/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 [2021-10-07 15:45:10,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 15:45:10,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 15:45:10,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-07 15:45:10,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 15:45:10,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 15:45:10,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 15:45:10,504 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-07 15:45:10,555 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 15:45:10,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 15:45:10,556 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 15:45:10,556 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 15:45:10,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 15:45:10,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 15:45:10,561 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 15:45:10,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 15:45:10,562 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 15:45:10,562 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 15:45:10,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 15:45:10,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 15:45:10,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 15:45:10,564 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-07 15:45:10,564 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-07 15:45:10,565 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-07 15:45:10,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 15:45:10,565 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-07 15:45:10,565 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-07 15:45:10,565 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-07 15:45:10,566 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 15:45:10,566 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 15:45:10,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 15:45:10,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 15:45:10,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 15:45:10,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:45:10,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 15:45:10,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 15:45:10,567 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-07 15:45:10,568 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-07 15:45:10,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 15:45:10,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-07 15:45:10,569 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 15:45:11,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 15:45:11,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 15:45:11,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 15:45:11,066 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 15:45:11,067 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 15:45:11,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2021-10-07 15:45:11,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55df48a84/2152481889ea4d2386d3ab07cc7924ad/FLAG41906e3fd [2021-10-07 15:45:11,774 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 15:45:11,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2021-10-07 15:45:11,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55df48a84/2152481889ea4d2386d3ab07cc7924ad/FLAG41906e3fd [2021-10-07 15:45:12,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55df48a84/2152481889ea4d2386d3ab07cc7924ad [2021-10-07 15:45:12,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 15:45:12,157 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-07 15:45:12,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 15:45:12,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 15:45:12,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 15:45:12,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:45:12" (1/1) ... [2021-10-07 15:45:12,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21df9d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:45:12, skipping insertion in model container [2021-10-07 15:45:12,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:45:12" (1/1) ... [2021-10-07 15:45:12,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 15:45:12,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:45:12,510 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] [2021-10-07 15:45:12,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:45:12,528 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 15:45:12,563 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] [2021-10-07 15:45:12,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:45:12,599 INFO L208 MainTranslator]: Completed translation [2021-10-07 15:45:12,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:45:12 WrapperNode [2021-10-07 15:45:12,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 15:45:12,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 15:45:12,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 15:45:12,602 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 15:45:12,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:45:12" (1/1) ... [2021-10-07 15:45:12,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:45:12" (1/1) ... [2021-10-07 15:45:12,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 15:45:12,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 15:45:12,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 15:45:12,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 15:45:12,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:45:12" (1/1) ... [2021-10-07 15:45:12,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:45:12" (1/1) ... [2021-10-07 15:45:12,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:45:12" (1/1) ... [2021-10-07 15:45:12,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:45:12" (1/1) ... [2021-10-07 15:45:12,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:45:12" (1/1) ... [2021-10-07 15:45:12,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:45:12" (1/1) ... [2021-10-07 15:45:12,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:45:12" (1/1) ... [2021-10-07 15:45:12,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 15:45:12,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 15:45:12,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 15:45:12,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 15:45:12,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:45:12" (1/1) ... [2021-10-07 15:45:12,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:45:12,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:45:12,819 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) [2021-10-07 15:45:12,837 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 [2021-10-07 15:45:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 15:45:12,883 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 15:45:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 15:45:12,883 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 15:45:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-07 15:45:12,884 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-07 15:45:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-07 15:45:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 15:45:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-07 15:45:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 15:45:12,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 15:45:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 15:45:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-07 15:45:12,887 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 15:45:13,545 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 15:45:13,545 INFO L299 CfgBuilder]: Removed 32 assume(true) statements. [2021-10-07 15:45:13,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:45:13 BoogieIcfgContainer [2021-10-07 15:45:13,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 15:45:13,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 15:45:13,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 15:45:13,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 15:45:13,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:45:12" (1/3) ... [2021-10-07 15:45:13,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633b6c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:45:13, skipping insertion in model container [2021-10-07 15:45:13,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:45:12" (2/3) ... [2021-10-07 15:45:13,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633b6c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:45:13, skipping insertion in model container [2021-10-07 15:45:13,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:45:13" (3/3) ... [2021-10-07 15:45:13,558 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2021-10-07 15:45:13,565 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 15:45:13,565 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-10-07 15:45:13,565 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 15:45:13,646 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,647 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,647 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,647 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,648 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,648 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,648 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,649 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,649 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,649 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,649 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,650 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,651 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,651 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,651 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,652 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,652 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,653 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,653 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,653 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,654 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,654 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,654 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,654 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,655 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,655 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,655 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,656 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,656 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,657 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,657 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,658 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,659 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,659 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,659 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,659 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,659 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,660 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,660 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,660 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,660 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,661 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,661 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,662 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,662 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,663 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,663 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,663 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,664 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,664 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,664 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,665 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,665 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,665 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,665 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,666 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,666 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,666 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,666 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,667 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,667 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,668 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,668 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,668 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,669 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,669 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,670 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,670 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,671 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,671 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,673 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,673 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,678 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,678 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,678 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,679 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,679 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,679 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,679 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,681 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,681 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,682 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,682 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,682 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,682 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,683 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,683 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,683 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,684 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,684 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,684 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,684 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,685 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,685 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,686 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,686 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,686 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,687 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,687 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,687 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,687 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,688 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,688 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,688 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,688 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,689 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,689 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,690 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,690 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,691 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,691 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,691 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,692 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,692 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,692 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,692 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,693 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,693 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,693 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,693 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,694 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,694 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,694 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,697 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,698 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,698 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,698 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,699 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,699 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,699 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,699 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,700 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,700 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,700 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,700 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,700 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,701 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,701 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,707 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,707 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,708 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,708 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,708 