: Finished difference Result 21612 states and 65070 transitions. [2021-10-08 17:19:16,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-08 17:19:16,282 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:19:16,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:19:16,332 INFO L225 Difference]: With dead ends: 21612 [2021-10-08 17:19:16,332 INFO L226 Difference]: Without dead ends: 21200 [2021-10-08 17:19:16,333 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 966.0ms TimeCoverageRelationStatistics Valid=156, Invalid=1104, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 17:19:16,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21200 states. [2021-10-08 17:19:16,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21200 to 19342. [2021-10-08 17:19:16,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19342 states, 19341 states have (on average 3.037278320665943) internal successors, (58744), 19341 states have internal predecessors, (58744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:16,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19342 states to 19342 states and 58744 transitions. [2021-10-08 17:19:16,843 INFO L78 Accepts]: Start accepts. Automaton has 19342 states and 58744 transitions. Word has length 54 [2021-10-08 17:19:16,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:19:16,843 INFO L470 AbstractCegarLoop]: Abstraction has 19342 states and 58744 transitions. [2021-10-08 17:19:16,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:16,844 INFO L276 IsEmpty]: Start isEmpty. Operand 19342 states and 58744 transitions. [2021-10-08 17:19:16,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:19:16,875 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:19:16,875 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:19:16,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (107)] Forceful destruction successful, exit code 0 [2021-10-08 17:19:17,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:19:17,084 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:19:17,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:19:17,085 INFO L82 PathProgramCache]: Analyzing trace with hash -439916126, now seen corresponding path program 18 times [2021-10-08 17:19:17,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:19:17,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878728598] [2021-10-08 17:19:17,086 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:19:17,086 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:19:17,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:19:17,088 INFO L229 MonitoredProcess]: Starting monitored process 108 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:19:17,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (108)] Waiting until timeout for monitored process [2021-10-08 17:19:19,722 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:19:19,722 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:19:19,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:19:19,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:19:20,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:20,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:19:20,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:20,927 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:19:20,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878728598] [2021-10-08 17:19:20,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878728598] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:19:20,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:19:20,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:19:20,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100131711] [2021-10-08 17:19:20,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:19:20,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:19:20,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:19:20,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:19:20,930 INFO L87 Difference]: Start difference. First operand 19342 states and 58744 transitions. Second operand has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:24,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:19:24,079 INFO L93 Difference]: Finished difference Result 20266 states and 60333 transitions. [2021-10-08 17:19:24,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-08 17:19:24,080 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:19:24,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:19:24,126 INFO L225 Difference]: With dead ends: 20266 [2021-10-08 17:19:24,126 INFO L226 Difference]: Without dead ends: 19900 [2021-10-08 17:19:24,127 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 1576.3ms TimeCoverageRelationStatistics Valid=303, Invalid=2147, Unknown=0, NotChecked=0, Total=2450 [2021-10-08 17:19:24,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19900 states. [2021-10-08 17:19:24,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19900 to 17716. [2021-10-08 17:19:24,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17716 states, 17715 states have (on average 3.020829805249788) internal successors, (53514), 17715 states have internal predecessors, (53514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:24,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17716 states to 17716 states and 53514 transitions. [2021-10-08 17:19:24,619 INFO L78 Accepts]: Start accepts. Automaton has 17716 states and 53514 transitions. Word has length 54 [2021-10-08 17:19:24,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:19:24,619 INFO L470 AbstractCegarLoop]: Abstraction has 17716 states and 53514 transitions. [2021-10-08 17:19:24,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:24,619 INFO L276 IsEmpty]: Start isEmpty. Operand 17716 states and 53514 transitions. [2021-10-08 17:19:24,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:19:24,648 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:19:24,648 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:19:24,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (108)] Forceful destruction successful, exit code 0 [2021-10-08 17:19:24,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:19:24,863 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:19:24,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:19:24,865 INFO L82 PathProgramCache]: Analyzing trace with hash 13488830, now seen corresponding path program 19 times [2021-10-08 17:19:24,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:19:24,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34422432] [2021-10-08 17:19:24,866 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:19:24,866 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:19:24,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:19:24,867 INFO L229 MonitoredProcess]: Starting monitored process 109 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:19:24,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (109)] Waiting until timeout for monitored process [2021-10-08 17:19:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:19:27,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:19:27,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:19:28,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:28,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:19:28,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:28,931 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:19:28,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34422432] [2021-10-08 17:19:28,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34422432] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:19:28,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:19:28,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:19:28,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458736420] [2021-10-08 17:19:28,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:19:28,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:19:28,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:19:28,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:19:28,935 INFO L87 Difference]: Start difference. First operand 17716 states and 53514 transitions. Second operand has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:32,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:19:32,043 INFO L93 Difference]: Finished difference Result 20080 states and 59942 transitions. [2021-10-08 17:19:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-08 17:19:32,043 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:19:32,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:19:32,088 INFO L225 Difference]: With dead ends: 20080 [2021-10-08 17:19:32,088 INFO L226 Difference]: Without dead ends: 19760 [2021-10-08 17:19:32,089 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1511.0ms TimeCoverageRelationStatistics Valid=316, Invalid=2134, Unknown=0, NotChecked=0, Total=2450 [2021-10-08 17:19:32,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19760 states. [2021-10-08 17:19:32,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19760 to 17692. [2021-10-08 17:19:32,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17692 states, 17691 states have (on average 3.021649426261941) internal successors, (53456), 17691 states have internal predecessors, (53456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:32,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17692 states to 17692 states and 53456 transitions. [2021-10-08 17:19:32,547 INFO L78 Accepts]: Start accepts. Automaton has 17692 states and 53456 transitions. Word has length 54 [2021-10-08 17:19:32,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:19:32,547 INFO L470 AbstractCegarLoop]: Abstraction has 17692 states and 53456 transitions. [2021-10-08 17:19:32,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:32,547 INFO L276 IsEmpty]: Start isEmpty. Operand 17692 states and 53456 transitions. [2021-10-08 17:19:32,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:19:32,576 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:19:32,576 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:19:32,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (109)] Ended with exit code 0 [2021-10-08 17:19:32,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:19:32,777 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:19:32,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:19:32,778 INFO L82 PathProgramCache]: Analyzing trace with hash -735793312, now seen corresponding path program 20 times [2021-10-08 17:19:32,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:19:32,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699536996] [2021-10-08 17:19:32,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:19:32,779 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:19:32,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:19:32,780 INFO L229 MonitoredProcess]: Starting monitored process 110 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:19:32,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (110)] Waiting