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,709 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,709 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,709 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,709 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,712 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,712 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,713 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,713 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,713 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,714 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,716 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,716 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,717 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,717 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,717 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,717 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,718 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,718 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,718 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,719 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,722 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,722 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,723 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,723 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,723 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,723 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,724 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,724 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,724 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,725 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,728 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,728 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,729 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,729 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,729 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,729 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,730 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,732 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,732 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,733 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,733 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,733 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,743 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,747 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,747 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,748 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,748 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,748 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,749 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,758 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,764 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,768 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,768 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,768 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,769 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,769 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,769 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:45:13,786 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-07 15:45:13,850 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 15:45:13,858 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 [2021-10-07 15:45:13,858 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-10-07 15:45:13,883 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 15:45:13,896 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 249 transitions, 522 flow [2021-10-07 15:45:13,899 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 249 transitions, 522 flow [2021-10-07 15:45:13,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 249 transitions, 522 flow [2021-10-07 15:45:14,013 INFO L129 PetriNetUnfolder]: 20/246 cut-off events. [2021-10-07 15:45:14,013 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-07 15:45:14,034 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. [2021-10-07 15:45:14,052 INFO L116 LiptonReduction]: Number of co-enabled transitions 17664 [2021-10-07 15:45:28,282 INFO L131 LiptonReduction]: Checked pairs total: 63179 [2021-10-07 15:45:28,282 INFO L133 LiptonReduction]: Total number of compositions: 244 [2021-10-07 15:45:28,293 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 91 transitions, 206 flow [2021-10-07 15:45:29,693 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) [2021-10-07 15:45:29,757 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) [2021-10-07 15:45:29,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-07 15:45:29,763 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:45:29,826 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-07 15:45:29,826 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:45:29,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:45:29,853 INFO L82 PathProgramCache]: Analyzing trace with hash 993, now seen corresponding path program 1 times [2021-10-07 15:45:29,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:45:29,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958013291] [2021-10-07 15:45:29,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:45:29,873 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:45:29,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:45:29,877 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) [2021-10-07 15:45:29,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-07 15:45:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:45:29,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-07 15:45:29,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:45:29,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:29,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:45:29,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:29,986 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:45:29,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958013291] [2021-10-07 15:45:29,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958013291] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:45:29,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:45:29,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-07 15:45:29,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863443155] [2021-10-07 15:45:29,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-07 15:45:29,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:45:30,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-07 15:45:30,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-07 15:45:30,067 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) [2021-10-07 15:45:30,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:45:30,880 INFO L93 Difference]: Finished difference Result 24696 states and 94500 transitions. [2021-10-07 15:45:30,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-07 15:45:30,882 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 [2021-10-07 15:45:30,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:45:31,515 INFO L225 Difference]: With dead ends: 24696 [2021-10-07 15:45:31,518 INFO L226 Difference]: Without dead ends: 24696 [2021-10-07 15:45:31,520 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 [2021-10-07 15:45:31,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24696 states. [2021-10-07 15:45:33,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24696 to 24696. [2021-10-07 15:45:33,292 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) [2021-10-07 15:45:33,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24696 states to 24696 states and 94500 transitions. [2021-10-07 15:45:33,723 INFO L78 Accepts]: Start accepts. Automaton has 24696 states and 94500 transitions. Word has length 1 [2021-10-07 15:45:33,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:45:33,724 INFO L470 AbstractCegarLoop]: Abstraction has 24696 states and 94500 transitions. [2021-10-07 15:45:33,724 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) [2021-10-07 15:45:33,725 INFO L276 IsEmpty]: Start isEmpty. Operand 24696 states and 94500 transitions. [2021-10-07 15:45:33,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:45:33,725 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:45:33,725 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:45:33,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-07 15:45:33,928 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 [2021-10-07 15:45:33,929 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:45:33,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:45:33,930 INFO L82 PathProgramCache]: Analyzing trace with hash 976375, now seen corresponding path program 1 times [2021-10-07 15:45:33,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:45:33,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109748123] [2021-10-07 15:45:33,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:45:33,933 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:45:33,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:45:33,934 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) [2021-10-07 15:45:33,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-07 15:45:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:45:34,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 15:45:34,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:45:34,202 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-07 15:45:34,203 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 [2021-10-07 15:45:34,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:34,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:45:34,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:34,269 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:45:34,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109748123] [2021-10-07 15:45:34,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109748123] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:45:34,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:45:34,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:45:34,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119096356] [2021-10-07 15:45:34,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:45:34,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:45:34,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:45:34,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:45:34,278 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) [2021-10-07 15:45:34,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:45:34,937 INFO L93 Difference]: Finished difference Result 24355 states and 93457 transitions. [2021-10-07 15:45:34,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:45:34,942 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 [2021-10-07 15:45:34,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:45:35,167 INFO L225 Difference]: With dead ends: 24355 [2021-10-07 15:45:35,168 INFO L226 Difference]: Without dead ends: 24355 [2021-10-07 15:45:35,169 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:45:35,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24355 states. [2021-10-07 15:45:36,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24355 to 24355. [2021-10-07 15:45:36,491 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) [2021-10-07 15:45:36,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24355 states to 24355 states and 93457 transitions. [2021-10-07 15:45:36,870 INFO L78 Accepts]: Start accepts. Automaton has 24355 states and 93457 transitions. Word has length 3 [2021-10-07 15:45:36,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:45:36,871 INFO L470 AbstractCegarLoop]: Abstraction has 24355 states and 93457 transitions. [2021-10-07 15:45:36,871 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) [2021-10-07 15:45:36,871 INFO L276 IsEmpty]: Start isEmpty. Operand 24355 states and 93457 transitions. [2021-10-07 15:45:36,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:45:36,872 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:45:36,872 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:45:36,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-07 15:45:37,081 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 [2021-10-07 15:45:37,082 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:45:37,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:45:37,085 INFO L82 PathProgramCache]: Analyzing trace with hash 976376, now seen corresponding path program 1 times [2021-10-07 15:45:37,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:45:37,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108067783] [2021-10-07 15:45:37,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:45:37,086 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:45:37,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:45:37,088 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) [2021-10-07 15:45:37,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-07 15:45:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:45:37,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:45:37,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:45:37,353 INFO L354 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2021-10-07 15:45:37,353 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 [2021-10-07 15:45:37,365 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 [2021-10-07 15:45:37,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:37,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:45:37,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:37,672 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:45:37,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108067783] [2021-10-07 15:45:37,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108067783] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:45:37,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:45:37,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:45:37,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381324384] [2021-10-07 15:45:37,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:45:37,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:45:37,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:45:37,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:45:37,686 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) [2021-10-07 15:45:38,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:45:38,146 INFO L93 Difference]: Finished difference Result 24014 states and 92414 transitions. [2021-10-07 15:45:38,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:45:38,148 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 [2021-10-07 15:45:38,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:45:38,376 INFO L225 Difference]: With dead ends: 24014 [2021-10-07 15:45:38,377 INFO L226 Difference]: Without dead ends: 24014 [2021-10-07 15:45:38,377 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:45:38,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24014 states. [2021-10-07 15:45:39,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24014 to 24014. [2021-10-07 15:45:39,797 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) [2021-10-07 15:45:39,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24014 states to 24014 states and 92414 transitions. [2021-10-07 15:45:39,938 INFO L78 Accepts]: Start accepts. Automaton has 24014 states and 92414 transitions. Word has length 3 [2021-10-07 15:45:39,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:45:39,939 INFO L470 AbstractCegarLoop]: Abstraction has 24014 states and 92414 transitions. [2021-10-07 15:45:39,939 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) [2021-10-07 15:45:39,939 INFO L276 IsEmpty]: Start isEmpty. Operand 24014 states and 92414 transitions. [2021-10-07 15:45:39,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:45:39,940 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:45:39,940 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:45:39,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-07 15:45:40,151 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 [2021-10-07 15:45:40,153 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:45:40,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:45:40,155 INFO L82 PathProgramCache]: Analyzing trace with hash 938318423, now seen corresponding path program 1 times [2021-10-07 15:45:40,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:45:40,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66941122] [2021-10-07 15:45:40,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:45:40,156 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:45:40,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:45:40,157 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) [2021-10-07 15:45:40,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-07 15:45:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:45:40,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:45:40,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:45:40,393 INFO L354 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2021-10-07 15:45:40,394 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 [2021-10-07 15:45:40,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:40,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:45:40,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:40,579 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:45:40,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66941122] [2021-10-07 15:45:40,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66941122] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:45:40,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:45:40,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:45:40,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684341047] [2021-10-07 15:45:40,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:45:40,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:45:40,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:45:40,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:45:40,582 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) [2021-10-07 15:45:41,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:45:41,149 INFO L93 Difference]: Finished difference Result 23690 states and 91424 transitions. [2021-10-07 15:45:41,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:45:41,150 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 [2021-10-07 15:45:41,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:45:41,334 INFO L225 Difference]: With dead ends: 23690 [2021-10-07 15:45:41,334 INFO L226 Difference]: Without dead ends: 23690 [2021-10-07 15:45:41,335 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:45:41,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23690 states. [2021-10-07 15:45:42,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23690 to 23690. [2021-10-07 15:45:42,505 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) [2021-10-07 15:45:42,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23690 states to 23690 states and 91424 transitions. [2021-10-07 15:45:42,948 INFO L78 Accepts]: Start accepts. Automaton has 23690 states and 91424 transitions. Word has length 5 [2021-10-07 15:45:42,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:45:42,951 INFO L470 AbstractCegarLoop]: Abstraction has 23690 states and 91424 transitions. [2021-10-07 15:45:42,952 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) [2021-10-07 15:45:42,962 INFO L276 IsEmpty]: Start isEmpty. Operand 23690 states and 91424 transitions. [2021-10-07 15:45:42,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:45:42,967 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:45:42,967 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:45:42,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-07 15:45:43,168 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 [2021-10-07 15:45:43,169 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:45:43,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:45:43,170 INFO L82 PathProgramCache]: Analyzing trace with hash 938318425, now seen corresponding path program 1 times [2021-10-07 15:45:43,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:45:43,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737027042] [2021-10-07 15:45:43,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:45:43,172 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:45:43,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:45:43,173 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) [2021-10-07 15:45:43,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-07 15:45:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:45:43,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 15:45:43,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:45:43,262 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-07 15:45:43,263 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 [2021-10-07 15:45:43,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:43,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:45:43,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:43,330 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:45:43,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737027042] [2021-10-07 15:45:43,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737027042] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:45:43,331 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:45:43,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:45:43,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020416739] [2021-10-07 15:45:43,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:45:43,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:45:43,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:45:43,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:45:43,335 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) [2021-10-07 15:45:43,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:45:43,586 INFO L93 Difference]: Finished difference Result 23366 states and 90434 transitions. [2021-10-07 15:45:43,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:45:43,587 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 [2021-10-07 15:45:43,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:45:43,723 INFO L225 Difference]: With dead ends: 23366 [2021-10-07 15:45:43,723 INFO L226 Difference]: Without dead ends: 23366 [2021-10-07 15:45:43,723 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:45:43,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23366 states. [2021-10-07 15:45:44,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23366 to 23366. [2021-10-07 15:45:44,823 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) [2021-10-07 15:45:45,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23366 states to 23366 states and 90434 transitions. [2021-10-07 15:45:45,216 INFO L78 Accepts]: Start accepts. Automaton has 23366 states and 90434 transitions. Word has length 5 [2021-10-07 15:45:45,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:45:45,216 INFO L470 AbstractCegarLoop]: Abstraction has 23366 states and 90434 transitions. [2021-10-07 15:45:45,216 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) [2021-10-07 15:45:45,216 INFO L276 IsEmpty]: Start isEmpty. Operand 23366 states and 90434 transitions. [2021-10-07 15:45:45,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:45:45,217 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:45:45,217 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:45:45,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-07 15:45:45,425 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 [2021-10-07 15:45:45,425 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:45:45,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:45:45,426 INFO L82 PathProgramCache]: Analyzing trace with hash -219103589, now seen corresponding path program 1 times [2021-10-07 15:45:45,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:45:45,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7266828] [2021-10-07 15:45:45,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:45:45,429 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:45:45,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:45:45,430 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) [2021-10-07 15:45:45,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-07 15:45:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:45:45,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:45:45,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:45:45,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:45,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:45:45,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:45,685 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:45:45,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7266828] [2021-10-07 15:45:45,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7266828] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:45:45,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:45:45,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:45:45,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131305683] [2021-10-07 15:45:45,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:45:45,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:45:45,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:45:45,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:45:45,688 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) [2021-10-07 15:45:45,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:45:45,869 INFO L93 Difference]: Finished difference Result 17858 states and 67466 transitions. [2021-10-07 15:45:45,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:45:45,871 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 [2021-10-07 15:45:45,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:45:45,972 INFO L225 Difference]: With dead ends: 17858 [2021-10-07 15:45:45,972 INFO L226 Difference]: Without dead ends: 17858 [2021-10-07 15:45:45,973 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:45:46,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17858 states. [2021-10-07 15:45:46,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17858 to 17858. [2021-10-07 15:45:46,829 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) [2021-10-07 15:45:46,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17858 states to 17858 states and 67466 transitions. [2021-10-07 15:45:46,910 INFO L78 Accepts]: Start accepts. Automaton has 17858 states and 67466 transitions. Word has length 7 [2021-10-07 15:45:46,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:45:46,910 INFO L470 AbstractCegarLoop]: Abstraction has 17858 states and 67466 transitions. [2021-10-07 15:45:46,910 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) [2021-10-07 15:45:46,910 INFO L276 IsEmpty]: Start isEmpty. Operand 17858 states and 67466 transitions. [2021-10-07 15:45:46,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:45:46,911 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:45:46,911 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:45:46,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-07 15:45:47,112 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 [2021-10-07 15:45:47,113 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:45:47,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:45:47,114 INFO L82 PathProgramCache]: Analyzing trace with hash -219103588, now seen corresponding path program 1 times [2021-10-07 15:45:47,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:45:47,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015964073] [2021-10-07 15:45:47,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:45:47,116 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:45:47,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:45:47,117 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) [2021-10-07 15:45:47,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-07 15:45:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:45:47,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:45:47,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:45:47,229 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-07 15:45:47,230 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 [2021-10-07 15:45:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:47,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:45:47,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:47,351 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:45:47,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015964073] [2021-10-07 15:45:47,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015964073] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:45:47,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:45:47,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-07 15:45:47,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453006701] [2021-10-07 15:45:47,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:45:47,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:45:47,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:45:47,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:45:47,356 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) [2021-10-07 15:45:47,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:45:47,511 INFO L93 Difference]: Finished difference Result 12350 states and 44498 transitions. [2021-10-07 15:45:47,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:45:47,512 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 [2021-10-07 15:45:47,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:45:47,571 INFO L225 Difference]: With dead ends: 12350 [2021-10-07 15:45:47,572 INFO L226 Difference]: Without dead ends: 12350 [2021-10-07 15:45:47,573 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.7ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:45:47,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12350 states. [2021-10-07 15:45:48,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12350 to 12350. [2021-10-07 15:45:48,226 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) [2021-10-07 15:45:48,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12350 states to 12350 states and 44498 transitions. [2021-10-07 15:45:48,291 INFO L78 Accepts]: Start accepts. Automaton has 12350 states and 44498 transitions. Word has length 7 [2021-10-07 15:45:48,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:45:48,291 INFO L470 AbstractCegarLoop]: Abstraction has 12350 states and 44498 transitions. [2021-10-07 15:45:48,292 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) [2021-10-07 15:45:48,292 INFO L276 IsEmpty]: Start isEmpty. Operand 12350 states and 44498 transitions. [2021-10-07 15:45:48,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:45:48,354 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:45:48,354 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] [2021-10-07 15:45:48,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-07 15:45:48,567 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 [2021-10-07 15:45:48,568 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)] === [2021-10-07 15:45:48,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:45:48,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1663488652, now seen corresponding path program 1 times [2021-10-07 15:45:48,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:45:48,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241589630] [2021-10-07 15:45:48,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:45:48,570 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:45:48,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:45:48,571 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) [2021-10-07 15:45:48,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-07 15:45:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:45:48,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:45:48,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:45:48,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:48,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:45:48,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:48,924 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:45:48,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241589630] [2021-10-07 15:45:48,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241589630] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:45:48,924 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:45:48,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-07 15:45:48,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702485633] [2021-10-07 15:45:48,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:45:48,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:45:48,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:45:48,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:45:48,927 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) [2021-10-07 15:45:49,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:45:49,092 INFO L93 Difference]: Finished difference Result 12962 states and 46081 transitions. [2021-10-07 15:45:49,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:45:49,093 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 [2021-10-07 15:45:49,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:45:49,161 INFO L225 Difference]: With dead ends: 12962 [2021-10-07 15:45:49,161 INFO L226 Difference]: Without dead ends: 12350 [2021-10-07 15:45:49,162 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.7ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:45:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12350 states. [2021-10-07 15:45:49,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12350 to 12350. [2021-10-07 15:45:49,740 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) [2021-10-07 15:45:49,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12350 states to 12350 states and 44174 transitions. [2021-10-07 15:45:49,782 INFO L78 Accepts]: Start accepts. Automaton has 12350 states and 44174 transitions. Word has length 53 [2021-10-07 15:45:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:45:49,782 INFO L470 AbstractCegarLoop]: Abstraction has 12350 states and 44174 transitions. [2021-10-07 15:45:49,783 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) [2021-10-07 