until timeout for monitored process [2021-10-08 17:19:35,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:19:35,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:19:35,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:19:35,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:19:36,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:36,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:19:37,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:37,007 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:19:37,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699536996] [2021-10-08 17:19:37,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699536996] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:19:37,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:19:37,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:19:37,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630313242] [2021-10-08 17:19:37,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:19:37,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:19:37,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:19:37,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:19:37,010 INFO L87 Difference]: Start difference. First operand 17692 states and 53456 transitions. Second operand has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:39,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:19:39,532 INFO L93 Difference]: Finished difference Result 19098 states and 57155 transitions. [2021-10-08 17:19:39,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-08 17:19:39,533 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:19:39,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:19:39,576 INFO L225 Difference]: With dead ends: 19098 [2021-10-08 17:19:39,576 INFO L226 Difference]: Without dead ends: 18658 [2021-10-08 17:19:39,577 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1185.4ms TimeCoverageRelationStatistics Valid=182, Invalid=1378, Unknown=0, NotChecked=0, Total=1560 [2021-10-08 17:19:39,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18658 states. [2021-10-08 17:19:39,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18658 to 17596. [2021-10-08 17:19:39,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17596 states, 17595 states have (on average 3.0217107132708154) internal successors, (53167), 17595 states have internal predecessors, (53167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17596 states to 17596 states and 53167 transitions. [2021-10-08 17:19:40,033 INFO L78 Accepts]: Start accepts. Automaton has 17596 states and 53167 transitions. Word has length 54 [2021-10-08 17:19:40,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:19:40,033 INFO L470 AbstractCegarLoop]: Abstraction has 17596 states and 53167 transitions. [2021-10-08 17:19:40,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.0) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 17596 states and 53167 transitions. [2021-10-08 17:19:40,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:19:40,061 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:19:40,061 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:19:40,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (110)] Forceful destruction successful, exit code 0 [2021-10-08 17:19:40,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:19:40,263 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:19:40,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:19:40,264 INFO L82 PathProgramCache]: Analyzing trace with hash -158179550, now seen corresponding path program 21 times [2021-10-08 17:19:40,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:19:40,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598047550] [2021-10-08 17:19:40,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:19:40,265 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:19:40,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:19:40,266 INFO L229 MonitoredProcess]: Starting monitored process 111 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:19:40,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (111)] Waiting until timeout for monitored process [2021-10-08 17:19:43,102 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:19:43,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:19:43,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-08 17:19:43,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:19:43,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:43,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:19:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:43,924 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:19:43,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598047550] [2021-10-08 17:19:43,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598047550] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:19:43,924 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:19:43,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2021-10-08 17:19:43,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924536183] [2021-10-08 17:19:43,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-08 17:19:43,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:19:43,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-08 17:19:43,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-10-08 17:19:43,925 INFO L87 Difference]: Start difference. First operand 17596 states and 53167 transitions. Second operand has 20 states, 20 states have (on average 4.1) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:46,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:19:46,211 INFO L93 Difference]: Finished difference Result 19180 states and 57868 transitions. [2021-10-08 17:19:46,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-08 17:19:46,212 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:19:46,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:19:46,255 INFO L225 Difference]: With dead ends: 19180 [2021-10-08 17:19:46,255 INFO L226 Difference]: Without dead ends: 19180 [2021-10-08 17:19:46,255 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 983.7ms TimeCoverageRelationStatistics Valid=247, Invalid=1313, Unknown=0, NotChecked=0, Total=1560 [2021-10-08 17:19:46,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19180 states. [2021-10-08 17:19:46,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19180 to 17636. [2021-10-08 17:19:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17636 states, 17635 states have (on average 3.022001701162461) internal successors, (53293), 17635 states have internal predecessors, (53293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:46,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17636 states to 17636 states and 53293 transitions. [2021-10-08 17:19:46,716 INFO L78 Accepts]: Start accepts. Automaton has 17636 states and 53293 transitions. Word has length 54 [2021-10-08 17:19:46,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:19:46,716 INFO L470 AbstractCegarLoop]: Abstraction has 17636 states and 53293 transitions. [2021-10-08 17:19:46,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:46,716 INFO L276 IsEmpty]: Start isEmpty. Operand 17636 states and 53293 transitions. [2021-10-08 17:19:46,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:19:46,745 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:19:46,745 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:19:46,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (111)] Forceful destruction successful, exit code 0 [2021-10-08 17:19:46,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:19:46,946 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:19:46,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:19:46,947 INFO L82 PathProgramCache]: Analyzing trace with hash -197601596, now seen corresponding path program 22 times [2021-10-08 17:19:46,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:19:46,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597161474] [2021-10-08 17:19:46,948 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:19:46,948 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:19:46,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:19:46,949 INFO L229 MonitoredProcess]: Starting monitored process 112 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:19:46,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (112)] Waiting until timeout for monitored process [2021-10-08 17:19:49,885 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:19:49,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:19:49,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-08 17:19:49,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:19:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:50,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:19:50,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:50,550 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:19:50,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597161474] [2021-10-08 17:19:50,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597161474] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:19:50,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:19:50,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-10-08 17:19:50,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632084786] [2021-10-08 17:19:50,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-08 17:19:50,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:19:50,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-08 17:19:50,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-10-08 17:19:50,551 INFO L87 Difference]: Start difference. First operand 17636 states and 53293 transitions. Second operand has 18 states, 18 states have (on average 4.277777777777778) internal successors, (77), 17 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:52,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:19:52,321 INFO L93 Difference]: Finished difference Result 18938 states and 57147 transitions. [2021-10-08 17:19:52,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-08 17:19:52,322 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.277777777777778) internal successors, (77), 17 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:19:52,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:19:52,366 INFO L225 Difference]: With dead ends: 18938 [2021-10-08 17:19:52,367 INFO L226 Difference]: Without dead ends: 18938 [2021-10-08 17:19:52,367 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 759.2ms TimeCoverageRelationStatistics Valid=204, Invalid=1056, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 17:19:52,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18938 states. [2021-10-08 17:19:52,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18938 to 17660. [2021-10-08 17:19:52,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17660 states, 17659 states have (on average 3.0219717990826207) internal successors, (53365), 17659 states have internal predecessors, (53365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:52,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17660 states to 17660 states and 53365 transitions. [2021-10-08 17:19:52,859 INFO L78 Accepts]: Start accepts. Automaton has 17660 states and 53365 transitions. Word has length 54 [2021-10-08 17:19:52,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:19:52,859 INFO L470 AbstractCegarLoop]: Abstraction has 17660 states and 53365 transitions. [2021-10-08 17:19:52,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.277777777777778) internal successors, (77), 17 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:52,860 INFO L276 IsEmpty]: Start isEmpty. Operand 17660 states and 53365 transitions. [2021-10-08 17:19:52,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:19:52,888 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:19:52,888 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:19:52,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (112)] Forceful destruction successful, exit code 0 [2021-10-08 17:19:53,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:19:53,089 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:19:53,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:19:53,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1563605950, now seen corresponding path program 23 times [2021-10-08 17:19:53,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:19:53,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61482139] [2021-10-08 17:19:53,091 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:19:53,091 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:19:53,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:19:53,092 INFO L229 MonitoredProcess]: Starting monitored process 113 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:19:53,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (113)] Waiting until timeout for monitored process [2021-10-08 17:19:55,844 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:19:55,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:19:55,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:19:55,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:19:56,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:56,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:19:57,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:19:57,217 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:19:57,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61482139] [2021-10-08 17:19:57,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61482139] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:19:57,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:19:57,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:19:57,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688274964] [2021-10-08 17:19:57,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:19:57,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:19:57,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:19:57,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:19:57,219 INFO L87 Difference]: Start difference. First operand 17660 states and 53365 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:59,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:19:59,363 INFO L93 Difference]: Finished difference Result 19086 states and 57358 transitions. [2021-10-08 17:19:59,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-08 17:19:59,364 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:19:59,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:19:59,407 INFO L225 Difference]: With dead ends: 19086 [2021-10-08 17:19:59,407 INFO L226 Difference]: Without dead ends: 18744 [2021-10-08 17:19:59,407 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1205.6ms TimeCoverageRelationStatistics Valid=189, Invalid=1217, Unknown=0, NotChecked=0, Total=1406 [2021-10-08 17:19:59,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18744 states. [2021-10-08 17:19:59,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18744 to 17668. [2021-10-08 17:19:59,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17668 states, 17667 states have (on average 3.02105620648667) internal successors, (53373), 17667 states have internal predecessors, (53373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:59,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17668 states to 17668 states and 53373 transitions. [2021-10-08 17:19:59,894 INFO L78 Accepts]: Start accepts. Automaton has 17668 states and 53373 transitions. Word has length 54 [2021-10-08 17:19:59,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:19:59,894 INFO L470 AbstractCegarLoop]: Abstraction has 17668 states and 53373 transitions. [2021-10-08 17:19:59,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:19:59,895 INFO L276 IsEmpty]: Start isEmpty. Operand 17668 states and 53373 transitions. [2021-10-08 17:19:59,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:19:59,924 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:19:59,924 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:19:59,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (113)] Forceful destruction successful, exit code 0 [2021-10-08 17:20:00,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:20:00,125 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:20:00,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:20:00,125 INFO L82 PathProgramCache]: Analyzing trace with hash 252135334, now seen corresponding path program 24 times [2021-10-08 17:20:00,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:20:00,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373122108] [2021-10-08 17:20:00,126 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:20:00,127 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:20:00,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:20:00,128 INFO L229 MonitoredProcess]: Starting monitored process 114 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:20:00,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (114)] Waiting until timeout for monitored process [2021-10-08 17:20:02,996 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:20:02,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:20:03,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:20:03,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:20:03,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:03,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:20:04,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:04,396 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:20:04,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373122108] [2021-10-08 17:20:04,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373122108] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:20:04,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:20:04,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:20:04,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890973139] [2021-10-08 17:20:04,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:20:04,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:20:04,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:20:04,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:20:04,398 INFO L87 Difference]: Start difference. First operand 17668 states and 53373 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:06,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:20:06,752 INFO L93 Difference]: Finished difference Result 18708 states and 56359 transitions. [2021-10-08 17:20:06,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-08 17:20:06,753 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:20:06,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:20:06,795 INFO L225 Difference]: With dead ends: 18708 [2021-10-08 17:20:06,796 INFO L226 Difference]: Without dead ends: 18428 [2021-10-08 17:20:06,796 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1203.1ms TimeCoverageRelationStatistics Valid=186, Invalid=1220, Unknown=0, NotChecked=0, Total=1406 [2021-10-08 17:20:06,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18428 states. [2021-10-08 17:20:07,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18428 to 17652. [2021-10-08 17:20:07,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17652 states, 17651 states have (on average 3.0215285252960173) internal successors, (53333), 17651 states have internal predecessors, (53333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:07,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17652 states to 17652 states and 53333 transitions. [2021-10-08 17:20:07,278 INFO L78 Accepts]: Start accepts. Automaton has 17652 states and 53333 transitions. Word has length 54 [2021-10-08 17:20:07,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:20:07,278 INFO L470 AbstractCegarLoop]: Abstraction has 17652 states and 53333 transitions. [2021-10-08 17:20:07,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:07,278 INFO L276 IsEmpty]: Start isEmpty. Operand 17652 states and 53333 transitions. [2021-10-08 17:20:07,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:20:07,306 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:20:07,307 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:20:07,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (114)] Forceful destruction successful, exit code 0 [2021-10-08 17:20:07,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:20:07,507 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:20:07,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:20:07,508 INFO L82 PathProgramCache]: Analyzing trace with hash 2029080260, now seen corresponding path program 25 times [2021-10-08 17:20:07,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:20:07,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988879671] [2021-10-08 17:20:07,508 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:20:07,509 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:20:07,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:20:07,510 INFO L229 MonitoredProcess]: Starting monitored process 115 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:20:07,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (115)] Waiting until timeout for monitored process [2021-10-08 17:20:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:20:10,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:20:10,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:20:10,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:10,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:20:11,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:11,628 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:20:11,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988879671] [2021-10-08 17:20:11,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988879671] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:20:11,628 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:20:11,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:20:11,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592989063] [2021-10-08 