15:45:49,783 INFO L276 IsEmpty]: Start isEmpty. Operand 12350 states and 44174 transitions. [2021-10-07 15:45:49,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:45:49,826 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:45:49,827 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] [2021-10-07 15:45:49,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-07 15:45:50,038 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 [2021-10-07 15:45:50,039 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)] === [2021-10-07 15:45:50,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:45:50,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1229538064, now seen corresponding path program 2 times [2021-10-07 15:45:50,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:45:50,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420079066] [2021-10-07 15:45:50,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:45:50,042 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:45:50,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:45:50,043 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) [2021-10-07 15:45:50,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-07 15:45:50,182 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:45:50,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:45:50,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-07 15:45:50,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:45:50,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:50,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:45:50,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:50,630 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:45:50,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420079066] [2021-10-07 15:45:50,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420079066] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:45:50,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:45:50,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-07 15:45:50,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513179977] [2021-10-07 15:45:50,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 15:45:50,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:45:50,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 15:45:50,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:45:50,633 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) [2021-10-07 15:45:51,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:45:51,169 INFO L93 Difference]: Finished difference Result 14020 states and 49234 transitions. [2021-10-07 15:45:51,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-07 15:45:51,170 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 [2021-10-07 15:45:51,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:45:51,524 INFO L225 Difference]: With dead ends: 14020 [2021-10-07 15:45:51,524 INFO L226 Difference]: Without dead ends: 14020 [2021-10-07 15:45:51,525 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 80.4ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:45:51,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14020 states. [2021-10-07 15:45:51,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14020 to 12614. [2021-10-07 15:45:51,922 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) [2021-10-07 15:45:51,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12614 states to 12614 states and 44500 transitions. [2021-10-07 15:45:51,977 INFO L78 Accepts]: Start accepts. Automaton has 12614 states and 44500 transitions. Word has length 53 [2021-10-07 15:45:51,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:45:51,978 INFO L470 AbstractCegarLoop]: Abstraction has 12614 states and 44500 transitions. [2021-10-07 15:45:51,978 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) [2021-10-07 15:45:51,978 INFO L276 IsEmpty]: Start isEmpty. Operand 12614 states and 44500 transitions. [2021-10-07 15:45:52,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:45:52,009 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:45:52,009 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] [2021-10-07 15:45:52,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-10-07 15:45:52,210 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 [2021-10-07 15:45:52,211 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)] === [2021-10-07 15:45:52,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:45:52,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1059336432, now seen corresponding path program 3 times [2021-10-07 15:45:52,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:45:52,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383906042] [2021-10-07 15:45:52,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:45:52,213 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:45:52,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:45:52,214 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) [2021-10-07 15:45:52,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-07 15:45:52,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:45:52,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:45:52,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-07 15:45:52,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:45:52,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:52,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:45:52,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:52,840 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:45:52,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383906042] [2021-10-07 15:45:52,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383906042] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:45:52,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:45:52,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-07 15:45:52,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983270388] [2021-10-07 15:45:52,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 15:45:52,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:45:52,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 15:45:52,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:45:52,843 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) [2021-10-07 15:45:53,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:45:53,859 INFO L93 Difference]: Finished difference Result 16034 states and 55690 transitions. [2021-10-07 15:45:53,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-07 15:45:53,860 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 [2021-10-07 15:45:53,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:45:53,940 INFO L225 Difference]: With dead ends: 16034 [2021-10-07 15:45:53,940 INFO L226 Difference]: Without dead ends: 16034 [2021-10-07 15:45:53,941 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 139.9ms TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-10-07 15:45:53,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16034 states. [2021-10-07 15:45:54,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16034 to 13910. [2021-10-07 15:45:54,467 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) [2021-10-07 15:45:54,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13910 states to 13910 states and 48835 transitions. [2021-10-07 15:45:54,551 INFO L78 Accepts]: Start accepts. Automaton has 13910 states and 48835 transitions. Word has length 53 [2021-10-07 15:45:54,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:45:54,554 INFO L470 AbstractCegarLoop]: Abstraction has 13910 states and 48835 transitions. [2021-10-07 15:45:54,554 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) [2021-10-07 15:45:54,554 INFO L276 IsEmpty]: Start isEmpty. Operand 13910 states and 48835 transitions. [2021-10-07 15:45:54,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:45:54,609 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:45:54,610 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] [2021-10-07 15:45:54,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-07 15:45:54,823 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 [2021-10-07 15:45:54,824 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)] === [2021-10-07 15:45:54,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:45:54,825 INFO L82 PathProgramCache]: Analyzing trace with hash -669277124, now seen corresponding path program 4 times [2021-10-07 15:45:54,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:45:54,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658668827] [2021-10-07 15:45:54,827 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:45:54,827 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:45:54,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:45:54,828 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) [2021-10-07 15:45:54,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-07 15:45:55,005 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:45:55,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:45:55,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:45:55,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:45:55,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:55,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:45:55,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:55,389 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:45:55,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658668827] [2021-10-07 15:45:55,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658668827] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:45:55,390 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:45:55,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-07 15:45:55,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619751289] [2021-10-07 15:45:55,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:45:55,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:45:55,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:45:55,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:45:55,392 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) [2021-10-07 15:45:55,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:45:55,552 INFO L93 Difference]: Finished difference Result 14590 states and 50601 transitions. [2021-10-07 15:45:55,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:45:55,552 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 [2021-10-07 15:45:55,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:45:55,603 INFO L225 Difference]: With dead ends: 14590 [2021-10-07 15:45:55,603 INFO L226 Difference]: Without dead ends: 13910 [2021-10-07 15:45:55,603 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.5ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:45:55,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13910 states. [2021-10-07 15:45:55,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13910 to 13910. [2021-10-07 15:45:56,015 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) [2021-10-07 15:45:56,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13910 states to 13910 states and 48443 transitions. [2021-10-07 15:45:56,080 INFO L78 Accepts]: Start accepts. Automaton has 13910 states and 48443 transitions. Word has length 53 [2021-10-07 15:45:56,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:45:56,080 INFO L470 AbstractCegarLoop]: Abstraction has 13910 states and 48443 transitions. [2021-10-07 15:45:56,080 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) [2021-10-07 15:45:56,080 INFO L276 IsEmpty]: Start isEmpty. Operand 13910 states and 48443 transitions. [2021-10-07 15:45:56,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:45:56,125 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:45:56,125 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] [2021-10-07 15:45:56,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-07 15:45:56,337 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 [2021-10-07 15:45:56,338 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)] === [2021-10-07 15:45:56,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:45:56,339 INFO L82 PathProgramCache]: Analyzing trace with hash -437766866, now seen corresponding path program 5 times [2021-10-07 15:45:56,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:45:56,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544045676] [2021-10-07 15:45:56,341 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:45:56,341 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:45:56,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:45:56,346 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) [2021-10-07 15:45:56,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-07 15:45:56,523 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:45:56,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:45:56,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 15:45:56,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:45:57,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:57,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:45:58,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:45:58,103 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:45:58,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544045676] [2021-10-07 15:45:58,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544045676] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:45:58,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:45:58,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:45:58,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310267528] [2021-10-07 15:45:58,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:45:58,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:45:58,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:45:58,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:45:58,106 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) [2021-10-07 15:45:59,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:45:59,894 INFO L93 Difference]: Finished difference Result 20838 states and 72371 transitions. [2021-10-07 15:45:59,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-07 15:45:59,895 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 [2021-10-07 15:45:59,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:45:59,986 INFO L225 Difference]: With dead ends: 20838 [2021-10-07 15:45:59,987 INFO L226 Difference]: Without dead ends: 20476 [2021-10-07 15:45:59,987 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 564.9ms TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:46:00,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20476 states. [2021-10-07 15:46:00,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20476 to 15110. [2021-10-07 15:46:00,615 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) [2021-10-07 15:46:00,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15110 states to 15110 states and 52351 transitions. [2021-10-07 15:46:00,662 INFO L78 Accepts]: Start accepts. Automaton has 15110 states and 52351 transitions. Word has length 53 [2021-10-07 15:46:00,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:00,662 INFO L470 AbstractCegarLoop]: Abstraction has 15110 states and 52351 transitions. [2021-10-07 15:46:00,663 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) [2021-10-07 15:46:00,663 INFO L276 IsEmpty]: Start isEmpty. Operand 15110 states and 52351 transitions. [2021-10-07 15:46:00,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:00,696 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:00,696 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] [2021-10-07 15:46:00,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:00,901 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 [2021-10-07 15:46:00,902 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)] === [2021-10-07 15:46:00,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:00,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1943986678, now seen corresponding path program 6 times [2021-10-07 15:46:00,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:00,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024701762] [2021-10-07 15:46:00,905 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:46:00,906 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:00,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:00,907 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) [2021-10-07 15:46:00,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-07 15:46:01,103 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:46:01,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:46:01,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-07 15:46:01,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:01,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:01,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:01,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:01,504 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:01,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024701762] [2021-10-07 15:46:01,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024701762] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:01,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:01,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-07 15:46:01,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004989074] [2021-10-07 