17:20:11,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:20:11,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:20:11,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:20:11,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:20:11,629 INFO L87 Difference]: Start difference. First operand 17652 states and 53333 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:13,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:20:13,492 INFO L93 Difference]: Finished difference Result 18706 states and 56345 transitions. [2021-10-08 17:20:13,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 17:20:13,493 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:20:13,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:20:13,535 INFO L225 Difference]: With dead ends: 18706 [2021-10-08 17:20:13,535 INFO L226 Difference]: Without dead ends: 18306 [2021-10-08 17:20:13,535 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 940.1ms TimeCoverageRelationStatistics Valid=131, Invalid=925, Unknown=0, NotChecked=0, Total=1056 [2021-10-08 17:20:13,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18306 states. [2021-10-08 17:20:13,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18306 to 17628. [2021-10-08 17:20:13,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17628 states, 17627 states have (on average 3.0220116866171214) internal successors, (53269), 17627 states have internal predecessors, (53269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:14,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17628 states to 17628 states and 53269 transitions. [2021-10-08 17:20:14,038 INFO L78 Accepts]: Start accepts. Automaton has 17628 states and 53269 transitions. Word has length 54 [2021-10-08 17:20:14,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:20:14,038 INFO L470 AbstractCegarLoop]: Abstraction has 17628 states and 53269 transitions. [2021-10-08 17:20:14,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:14,038 INFO L276 IsEmpty]: Start isEmpty. Operand 17628 states and 53269 transitions. [2021-10-08 17:20:14,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:20:14,068 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:20:14,068 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:20:14,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (115)] Forceful destruction successful, exit code 0 [2021-10-08 17:20:14,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 115 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:20:14,269 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:20:14,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:20:14,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1320165278, now seen corresponding path program 26 times [2021-10-08 17:20:14,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:20:14,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741113812] [2021-10-08 17:20:14,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:20:14,271 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:20:14,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:20:14,271 INFO L229 MonitoredProcess]: Starting monitored process 116 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:20:14,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (116)] Waiting until timeout for monitored process [2021-10-08 17:20:17,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:20:17,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:20:17,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:20:17,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:20:17,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:17,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:20:18,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:18,594 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:20:18,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741113812] [2021-10-08 17:20:18,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741113812] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:20:18,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:20:18,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:20:18,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968592423] [2021-10-08 17:20:18,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:20:18,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:20:18,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:20:18,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:20:18,596 INFO L87 Difference]: Start difference. First operand 17628 states and 53269 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:20,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:20:20,336 INFO L93 Difference]: Finished difference Result 19492 states and 58586 transitions. [2021-10-08 17:20:20,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-08 17:20:20,336 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:20:20,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:20:20,381 INFO L225 Difference]: With dead ends: 19492 [2021-10-08 17:20:20,381 INFO L226 Difference]: Without dead ends: 19080 [2021-10-08 17:20:20,381 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 886.4ms TimeCoverageRelationStatistics Valid=142, Invalid=980, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 17:20:20,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19080 states. [2021-10-08 17:20:20,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19080 to 17676. [2021-10-08 17:20:20,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17676 states, 17675 states have (on average 3.021725601131542) internal successors, (53409), 17675 states have internal predecessors, (53409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:20,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17676 states to 17676 states and 53409 transitions. [2021-10-08 17:20:20,897 INFO L78 Accepts]: Start accepts. Automaton has 17676 states and 53409 transitions. Word has length 54 [2021-10-08 17:20:20,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:20:20,898 INFO L470 AbstractCegarLoop]: Abstraction has 17676 states and 53409 transitions. [2021-10-08 17:20:20,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:20,898 INFO L276 IsEmpty]: Start isEmpty. Operand 17676 states and 53409 transitions. [2021-10-08 17:20:20,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:20:20,926 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:20:20,926 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:20:20,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (116)] Forceful destruction successful, exit code 0 [2021-10-08 17:20:21,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:20:21,133 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:20:21,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:20:21,134 INFO L82 PathProgramCache]: Analyzing trace with hash -2143310870, now seen corresponding path program 27 times [2021-10-08 17:20:21,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:20:21,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651174554] [2021-10-08 17:20:21,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:20:21,135 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:20:21,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:20:21,136 INFO L229 MonitoredProcess]: Starting monitored process 117 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:20:21,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (117)] Waiting until timeout for monitored process [2021-10-08 17:20:24,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:20:24,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:20:24,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:20:24,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:20:24,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:24,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:20:25,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:25,421 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:20:25,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651174554] [2021-10-08 17:20:25,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651174554] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:20:25,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:20:25,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:20:25,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259801037] [2021-10-08 17:20:25,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:20:25,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:20:25,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:20:25,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:20:25,423 INFO L87 Difference]: Start difference. First operand 17676 states and 53409 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:27,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:20:27,572 INFO L93 Difference]: Finished difference Result 19466 states and 58292 transitions. [2021-10-08 17:20:27,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-08 17:20:27,573 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:20:27,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:20:27,616 INFO L225 Difference]: With dead ends: 19466 [2021-10-08 17:20:27,616 INFO L226 Difference]: Without dead ends: 19124 [2021-10-08 17:20:27,616 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1189.2ms TimeCoverageRelationStatistics Valid=211, Invalid=1349, Unknown=0, NotChecked=0, Total=1560 [2021-10-08 17:20:27,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19124 states. [2021-10-08 17:20:27,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19124 to 17708. [2021-10-08 17:20:28,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17708 states, 17707 states have (on average 3.020782741288756) internal successors, (53489), 17707 states have internal predecessors, (53489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:28,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17708 states to 17708 states and 53489 transitions. [2021-10-08 17:20:28,135 INFO L78 Accepts]: Start accepts. Automaton has 17708 states and 53489 transitions. Word has length 54 [2021-10-08 17:20:28,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:20:28,135 INFO L470 AbstractCegarLoop]: Abstraction has 17708 states and 53489 transitions. [2021-10-08 17:20:28,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:28,136 INFO L276 IsEmpty]: Start isEmpty. Operand 17708 states and 53489 transitions. [2021-10-08 17:20:28,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:20:28,164 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:20:28,164 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:20:28,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (117)] Ended with exit code 0 [2021-10-08 17:20:28,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 117 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:20:28,365 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:20:28,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:20:28,366 INFO L82 PathProgramCache]: Analyzing trace with hash -327569586, now seen corresponding path program 28 times [2021-10-08 17:20:28,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:20:28,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108602263] [2021-10-08 17:20:28,367 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:20:28,367 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:20:28,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:20:28,370 INFO L229 MonitoredProcess]: Starting monitored process 118 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:20:28,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (118)] Waiting until timeout for monitored process [2021-10-08 17:20:31,115 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:20:31,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:20:31,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:20:31,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:20:31,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:31,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:20:32,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:32,508 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:20:32,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108602263] [2021-10-08 17:20:32,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2108602263] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:20:32,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:20:32,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:20:32,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412340600] [2021-10-08 17:20:32,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:20:32,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:20:32,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:20:32,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:20:32,510 INFO L87 Difference]: Start difference. First operand 17708 states and 53489 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:34,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:20:34,360 INFO L93 Difference]: Finished difference Result 19050 states and 57184 transitions. [2021-10-08 17:20:34,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 17:20:34,363 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:20:34,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:20:34,408 INFO L225 Difference]: With dead ends: 19050 [2021-10-08 17:20:34,408 INFO L226 Difference]: Without dead ends: 18770 [2021-10-08 17:20:34,408 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1009.3ms TimeCoverageRelationStatistics Valid=196, Invalid=1210, Unknown=0, NotChecked=0, Total=1406 [2021-10-08 17:20:34,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18770 states. [2021-10-08 17:20:34,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18770 to 17692. [2021-10-08 17:20:34,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17692 states, 17691 states have (on average 3.02125374484201) internal successors, (53449), 17691 states have internal predecessors, (53449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:34,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17692 states to 17692 states and 53449 transitions. [2021-10-08 17:20:34,970 INFO L78 Accepts]: Start accepts. Automaton has 17692 states and 53449 transitions. Word has length 54 [2021-10-08 17:20:34,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:20:34,971 INFO L470 AbstractCegarLoop]: Abstraction has 17692 states and 53449 transitions. [2021-10-08 17:20:34,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:34,971 INFO L276 IsEmpty]: Start isEmpty. Operand 17692 states and 53449 transitions. [2021-10-08 17:20:35,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:20:35,009 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:20:35,009 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:20:35,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (118)] Ended with exit code 0 [2021-10-08 17:20:35,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 118 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:20:35,224 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:20:35,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:20:35,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1449375340, now seen corresponding path program 29 times [2021-10-08 17:20:35,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:20:35,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280655903] [2021-10-08 17:20:35,226 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:20:35,226 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:20:35,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:20:35,227 INFO L229 MonitoredProcess]: Starting monitored process 119 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:20:35,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (119)] Waiting until timeout for monitored process [2021-10-08 17:20:38,220 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:20:38,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:20:38,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:20:38,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:20:38,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:38,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:20:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:39,605 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:20:39,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280655903] [2021-10-08 17:20:39,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280655903] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:20:39,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:20:39,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-08 17:20:39,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963830482] [2021-10-08 17:20:39,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-08 17:20:39,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:20:39,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-08 17:20:39,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-08 17:20:39,607 INFO L87 Difference]: Start difference. First operand 17692 states and 53449 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:41,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:20:41,448 INFO L93 Difference]: Finished difference Result 18754 states and 56311 transitions. [2021-10-08 17:20:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 17:20:41,449 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:20:41,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:20:41,490 INFO L225 Difference]: With dead ends: 18754 [2021-10-08 17:20:41,490 INFO L226 Difference]: Without dead ends: 18346 [2021-10-08 17:20:41,490 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1019.0ms TimeCoverageRelationStatistics Valid=152, Invalid=1108, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 17:20:41,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18346 states. [2021-10-08 17:20:41,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18346 to 17588. [2021-10-08 17:20:41,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17588 states, 17587 states have (on average 3.021493148348212) internal successors, (53139), 17587 states have internal predecessors, (53139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:42,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17588 states to 17588 states and 53139 transitions. [2021-10-08 17:20:42,022 INFO L78 Accepts]: Start accepts. Automaton has 17588 states and 53139 transitions. Word has length 54 [2021-10-08 17:20:42,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:20:42,022 INFO L470 AbstractCegarLoop]: Abstraction has 17588 states and 53139 transitions. [2021-10-08 17:20:42,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 22 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:42,023 INFO L276 IsEmpty]: Start isEmpty. Operand 17588 states and 53139 transitions. [2021-10-08 17:20:42,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:20:42,056 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:20:42,056 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:20:42,079 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (119)] Ended with exit code 0 [2021-10-08 17:20:42,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:20:42,257 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:20:42,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:20:42,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1026209718, now seen corresponding path program 30 times [2021-10-08 17:20:42,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:20:42,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107585371] [2021-10-08 17:20:42,259 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:20:42,259 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:20:42,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:20:42,260 INFO L229 MonitoredProcess]: Starting monitored process 120 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:20:42,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (120)] Waiting until timeout for monitored process [2021-10-08 17:20:45,107 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-08 17:20:45,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:20:45,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-08 17:20:45,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:20:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:45,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:20:45,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:45,979 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:20:45,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107585371] [2021-10-08 17:20:45,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107585371] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:20:45,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:20:45,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 21 [2021-10-08 17:20:45,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786350606] [2021-10-08 17:20:45,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-08 17:20:45,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:20:45,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-08 17:20:45,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2021-10-08 17:20:45,980 INFO L87 Difference]: Start difference. First operand 17588 states and 53139 transitions. Second operand has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 21 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:48,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:20:48,794 INFO L93 Difference]: Finished difference Result 18972 states and 57154 transitions. [2021-10-08 17:20:48,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-08 17:20:48,795 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 21 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:20:48,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:20:48,838 INFO L225 Difference]: With dead ends: 18972 [2021-10-08 17:20:48,839 INFO