15:46:01,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 15:46:01,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:01,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 15:46:01,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:46:01,506 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) [2021-10-07 15:46:01,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:01,805 INFO L93 Difference]: Finished difference Result 16689 states and 56475 transitions. [2021-10-07 15:46:01,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-07 15:46:01,806 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 [2021-10-07 15:46:01,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:02,006 INFO L225 Difference]: With dead ends: 16689 [2021-10-07 15:46:02,006 INFO L226 Difference]: Without dead ends: 16304 [2021-10-07 15:46:02,007 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 109.7ms TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-07 15:46:02,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16304 states. [2021-10-07 15:46:02,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16304 to 15114. [2021-10-07 15:46:02,293 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) [2021-10-07 15:46:02,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15114 states to 15114 states and 52304 transitions. [2021-10-07 15:46:02,340 INFO L78 Accepts]: Start accepts. Automaton has 15114 states and 52304 transitions. Word has length 53 [2021-10-07 15:46:02,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:02,340 INFO L470 AbstractCegarLoop]: Abstraction has 15114 states and 52304 transitions. [2021-10-07 15:46:02,341 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) [2021-10-07 15:46:02,341 INFO L276 IsEmpty]: Start isEmpty. Operand 15114 states and 52304 transitions. [2021-10-07 15:46:02,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:02,375 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:02,375 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] [2021-10-07 15:46:02,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:02,575 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 [2021-10-07 15:46:02,576 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)] === [2021-10-07 15:46:02,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:02,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1270431918, now seen corresponding path program 7 times [2021-10-07 15:46:02,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:02,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428610574] [2021-10-07 15:46:02,578 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:46:02,578 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:02,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:02,580 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) [2021-10-07 15:46:02,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-07 15:46:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:46:02,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:46:02,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:02,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:02,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:03,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:03,027 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:03,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428610574] [2021-10-07 15:46:03,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428610574] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:03,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:03,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-07 15:46:03,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353080328] [2021-10-07 15:46:03,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:46:03,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:03,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:46:03,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:46:03,029 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) [2021-10-07 15:46:03,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:03,376 INFO L93 Difference]: Finished difference Result 15962 states and 54455 transitions. [2021-10-07 15:46:03,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:46:03,377 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 [2021-10-07 15:46:03,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:03,426 INFO L225 Difference]: With dead ends: 15962 [2021-10-07 15:46:03,426 INFO L226 Difference]: Without dead ends: 15082 [2021-10-07 15:46:03,426 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.4ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:46:03,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15082 states. [2021-10-07 15:46:03,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15082 to 15082. [2021-10-07 15:46:03,720 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) [2021-10-07 15:46:03,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15082 states to 15082 states and 51904 transitions. [2021-10-07 15:46:03,767 INFO L78 Accepts]: Start accepts. Automaton has 15082 states and 51904 transitions. Word has length 53 [2021-10-07 15:46:03,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:03,767 INFO L470 AbstractCegarLoop]: Abstraction has 15082 states and 51904 transitions. [2021-10-07 15:46:03,768 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) [2021-10-07 15:46:03,768 INFO L276 IsEmpty]: Start isEmpty. Operand 15082 states and 51904 transitions. [2021-10-07 15:46:03,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:03,805 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:03,805 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] [2021-10-07 15:46:03,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-10-07 15:46:04,017 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 [2021-10-07 15:46:04,018 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)] === [2021-10-07 15:46:04,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:04,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1418880206, now seen corresponding path program 8 times [2021-10-07 15:46:04,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:04,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400003802] [2021-10-07 15:46:04,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:46:04,021 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:04,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:04,023 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) [2021-10-07 15:46:04,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-07 15:46:04,249 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:46:04,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:46:04,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 15:46:04,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:04,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:05,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:05,678 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:05,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400003802] [2021-10-07 15:46:05,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400003802] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:05,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:05,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-10-07 15:46:05,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035262272] [2021-10-07 15:46:05,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-07 15:46:05,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:05,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-07 15:46:05,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-10-07 15:46:05,681 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) [2021-10-07 15:46:06,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:06,801 INFO L93 Difference]: Finished difference Result 18440 states and 62441 transitions. [2021-10-07 15:46:06,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-07 15:46:06,802 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 [2021-10-07 15:46:06,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:06,875 INFO L225 Difference]: With dead ends: 18440 [2021-10-07 15:46:06,875 INFO L226 Difference]: Without dead ends: 18040 [2021-10-07 15:46:06,876 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 466.6ms TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2021-10-07 15:46:06,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18040 states. [2021-10-07 15:46:07,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18040 to 15200. [2021-10-07 15:46:07,350 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) [2021-10-07 15:46:07,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15200 states to 15200 states and 52259 transitions. [2021-10-07 15:46:07,396 INFO L78 Accepts]: Start accepts. Automaton has 15200 states and 52259 transitions. Word has length 53 [2021-10-07 15:46:07,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:07,396 INFO L470 AbstractCegarLoop]: Abstraction has 15200 states and 52259 transitions. [2021-10-07 15:46:07,396 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) [2021-10-07 15:46:07,397 INFO L276 IsEmpty]: Start isEmpty. Operand 15200 states and 52259 transitions. [2021-10-07 15:46:07,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:07,433 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:07,433 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] [2021-10-07 15:46:07,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:07,647 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 [2021-10-07 15:46:07,648 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)] === [2021-10-07 15:46:07,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:07,649 INFO L82 PathProgramCache]: Analyzing trace with hash 2023756884, now seen corresponding path program 9 times [2021-10-07 15:46:07,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:07,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53685977] [2021-10-07 15:46:07,650 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:46:07,650 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:07,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:07,652 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) [2021-10-07 15:46:07,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-07 15:46:07,915 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:46:07,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:46:07,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 15:46:07,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:08,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:08,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:09,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:09,398 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:09,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53685977] [2021-10-07 15:46:09,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53685977] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:09,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:09,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-07 15:46:09,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947260014] [2021-10-07 15:46:09,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-07 15:46:09,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:09,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-07 15:46:09,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-07 15:46:09,401 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) [2021-10-07 15:46:11,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:11,313 INFO L93 Difference]: Finished difference Result 19250 states and 64932 transitions. [2021-10-07 15:46:11,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-07 15:46:11,314 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 [2021-10-07 15:46:11,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:11,366 INFO L225 Difference]: With dead ends: 19250 [2021-10-07 15:46:11,366 INFO L226 Difference]: Without dead ends: 18848 [2021-10-07 15:46:11,367 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 787.0ms TimeCoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2021-10-07 15:46:11,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18848 states. [2021-10-07 15:46:11,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18848 to 15314. [2021-10-07 15:46:11,687 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) [2021-10-07 15:46:11,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15314 states to 15314 states and 52626 transitions. [2021-10-07 15:46:11,734 INFO L78 Accepts]: Start accepts. Automaton has 15314 states and 52626 transitions. Word has length 53 [2021-10-07 15:46:11,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:11,735 INFO L470 AbstractCegarLoop]: Abstraction has 15314 states and 52626 transitions. [2021-10-07 15:46:11,735 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) [2021-10-07 15:46:11,735 INFO L276 IsEmpty]: Start isEmpty. Operand 15314 states and 52626 transitions. [2021-10-07 15:46:11,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:11,878 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:11,878 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] [2021-10-07 15:46:11,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:12,079 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 [2021-10-07 15:46:12,079 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)] === [2021-10-07 15:46:12,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:12,080 INFO L82 PathProgramCache]: Analyzing trace with hash -391485038, now seen corresponding path program 10 times [2021-10-07 15:46:12,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:12,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995593044] [2021-10-07 15:46:12,081 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:46:12,082 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:12,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:12,082 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) [2021-10-07 15:46:12,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-07 15:46:12,378 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:46:12,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:46:12,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 15:46:12,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:12,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:12,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:13,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:13,652 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:13,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995593044] [2021-10-07 15:46:13,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995593044] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:13,653 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:13,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:46:13,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736198920] [2021-10-07 15:46:13,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:46:13,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:13,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:46:13,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:46:13,656 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) [2021-10-07 15:46:15,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:15,264 INFO L93 Difference]: Finished difference Result 20050 states and 67796 transitions. [2021-10-07 15:46:15,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-07 15:46:15,266 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 [2021-10-07 15:46:15,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:15,333 INFO L225 Difference]: With dead ends: 20050 [2021-10-07 15:46:15,333 INFO L226 Difference]: Without dead ends: 19646 [2021-10-07 15:46:15,334 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 606.6ms TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2021-10-07 15:46:15,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19646 states. [2021-10-07 15:46:15,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19646 to 15282. [2021-10-07 15:46:15,797 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) [2021-10-07 15:46:15,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15282 states to 15282 states and 52518 transitions. [2021-10-07 15:46:15,844 INFO L78 Accepts]: Start accepts. Automaton has 15282 states and 52518 transitions. Word has length 53 [2021-10-07 15:46:15,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:15,844 INFO L470 AbstractCegarLoop]: Abstraction has 15282 states and 52518 transitions. [2021-10-07 15:46:15,844 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) [2021-10-07 15:46:15,844 INFO L276 IsEmpty]: Start isEmpty. Operand 15282 states and 52518 transitions. [2021-10-07 15:46:15,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:15,874 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:15,874 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] [2021-10-07 15:46:15,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:16,075 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 [2021-10-07 15:46:16,075 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)] === [2021-10-07 15:46:16,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:16,076 INFO L82 PathProgramCache]: Analyzing trace with hash -484582578, now seen corresponding path program 11 times [2021-10-07 15:46:16,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:16,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888461172] [2021-10-07 15:46:16,078 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:46:16,078 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:16,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:16,080 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) [2021-10-07 15:46:16,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-07 15:46:16,406 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:46:16,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:46:16,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-07 15:46:16,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:16,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:16,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:16,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:16,967 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:16,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888461172] [2021-10-07 15:46:16,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888461172] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:16,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:16,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-07 15:46:16,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275115586] [2021-10-07 15:46:16,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-07 15:46:16,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:16,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-07 15:46:16,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-07 15:46:16,970 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) [2021-10-07 15:46:18,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:18,281 INFO L93 Difference]: Finished difference Result 19544 states and 66568 transitions. [2021-10-07 15:46:18,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-07 15:46:18,283 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 [2021-10-07 15:46:18,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:18,337 INFO L225 Difference]: With dead ends: 19544 [2021-10-07 15:46:18,337 INFO L226 Difference]: Without dead ends: 19544 [2021-10-07 15:46:18,338 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 308.7ms TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2021-10-07 15:46:18,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19544 states. [2021-10-07 15:46:18,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19544 to 16238. [2021-10-07 15:46:18,677 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) [2021-10-07 15:46:18,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16238 states to 16238 states and 55320 transitions. [2021-10-07 15:46:18,976 INFO L78 Accepts]: Start accepts. Automaton has 16238 states and 55320 transitions. Word has length 53 [2021-10-07 15:46:18,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:18,976 INFO L470 AbstractCegarLoop]: Abstraction has 16238 states and 55320 transitions. [2021-10-07 15:46:18,976 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) [2021-10-07 15:46:18,976 INFO L276 IsEmpty]: Start isEmpty. Operand 16238 states and 55320 transitions. [2021-10-07 15:46:19,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:19,008 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:19,008 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] [2021-10-07 15:46:19,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:19,208 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 [2021-10-07 15:46:19,209 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)] === [2021-10-07 15:46:19,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:19,210 INFO L82 PathProgramCache]: Analyzing trace with hash 740466980, now seen corresponding path program 12 times [2021-10-07 15:46:19,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:19,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079375442] [2021-10-07 15:46:19,211 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:46:19,211 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:19,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:19,213 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) [2021-10-07 15:46:19,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-07 15:46:19,562 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:46:19,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:46:19,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 15:46:19,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:19,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:19,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:20,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:20,940 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:20,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079375442] [2021-10-07 15:46:20,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079375442] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:20,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:20,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-07 15:46:20,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158335890] [2021-10-07 15:46:20,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-07 15:46:20,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:20,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-07 15:46:20,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-07 15:46:20,943 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) [2021-10-07 15:46:23,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:23,763 INFO L93 Difference]: Finished difference Result 21280 states and 71463 transitions. [2021-10-07 15:46:23,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-07 15:46:23,763 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 [2021-10-07 15:46:23,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:23,820 INFO L225 Difference]: With dead ends: 21280 [2021-10-07 15:46:23,820 INFO L226 Difference]: Without dead ends: 20866 [2021-10-07 15:46:23,821 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1083.4ms TimeCoverageRelationStatistics Valid=143, Invalid=849, Unknown=0, NotChecked=0, Total=992 [2021-10-07 15:46:23,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20866 states. [2021-10-07 15:46:24,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20866 to 16512. [2021-10-07 15:46:24,186 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) [2021-10-07 15:46:24,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16512 states to 16512 states and 56187 transitions. [2021-10-07 15:46:24,258 INFO L78 Accepts]: Start accepts. Automaton has 16512 states and 56187 transitions. Word has length 53 [2021-10-07 15:46:24,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:24,258 INFO L470 AbstractCegarLoop]: Abstraction has 16512 states and 56187 transitions. [2021-10-07 15:46:24,259 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) [2021-10-07 15:46:24,259 INFO L276 IsEmpty]: Start isEmpty. Operand 16512 states and 56187 transitions. [2021-10-07 15:46:24,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:24,302 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:24,302 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] [2021-10-07 15:46:24,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:24,516 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 [2021-10-07 15:46:24,516 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)] === [2021-10-07 15:46:24,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:24,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1674774942, now seen corresponding path program 13 times [2021-10-07 15:46:24,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:24,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444868862] [2021-10-07 15:46:24,519 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:46:24,519 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:24,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:24,521 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) [2021-10-07 15:46:24,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-07 15:46:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:46:24,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 15:46:24,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:25,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:25,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:26,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:26,290 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:26,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444868862] [2021-10-07 15:46:26,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444868862] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:26,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:26,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:46:26,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787221714] [2021-10-07 15:46:26,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:46:26,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:26,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:46:26,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:46:26,292 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) [2021-10-07 15:46:29,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:29,653 INFO L93 Difference]: Finished difference Result 28496 states and 94985 transitions. [2021-10-07 15:46:29,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-07 15:46:29,654 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 [2021-10-07 15:46:29,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:29,901 INFO L225 Difference]: With dead ends: 28496 [2021-10-07 15:46:29,901 INFO L226 Difference]: Without dead ends: 27624 [2021-10-07 15:46:29,903 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1348.5ms TimeCoverageRelationStatistics Valid=145, Invalid=847, Unknown=0, NotChecked=0, Total=992 [2021-10-07 15:46:29,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27624 states. [2021-10-07 15:46:30,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27624 to 17358. [2021-10-07 15:46:30,299 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) [2021-10-07 15:46:30,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17358 states to 17358 states and 58330 transitions. [2021-10-07 15:46:30,353 INFO L78 Accepts]: Start accepts. Automaton has 17358 states and 58330 transitions. Word has length 53 [2021-10-07 15:46:30,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:30,353 INFO L470 AbstractCegarLoop]: Abstraction has 17358 states and 58330 transitions. [2021-10-07 15:46:30,353 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) [2021-10-07 15:46:30,353 INFO L276 IsEmpty]: Start isEmpty. Operand 17358 states and 58330 transitions. [2021-10-07 15:46:30,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:30,386 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:30,386 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] [2021-10-07 15:46:30,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:30,600 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 [2021-10-07 15:46:30,600 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)] === [2021-10-07 15:46:30,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:30,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1883415408, now seen corresponding path program 14 times [2021-10-07 15:46:30,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:30,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683928899] [2021-10-07 15:46:30,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:46:30,603 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:30,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:30,605 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) [2021-10-07 15:46:30,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-07 15:46:31,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:46:31,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:46:31,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-07 15:46:31,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:31,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:31,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:31,786 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:31,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683928899] [2021-10-07 15:46:31,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683928899] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:31,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:31,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-07 15:46:31,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160081825] [2021-10-07 15:46:31,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-07 15:46:31,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:31,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-07 15:46:31,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-10-07 15:46:31,788 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) [2021-10-07 15:46:33,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:33,099 INFO L93 Difference]: Finished difference Result 20094 states and 67348 transitions. [2021-10-07 15:46:33,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-07 15:46:33,099 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 [2021-10-07 15:46:33,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:33,154 INFO L225 Difference]: With dead ends: 20094 [2021-10-07 15:46:33,154 INFO L226 Difference]: Without dead ends: 20094 [2021-10-07 15:46:33,154 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 375.7ms TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:46:33,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20094 states. [2021-10-07 15:46:33,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20094 to 17924. [2021-10-07 15:46:33,650 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) [2021-10-07 15:46:33,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17924 states to 17924 states and 60259 transitions. [2021-10-07 15:46:33,704 INFO L78 Accepts]: Start accepts. Automaton has 17924 states and 60259 transitions. Word has length 53 [2021-10-07 15:46:33,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:33,704 INFO L470 AbstractCegarLoop]: Abstraction has 17924 states and 60259 transitions. [2021-10-07 15:46:33,705 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) [2021-10-07 15:46:33,705 INFO L276 IsEmpty]: Start isEmpty. Operand 17924 states and 60259 transitions. [2021-10-07 15:46:33,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:33,740 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:33,740 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] [2021-10-07 15:46:33,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:33,954 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 [2021-10-07 15:46:33,954 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)] === [2021-10-07 15:46:33,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:33,955 INFO L82 PathProgramCache]: Analyzing trace with hash -885685516, now seen corresponding path program 15 times [2021-10-07 15:46:33,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:33,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366636292] [2021-10-07 15:46:33,956 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:46:33,956 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:33,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:33,957 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) [2021-10-07 15:46:33,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-07 15:46:34,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:46:34,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:46:34,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-07 15:46:34,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:34,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:34,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:34,735 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:34,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366636292] [2021-10-07 15:46:34,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366636292] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:34,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:34,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-07 15:46:34,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062091366] [2021-10-07 15:46:34,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 15:46:34,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:34,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 15:46:34,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:46:34,737 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) [2021-10-07 15:46:35,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:35,042 INFO L93 Difference]: Finished difference Result 19679 states and 64879 transitions. [2021-10-07 15:46:35,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-07 15:46:35,042 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 [2021-10-07 15:46:35,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:35,124 INFO L225 Difference]: With dead ends: 19679 [2021-10-07 15:46:35,124 INFO L226 Difference]: Without dead ends: 19466 [2021-10-07 15:46:35,125 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 108.0ms TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-07 15:46:35,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19466 states. [2021-10-07 15:46:35,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19466 to 18012. [2021-10-07 15:46:35,943 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) [2021-10-07 15:46:36,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18012 states to 18012 states and 60447 transitions. [2021-10-07 15:46:36,017 INFO L78 Accepts]: Start accepts. Automaton has 18012 states and 60447 transitions. Word has length 53 [2021-10-07 15:46:36,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:36,017 INFO L470 AbstractCegarLoop]: Abstraction has 18012 states and 60447 transitions. [2021-10-07 15:46:36,017 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) [2021-10-07 15:46:36,017 INFO L276 IsEmpty]: Start isEmpty. Operand 18012 states and 60447 transitions. [2021-10-07 15:46:36,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:36,052 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:36,052 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] [2021-10-07 15:46:36,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:36,253 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 [2021-10-07 15:46:36,253 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)] === [2021-10-07 15:46:36,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:36,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1214575236, now seen corresponding path program 16 times [2021-10-07 15:46:36,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:36,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106674276] [2021-10-07 15:46:36,256 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:46:36,256 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:36,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:36,258 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) [2021-10-07 15:46:36,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-07 15:46:36,703 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:46:36,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:46:36,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 15:46:36,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:37,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:37,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:38,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:38,176 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:38,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106674276] [2021-10-07 15:46:38,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106674276] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:38,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:38,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:46:38,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707792410] [2021-10-07 15:46:38,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:46:38,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:38,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:46:38,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:46:38,179 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) [2021-10-07 15:46:39,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:39,789 INFO L93 Difference]: Finished difference Result 23460 states and 77959 transitions. [2021-10-07 15:46:39,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-07 15:46:39,790 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 [2021-10-07 15:46:39,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:39,860 INFO L225 Difference]: With dead ends: 23460 [2021-10-07 15:46:39,860 INFO L226 Difference]: Without dead ends: 23038 [2021-10-07 15:46:39,860 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 621.8ms TimeCoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2021-10-07 15:46:39,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23038 states. [2021-10-07 15:46:40,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23038 to 18024. [2021-10-07 15:46:40,387 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) [2021-10-07 15:46:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18024 states to 18024 states and 60485 transitions. [2021-10-07 15:46:40,441 INFO L78 Accepts]: Start accepts. Automaton has 18024 states and 60485 transitions. Word has length 53 [2021-10-07 15:46:40,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:40,442 INFO L470 AbstractCegarLoop]: Abstraction has 18024 states and 60485 transitions. [2021-10-07 15:46:40,442 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) [2021-10-07 15:46:40,442 INFO L276 IsEmpty]: Start isEmpty. Operand 18024 states and 60485 transitions. [2021-10-07 15:46:40,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:40,477 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:40,477 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] [2021-10-07 15:46:40,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:40,678 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 [2021-10-07 15:46:40,678 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)] === [2021-10-07 15:46:40,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:40,679 INFO L82 PathProgramCache]: Analyzing trace with hash -220837796, now seen corresponding path program 17 times [2021-10-07 15:46:40,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:40,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091039554] [2021-10-07 15:46:40,680 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:46:40,681 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:40,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:40,682 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) [2021-10-07 15:46:40,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-07 15:46:41,148 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:46:41,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:46:41,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 15:46:41,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:41,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:41,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:42,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:42,727 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:42,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091039554] [2021-10-07 15:46:42,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091039554] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:42,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:42,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-07 15:46:42,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795607476] [2021-10-07 15:46:42,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-07 15:46:42,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:42,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-07 15:46:42,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-10-07 15:46:42,730 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) [2021-10-07 15:46:46,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:46,123 INFO L93 Difference]: Finished difference Result 24146 states and 79574 transitions. [2021-10-07 15:46:46,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-07 15:46:46,124 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 [2021-10-07 15:46:46,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:46,190 INFO L225 Difference]: With dead ends: 24146 [2021-10-07 15:46:46,190 INFO L226 Difference]: Without dead ends: 23724 [2021-10-07 15:46:46,191 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1461.0ms TimeCoverageRelationStatistics Valid=153, Invalid=969, Unknown=0, NotChecked=0, Total=1122 [2021-10-07 15:46:46,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23724 states. [2021-10-07 15:46:46,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23724 to 17712. [2021-10-07 15:46:46,711 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) [2021-10-07 15:46:46,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17712 states to 17712 states and 59335 transitions. [2021-10-07 15:46:46,762 INFO L78 Accepts]: Start accepts. Automaton has 17712 states and 59335 transitions. Word has length 53 [2021-10-07 15:46:46,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:46,762 INFO L470 AbstractCegarLoop]: Abstraction has 17712 states and 59335 transitions. [2021-10-07 15:46:46,762 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) [2021-10-07 15:46:46,762 INFO L276 IsEmpty]: Start isEmpty. Operand 17712 states and 59335 transitions. [2021-10-07 15:46:46,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:46,795 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:46,795 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] [2021-10-07 15:46:46,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:46,996 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 [2021-10-07 15:46:46,996 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)] === [2021-10-07 15:46:46,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:46,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1873672664, now seen corresponding path program 18 times [2021-10-07 15:46:46,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:46,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145314686] [2021-10-07 15:46:46,998 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:46:46,999 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:46,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:47,000 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) [2021-10-07 15:46:47,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-07 15:46:47,475 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:46:47,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:46:47,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-07 15:46:47,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:47,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:47,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:47,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:47,950 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:47,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145314686] [2021-10-07 15:46:47,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145314686] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:47,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:47,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-07 15:46:47,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244595591] [2021-10-07 15:46:47,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-07 15:46:47,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:47,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-07 15:46:47,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-07 15:46:47,953 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) [2021-10-07 15:46:49,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:49,036 INFO L93 Difference]: Finished difference Result 21456 states and 70334 transitions. [2021-10-07 15:46:49,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-07 15:46:49,036 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 [2021-10-07 15:46:49,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:49,093 INFO L225 Difference]: With dead ends: 21456 [2021-10-07 15:46:49,093 INFO L226 Difference]: Without dead ends: 21432 [2021-10-07 15:46:49,093 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 216.8ms TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:46:49,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21432 states. [2021-10-07 15:46:49,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21432 to 16676. [2021-10-07 15:46:49,443 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) [2021-10-07 15:46:49,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16676 states to 16676 states and 55119 transitions. [2021-10-07 15:46:49,492 INFO L78 Accepts]: Start accepts. Automaton has 16676 states and 55119 transitions. Word has length 53 [2021-10-07 15:46:49,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:49,492 INFO L470 AbstractCegarLoop]: Abstraction has 16676 states and 55119 transitions. [2021-10-07 15:46:49,493 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) [2021-10-07 15:46:49,493 INFO L276 IsEmpty]: Start isEmpty. Operand 16676 states and 55119 transitions. [2021-10-07 15:46:49,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:49,653 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:49,653 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] [2021-10-07 15:46:49,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:49,853 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 [2021-10-07 15:46:49,854 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)] === [2021-10-07 15:46:49,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:49,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1753173314, now seen corresponding path program 19 times [2021-10-07 15:46:49,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:49,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461094458] [2021-10-07 15:46:49,856 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:46:49,857 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:49,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:49,858 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) [2021-10-07 15:46:49,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-07 15:46:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:46:50,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:46:50,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:50,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:50,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:50,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:50,588 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:50,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461094458] [2021-10-07 15:46:50,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461094458] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:50,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:50,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-07 15:46:50,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105012804] [2021-10-07 15:46:50,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:46:50,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:50,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:46:50,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:46:50,591 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) [2021-10-07 15:46:50,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:50,698 INFO L93 Difference]: Finished difference Result 16566 states and 54255 transitions. [2021-10-07 15:46:50,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:46:50,699 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 [2021-10-07 15:46:50,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:50,741 INFO L225 Difference]: With dead ends: 16566 [2021-10-07 15:46:50,742 INFO L226 Difference]: Without dead ends: 16566 [2021-10-07 15:46:50,742 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 [2021-10-07 15:46:50,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16566 states. [2021-10-07 15:46:51,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16566 to 16566. [2021-10-07 15:46:51,237 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) [2021-10-07 15:46:51,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16566 states to 16566 states and 54255 transitions. [2021-10-07 15:46:51,284 INFO L78 Accepts]: Start accepts. Automaton has 16566 states and 54255 transitions. Word has length 53 [2021-10-07 15:46:51,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:51,284 INFO L470 AbstractCegarLoop]: Abstraction has 16566 states and 54255 transitions. [2021-10-07 15:46:51,284 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) [2021-10-07 15:46:51,285 INFO L276 IsEmpty]: Start isEmpty. Operand 16566 states and 54255 transitions. [2021-10-07 15:46:51,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:51,315 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:51,315 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] [2021-10-07 15:46:51,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:51,530 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 [2021-10-07 15:46:51,531 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)] === [2021-10-07 15:46:51,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:51,531 INFO L82 PathProgramCache]: Analyzing trace with hash 556166018, now seen corresponding path program 20 times [2021-10-07 15:46:51,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:51,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671875109] [2021-10-07 15:46:51,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:46:51,533 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:51,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:51,535 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) [2021-10-07 15:46:51,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-07 15:46:52,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:46:52,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:46:52,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-07 