L226 Difference]: Without dead ends: 18972 [2021-10-08 17:20:48,839 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 1359.3ms TimeCoverageRelationStatistics Valid=278, Invalid=1702, Unknown=0, NotChecked=0, Total=1980 [2021-10-08 17:20:48,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18972 states. [2021-10-08 17:20:49,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18972 to 17580. [2021-10-08 17:20:49,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17580 states, 17579 states have (on average 3.0215029296319473) internal successors, (53115), 17579 states have internal predecessors, (53115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:49,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17580 states to 17580 states and 53115 transitions. [2021-10-08 17:20:49,178 INFO L78 Accepts]: Start accepts. Automaton has 17580 states and 53115 transitions. Word has length 54 [2021-10-08 17:20:49,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:20:49,178 INFO L470 AbstractCegarLoop]: Abstraction has 17580 states and 53115 transitions. [2021-10-08 17:20:49,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 21 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:49,178 INFO L276 IsEmpty]: Start isEmpty. Operand 17580 states and 53115 transitions. [2021-10-08 17:20:49,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:20:49,363 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:20:49,363 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:20:49,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (120)] Forceful destruction successful, exit code 0 [2021-10-08 17:20:49,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 120 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:20:49,570 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:20:49,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:20:49,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1065631764, now seen corresponding path program 31 times [2021-10-08 17:20:49,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:20:49,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642858768] [2021-10-08 17:20:49,571 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 17:20:49,571 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:20:49,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:20:49,575 INFO L229 MonitoredProcess]: Starting monitored process 121 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:20:49,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (121)] Waiting until timeout for monitored process [2021-10-08 17:20:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:20:52,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-08 17:20:52,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:20:52,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:52,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:20:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:53,210 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:20:53,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642858768] [2021-10-08 17:20:53,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642858768] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:20:53,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:20:53,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2021-10-08 17:20:53,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259508334] [2021-10-08 17:20:53,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-08 17:20:53,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:20:53,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-08 17:20:53,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-10-08 17:20:53,211 INFO L87 Difference]: Start difference. First operand 17580 states and 53115 transitions. Second operand has 20 states, 20 states have (on average 3.85) internal successors, (77), 19 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:55,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:20:55,586 INFO L93 Difference]: Finished difference Result 18502 states and 55727 transitions. [2021-10-08 17:20:55,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-08 17:20:55,587 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.85) internal successors, (77), 19 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:20:55,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:20:55,629 INFO L225 Difference]: With dead ends: 18502 [2021-10-08 17:20:55,629 INFO L226 Difference]: Without dead ends: 18502 [2021-10-08 17:20:55,629 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 1095.9ms TimeCoverageRelationStatistics Valid=263, Invalid=1629, Unknown=0, NotChecked=0, Total=1892 [2021-10-08 17:20:55,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18502 states. [2021-10-08 17:20:55,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18502 to 17604. [2021-10-08 17:20:55,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17604 states, 17603 states have (on average 3.021473612452423) internal successors, (53187), 17603 states have internal predecessors, (53187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:55,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17604 states to 17604 states and 53187 transitions. [2021-10-08 17:20:55,971 INFO L78 Accepts]: Start accepts. Automaton has 17604 states and 53187 transitions. Word has length 54 [2021-10-08 17:20:55,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:20:55,972 INFO L470 AbstractCegarLoop]: Abstraction has 17604 states and 53187 transitions. [2021-10-08 17:20:55,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.85) internal successors, (77), 19 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:20:55,972 INFO L276 IsEmpty]: Start isEmpty. Operand 17604 states and 53187 transitions. [2021-10-08 17:20:56,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:20:56,001 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:20:56,001 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:20:56,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (121)] Forceful destruction successful, exit code 0 [2021-10-08 17:20:56,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 121 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:20:56,202 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:20:56,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:20:56,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1863331178, now seen corresponding path program 32 times [2021-10-08 17:20:56,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:20:56,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625076325] [2021-10-08 17:20:56,203 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:20:56,203 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:20:56,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:20:56,205 INFO L229 MonitoredProcess]: Starting monitored process 122 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:20:56,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (122)] Waiting until timeout for monitored process [2021-10-08 17:20:59,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:20:59,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:20:59,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:20:59,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:20:59,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:20:59,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:21:00,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:21:00,529 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:21:00,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625076325] [2021-10-08 17:21:00,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625076325] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:21:00,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:21:00,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-08 17:21:00,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541884594] [2021-10-08 17:21:00,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 17:21:00,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:21:00,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 17:21:00,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:21:00,532 INFO L87 Difference]: Start difference. First operand 17604 states and 53187 transitions. Second operand has 25 states, 25 states have (on average 3.72) internal successors, (93), 24 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:21:03,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:21:03,096 INFO L93 Difference]: Finished difference Result 18914 states and 56744 transitions. [2021-10-08 17:21:03,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-08 17:21:03,097 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.72) internal successors, (93), 24 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:21:03,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:21:03,138 INFO L225 Difference]: With dead ends: 18914 [2021-10-08 17:21:03,138 INFO L226 Difference]: Without dead ends: 18572 [2021-10-08 17:21:03,138 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1390.6ms TimeCoverageRelationStatistics Valid=203, Invalid=1437, Unknown=0, NotChecked=0, Total=1640 [2021-10-08 17:21:03,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18572 states. [2021-10-08 17:21:03,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18572 to 17612. [2021-10-08 17:21:03,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17612 states, 17611 states have (on average 3.020555334733973) internal successors, (53195), 17611 states have internal predecessors, (53195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:21:03,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17612 states to 17612 states and 53195 transitions. [2021-10-08 17:21:03,467 INFO L78 Accepts]: Start accepts. Automaton has 17612 states and 53195 transitions. Word has length 54 [2021-10-08 17:21:03,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:21:03,468 INFO L470 AbstractCegarLoop]: Abstraction has 17612 states and 53195 transitions. [2021-10-08 17:21:03,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.72) internal successors, (93), 24 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:21:03,468 INFO L276 IsEmpty]: Start isEmpty. Operand 17612 states and 53195 transitions. [2021-10-08 17:21:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:21:03,496 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:21:03,497 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:21:03,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (122)] Forceful destruction successful, exit code 0 [2021-10-08 17:21:03,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:21:03,697 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:21:03,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:21:03,698 INFO L82 PathProgramCache]: Analyzing trace with hash -615894834, now seen corresponding path program 33 times [2021-10-08 17:21:03,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:21:03,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45781285] [2021-10-08 17:21:03,699 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:21:03,699 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:21:03,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:21:03,701 INFO L229 MonitoredProcess]: Starting monitored process 123 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:21:03,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (123)] Waiting until timeout for monitored process [2021-10-08 17:21:06,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:21:06,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:21:06,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:21:06,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:21:07,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:21:07,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:21:08,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:21:08,196 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:21:08,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45781285] [2021-10-08 17:21:08,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45781285] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:21:08,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:21:08,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-08 17:21:08,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429156734] [2021-10-08 17:21:08,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 17:21:08,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:21:08,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 17:21:08,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:21:08,197 INFO L87 Difference]: Start difference. First operand 17612 states and 53195 transitions. Second operand has 25 states, 25 states have (on average 3.72) internal successors, (93), 24 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:21:10,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:21:10,577 INFO L93 Difference]: Finished difference Result 18536 states and 55745 transitions. [2021-10-08 17:21:10,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 17:21:10,578 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.72) internal successors, (93), 24 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:21:10,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:21:10,755 INFO L225 Difference]: With dead ends: 18536 [2021-10-08 17:21:10,755 INFO L226 Difference]: Without dead ends: 18256 [2021-10-08 17:21:10,755 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1371.4ms TimeCoverageRelationStatistics Valid=200, Invalid=1440, Unknown=0, NotChecked=0, Total=1640 [2021-10-08 17:21:10,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18256 states. [2021-10-08 17:21:10,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18256 to 17596. [2021-10-08 17:21:11,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17596 states, 17595 states have (on average 3.0210287013356067) internal successors, (53155), 17595 states have internal predecessors, (53155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:21:11,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17596 states to 17596 states and 53155 transitions. [2021-10-08 17:21:11,063 INFO L78 Accepts]: Start accepts. Automaton has 17596 states and 53155 transitions. Word has length 54 [2021-10-08 17:21:11,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:21:11,063 INFO L470 AbstractCegarLoop]: Abstraction has 17596 states and 53155 transitions. [2021-10-08 17:21:11,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.72) internal successors, (93), 24 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:21:11,064 INFO L276 IsEmpty]: Start isEmpty. Operand 17596 states and 53155 transitions. [2021-10-08 17:21:11,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:21:11,092 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:21:11,093 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:21:11,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (123)] Forceful destruction successful, exit code 0 [2021-10-08 17:21:11,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 123 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:21:11,293 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:21:11,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:21:11,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1161050092, now seen corresponding path program 34 times [2021-10-08 17:21:11,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:21:11,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106463069] [2021-10-08 17:21:11,296 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 17:21:11,296 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:21:11,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:21:11,297 INFO L229 MonitoredProcess]: Starting monitored process 124 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:21:11,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (124)] Waiting until timeout for monitored process [2021-10-08 17:21:14,603 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 17:21:14,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:21:14,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:21:14,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:21:15,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:21:15,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:21:15,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:21:15,935 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:21:15,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106463069] [2021-10-08 17:21:15,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106463069] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:21:15,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:21:15,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-08 17:21:15,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891004097] [2021-10-08 17:21:15,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 17:21:15,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:21:15,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 17:21:15,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:21:15,936 INFO L87 Difference]: Start difference. First operand 17596 states and 53155 transitions. Second operand has 25 states, 25 states have (on average 3.72) internal successors, (93), 24 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:21:17,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:21:17,947 INFO L93 Difference]: Finished difference Result 18534 states and 55731 transitions. [2021-10-08 17:21:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 17:21:17,948 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.72) internal successors, (93), 24 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:21:17,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:21:17,989 INFO L225 Difference]: With dead ends: 18534 [2021-10-08 17:21:17,989 INFO L226 Difference]: Without dead ends: 18134 [2021-10-08 17:21:17,990 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1078.8ms TimeCoverageRelationStatistics Valid=145, Invalid=1115, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 17:21:18,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18134 states. [2021-10-08 17:21:18,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18134 to 17572. [2021-10-08 17:21:18,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17572 states, 17571 states have (on average 3.0215127198224345) internal successors, (53091), 17571 states have internal predecessors, (53091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:21:18,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17572 states to 17572 states and 53091 transitions. [2021-10-08 17:21:18,444 INFO L78 Accepts]: Start accepts. Automaton has 17572 states and 53091 transitions. Word has length 54 [2021-10-08 17:21:18,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:21:18,445 INFO L470 AbstractCegarLoop]: Abstraction has 17572 states and 53091 transitions. [2021-10-08 17:21:18,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.72) internal successors, (93), 24 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:21:18,445 INFO L276 IsEmpty]: Start isEmpty. Operand 17572 states and 53091 transitions. [2021-10-08 17:21:18,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:21:18,473 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:21:18,473 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:21:18,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (124)] Forceful destruction successful, exit code 0 [2021-10-08 17:21:18,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:21:18,674 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:21:18,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:21:18,675 INFO L82 PathProgramCache]: Analyzing trace with hash 2106771850, now seen corresponding path program 35 times [2021-10-08 17:21:18,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:21:18,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42732579] [2021-10-08 17:21:18,676 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 17:21:18,676 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:21:18,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:21:18,677 INFO L229 MonitoredProcess]: Starting monitored process 125 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:21:18,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (125)] Waiting until timeout for monitored process [2021-10-08 17:21:21,917 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:21:21,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:21:21,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 17:21:21,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:21:22,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:21:22,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:21:23,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:21:23,203 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:21:23,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42732579] [2021-10-08 17:21:23,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42732579] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:21:23,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:21:23,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-08 17:21:23,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554235425] [2021-10-08 17:21:23,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 17:21:23,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:21:23,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 17:21:23,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-10-08 17:21:23,205 INFO L87 Difference]: Start difference. First operand 17572 states and 53091 transitions. Second operand has 25 states, 25 states have (on average 3.72) internal successors, (93), 24 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:21:25,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:21:25,248 INFO L93 Difference]: Finished difference Result 19566 states and 58615 transitions. [2021-10-08 