15:46:52,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:52,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:52,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:53,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:53,068 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:53,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671875109] [2021-10-07 15:46:53,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671875109] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:53,068 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:53,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-10-07 15:46:53,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203079808] [2021-10-07 15:46:53,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-07 15:46:53,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:53,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-07 15:46:53,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-10-07 15:46:53,070 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) [2021-10-07 15:46:56,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:56,444 INFO L93 Difference]: Finished difference Result 25000 states and 79523 transitions. [2021-10-07 15:46:56,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-07 15:46:56,445 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 [2021-10-07 15:46:56,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:56,510 INFO L225 Difference]: With dead ends: 25000 [2021-10-07 15:46:56,510 INFO L226 Difference]: Without dead ends: 24152 [2021-10-07 15:46:56,511 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1310.9ms TimeCoverageRelationStatistics Valid=138, Invalid=732, Unknown=0, NotChecked=0, Total=870 [2021-10-07 15:46:56,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24152 states. [2021-10-07 15:46:56,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24152 to 17720. [2021-10-07 15:46:56,881 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) [2021-10-07 15:46:56,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17720 states to 17720 states and 57122 transitions. [2021-10-07 15:46:56,933 INFO L78 Accepts]: Start accepts. Automaton has 17720 states and 57122 transitions. Word has length 53 [2021-10-07 15:46:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:56,933 INFO L470 AbstractCegarLoop]: Abstraction has 17720 states and 57122 transitions. [2021-10-07 15:46:56,933 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) [2021-10-07 15:46:56,933 INFO L276 IsEmpty]: Start isEmpty. Operand 17720 states and 57122 transitions. [2021-10-07 15:46:57,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:57,087 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:57,087 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] [2021-10-07 15:46:57,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:57,288 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 [2021-10-07 15:46:57,288 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)] === [2021-10-07 15:46:57,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:57,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1748302960, now seen corresponding path program 21 times [2021-10-07 15:46:57,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:57,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854697337] [2021-10-07 15:46:57,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:46:57,291 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:57,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:57,292 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) [2021-10-07 15:46:57,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-07 15:46:57,901 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:46:57,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:46:57,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-07 15:46:57,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:46:58,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:58,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:46:58,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:46:58,268 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:46:58,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854697337] [2021-10-07 15:46:58,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854697337] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:46:58,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:46:58,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-07 15:46:58,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240907512] [2021-10-07 15:46:58,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 15:46:58,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:46:58,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 15:46:58,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:46:58,271 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) [2021-10-07 15:46:58,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:46:58,603 INFO L93 Difference]: Finished difference Result 19399 states and 61468 transitions. [2021-10-07 15:46:58,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-07 15:46:58,604 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 [2021-10-07 15:46:58,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:46:58,653 INFO L225 Difference]: With dead ends: 19399 [2021-10-07 15:46:58,653 INFO L226 Difference]: Without dead ends: 19010 [2021-10-07 15:46:58,654 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 105.0ms TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-07 15:46:58,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19010 states. [2021-10-07 15:46:59,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19010 to 17872. [2021-10-07 15:46:59,114 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) [2021-10-07 15:46:59,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17872 states to 17872 states and 57439 transitions. [2021-10-07 15:46:59,166 INFO L78 Accepts]: Start accepts. Automaton has 17872 states and 57439 transitions. Word has length 53 [2021-10-07 15:46:59,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:46:59,166 INFO L470 AbstractCegarLoop]: Abstraction has 17872 states and 57439 transitions. [2021-10-07 15:46:59,166 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) [2021-10-07 15:46:59,167 INFO L276 IsEmpty]: Start isEmpty. Operand 17872 states and 57439 transitions. [2021-10-07 15:46:59,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:46:59,199 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:46:59,199 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] [2021-10-07 15:46:59,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-07 15:46:59,400 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 [2021-10-07 15:46:59,400 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)] === [2021-10-07 15:46:59,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:46:59,401 INFO L82 PathProgramCache]: Analyzing trace with hash -264250466, now seen corresponding path program 22 times [2021-10-07 15:46:59,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:46:59,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511849519] [2021-10-07 15:46:59,402 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:46:59,403 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:46:59,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:46:59,404 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) [2021-10-07 15:46:59,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-07 15:46:59,994 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:46:59,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:47:00,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-07 15:47:00,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:00,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:00,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:01,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:01,142 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:01,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511849519] [2021-10-07 15:47:01,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511849519] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:01,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:01,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-07 15:47:01,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978050991] [2021-10-07 15:47:01,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-07 15:47:01,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:01,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-07 15:47:01,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-07 15:47:01,145 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) [2021-10-07 15:47:02,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:02,574 INFO L93 Difference]: Finished difference Result 23676 states and 75207 transitions. [2021-10-07 15:47:02,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-07 15:47:02,575 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 [2021-10-07 15:47:02,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:02,634 INFO L225 Difference]: With dead ends: 23676 [2021-10-07 15:47:02,635 INFO L226 Difference]: Without dead ends: 23020 [2021-10-07 15:47:02,635 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 479.7ms TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:47:02,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23020 states. [2021-10-07 15:47:03,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23020 to 19920. [2021-10-07 15:47:03,241 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) [2021-10-07 15:47:03,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19920 states to 19920 states and 63563 transitions. [2021-10-07 15:47:03,310 INFO L78 Accepts]: Start accepts. Automaton has 19920 states and 63563 transitions. Word has length 53 [2021-10-07 15:47:03,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:03,310 INFO L470 AbstractCegarLoop]: Abstraction has 19920 states and 63563 transitions. [2021-10-07 15:47:03,310 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) [2021-10-07 15:47:03,310 INFO L276 IsEmpty]: Start isEmpty. Operand 19920 states and 63563 transitions. [2021-10-07 15:47:03,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:47:03,353 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:03,353 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] [2021-10-07 15:47:03,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2021-10-07 15:47:03,553 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 [2021-10-07 15:47:03,554 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)] === [2021-10-07 15:47:03,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:03,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1551490818, now seen corresponding path program 23 times [2021-10-07 15:47:03,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:03,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704856353] [2021-10-07 15:47:03,556 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:47:03,556 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:03,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:03,558 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) [2021-10-07 15:47:03,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-07 15:47:04,190 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:47:04,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:47:04,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-07 15:47:04,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:04,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:04,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:05,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:05,335 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:05,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704856353] [2021-10-07 15:47:05,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1704856353] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:05,335 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:05,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-07 15:47:05,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837140967] [2021-10-07 15:47:05,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-07 15:47:05,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:05,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-07 15:47:05,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-07 15:47:05,337 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) [2021-10-07 15:47:06,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:06,670 INFO L93 Difference]: Finished difference Result 27176 states and 85967 transitions. [2021-10-07 15:47:06,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-07 15:47:06,671 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 [2021-10-07 15:47:06,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:06,742 INFO L225 Difference]: With dead ends: 27176 [2021-10-07 15:47:06,742 INFO L226 Difference]: Without dead ends: 26522 [2021-10-07 15:47:06,743 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 371.1ms TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2021-10-07 15:47:06,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26522 states. [2021-10-07 15:47:07,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26522 to 20004. [2021-10-07 15:47:07,151 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) [2021-10-07 15:47:07,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20004 states to 20004 states and 63817 transitions. [2021-10-07 15:47:07,461 INFO L78 Accepts]: Start accepts. Automaton has 20004 states and 63817 transitions. Word has length 53 [2021-10-07 15:47:07,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:07,462 INFO L470 AbstractCegarLoop]: Abstraction has 20004 states and 63817 transitions. [2021-10-07 15:47:07,462 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) [2021-10-07 15:47:07,462 INFO L276 IsEmpty]: Start isEmpty. Operand 20004 states and 63817 transitions. [2021-10-07 15:47:07,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:47:07,503 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:07,503 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] [2021-10-07 15:47:07,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-10-07 15:47:07,703 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 [2021-10-07 15:47:07,704 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)] === [2021-10-07 15:47:07,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:07,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1312444068, now seen corresponding path program 24 times [2021-10-07 15:47:07,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:07,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221635867] [2021-10-07 15:47:07,706 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:47:07,706 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:07,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:07,708 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) [2021-10-07 15:47:07,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-10-07 15:47:08,346 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:47:08,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:47:08,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:47:08,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:08,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:08,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:08,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:08,580 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:08,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221635867] [2021-10-07 15:47:08,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221635867] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:08,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:08,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-07 15:47:08,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290881984] [2021-10-07 15:47:08,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:47:08,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:08,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:47:08,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:47:08,583 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) [2021-10-07 15:47:08,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:08,730 INFO L93 Difference]: Finished difference Result 20974 states and 65602 transitions. [2021-10-07 15:47:08,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:47:08,730 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 [2021-10-07 15:47:08,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:08,780 INFO L225 Difference]: With dead ends: 20974 [2021-10-07 15:47:08,780 INFO L226 Difference]: Without dead ends: 19314 [2021-10-07 15:47:08,780 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.0ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:47:08,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19314 states. [2021-10-07 15:47:09,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19314 to 19278. [2021-10-07 15:47:09,298 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) [2021-10-07 15:47:09,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19278 states to 19278 states and 60959 transitions. [2021-10-07 15:47:09,354 INFO L78 Accepts]: Start accepts. Automaton