17:21:25,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-08 17:21:25,249 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.72) internal successors, (93), 24 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-08 17:21:25,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:21:25,291 INFO L225 Difference]: With dead ends: 19566 [2021-10-08 17:21:25,292 INFO L226 Difference]: Without dead ends: 19154 [2021-10-08 17:21:25,292 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1100.4ms TimeCoverageRelationStatistics Valid=172, Invalid=1310, Unknown=0, NotChecked=0, Total=1482 [2021-10-08 17:21:25,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19154 states. [2021-10-08 17:21:25,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19154 to 17596. [2021-10-08 17:21:25,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17596 states, 17595 states have (on average 3.021142369991475) internal successors, (53157), 17595 states have internal predecessors, (53157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:21:25,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17596 states to 17596 states and 53157 transitions. [2021-10-08 17:21:25,946 INFO L78 Accepts]: Start accepts. Automaton has 17596 states and 53157 transitions. Word has length 54 [2021-10-08 17:21:25,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:21:25,946 INFO L470 AbstractCegarLoop]: Abstraction has 17596 states and 53157 transitions. [2021-10-08 17:21:25,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.72) internal successors, (93), 24 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:21:25,946 INFO L276 IsEmpty]: Start isEmpty. Operand 17596 states and 53157 transitions. [2021-10-08 17:21:25,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-08 17:21:25,988 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:21:25,988 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:21:26,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (125)] Forceful destruction successful, exit code 0 [2021-10-08 17:21:26,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 125 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:21:26,200 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:21:26,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:21:26,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1283626258, now seen corresponding path program 36 times [2021-10-08 17:21:26,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:21:26,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383533079] [2021-10-08 17:21:26,201 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 17:21:26,201 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:21:26,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:21:26,202 INFO L229 MonitoredProcess]: Starting monitored process 126 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:21:26,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (126)] Waiting until timeout for monitored process Received shutdown request... [2021-10-08 17:21:27,364 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-08 17:21:27,391 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (126)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-08 17:21:28,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-08 17:21:28,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (126)] Forceful destruction successful, exit code 0 [2021-10-08 17:21:28,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2021-10-08 17:21:28,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 126 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:21:28,601 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. [2021-10-08 17:21:28,604 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-08 17:21:28,604 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-08 17:21:28,604 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-08 17:21:28,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-08 17:21:28,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-08 17:21:28,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-08 17:21:28,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-08 17:21:28,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-08 17:21:28,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-08 17:21:28,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-08 17:21:28,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-08 17:21:28,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-08 17:21:28,606 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-08 17:21:28,606 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 17:21:28,606 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 17:21:28,606 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-08 17:21:28,610 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 17:21:28,610 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 17:21:28,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 05:21:28 BasicIcfg [2021-10-08 17:21:28,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 17:21:28,613 INFO L168 Benchmark]: Toolchain (without parser) took 744672.67 ms. Allocated memory was 158.3 MB in the beginning and 7.2 GB in the end (delta: 7.1 GB). Free memory was 133.2 MB in the beginning and 5.7 GB in the end (delta: -5.6 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. [2021-10-08 17:21:28,613 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 158.3 MB. Free memory is still 129.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-08 17:21:28,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.43 ms. Allocated memory is still 158.3 MB. Free memory was 132.8 MB in the beginning and 120.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-08 17:21:28,614 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.12 ms. Allocated memory is still 158.3 MB. Free memory was 120.6 MB in the beginning and 118.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 17:21:28,614 INFO L168 Benchmark]: Boogie Preprocessor took 57.01 ms. Allocated memory is still 158.3 MB. Free memory was 118.5 MB in the beginning and 116.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 17:21:28,614 INFO L168 Benchmark]: RCFGBuilder took 788.77 ms. Allocated memory is still 158.3 MB. Free memory was 116.8 MB in the beginning and 132.7 MB in the end (delta: -15.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. [2021-10-08 17:21:28,614 INFO L168 Benchmark]: TraceAbstraction took 743307.99 ms. Allocated memory was 158.3 MB in the beginning and 7.2 GB in the end (delta: 7.1 GB). Free memory was 132.2 MB in the beginning and 5.7 GB in the end (delta: -5.6 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. [2021-10-08 17:21:28,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 158.3 MB. Free memory is still 129.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 422.43 ms. Allocated memory is still 158.3 MB. Free memory was 132.8 MB in the beginning and 120.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 61.12 ms. Allocated memory is still 158.3 MB. Free memory was 120.6 MB in the beginning and 118.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 57.01 ms. Allocated memory is still 158.3 MB. Free memory was 118.5 MB in the beginning and 116.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 788.77 ms. Allocated memory is still 158.3 MB. Free memory was 116.8 MB in the beginning and 132.7 MB in the end (delta: -15.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 743307.99 ms. Allocated memory was 158.3 MB in the beginning and 7.2 GB in the end (delta: 7.1 GB). Free memory was 132.2 MB in the beginning and 5.7 GB in the end (delta: -5.6 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13458.9ms, 239 PlacesBefore, 90 PlacesAfterwards, 249 TransitionsBefore, 91 TransitionsAfterwards, 17664 CoEnabledTransitionPairs, 8 FixpointIterations, 83 TrivialSequentialCompositions, 99 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 52 ConcurrentYvCompositions, 9 ChoiceCompositions, 244 TotalNumberOfCompositions, 63179 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28185, positive: 27403, positive conditional: 0, positive unconditional: 27403, negative: 782, negative conditional: 0, negative unconditional: 782, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13365, positive: 13199, positive conditional: 0, positive unconditional: 13199, negative: 166, negative conditional: 0, negative unconditional: 166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13365, positive: 13093, positive conditional: 0, positive unconditional: 13093, negative: 272, negative conditional: 0, negative unconditional: 272, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 272, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 166, negative conditional: 0, negative unconditional: 166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 573, positive: 104, positive conditional: 0, positive unconditional: 104, negative: 469, negative conditional: 0, negative unconditional: 469, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28185, positive: 14204, positive conditional: 0, positive unconditional: 14204, negative: 616, negative conditional: 0, negative unconditional: 616, unknown: 13365, unknown conditional: 0, unknown unconditional: 13365] , Statistics on independence cache: Total cache size (in pairs): 1527, Positive cache size: 1439, Positive conditional cache size: 0, Positive unconditional cache size: 1439, Negative cache size: 88, Negative conditional cache size: 0, Negative unconditional cache size: 88 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 55 with TraceHistMax 1,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 356 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 743060.0ms, OverallIterations: 125, TraceHistogramMax: 1, EmptinessCheckTime: 4878.6ms, AutomataDifference: 309486.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14818.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 21105 SDtfs, 47246 SDslu, 199199 SDs, 0 SdLazy, 163569 SolverSat, 6051 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 153945.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14278 GetRequests, 10377 SyntacticMatches, 0 SemanticMatches, 3901 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26143 ImplicationChecksByTransitivity, 151967.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=24699occurred in iteration=0, InterpolantAutomatonStates: 2688, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 68417.4ms AutomataMinimizationTime, 124 MinimizatonAttempts, 264442 StatesRemovedByMinimization, 113 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1610.3ms SsaConstructionTime, 17039.0ms SatisfiabilityAnalysisTime, 131765.3ms InterpolantComputationTime, 6314 NumberOfCodeBlocks, 6314 NumberOfCodeBlocksAsserted, 124 NumberOfCheckSat, 12380 ConstructedInterpolants, 2 QuantifiedInterpolants, 79753 SizeOfPredicates, 2079 NumberOfNonLiveVariables, 17710 ConjunctsInSsa, 1883 ConjunctsInUnsatCore, 248 InterpolantComputations, 248 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown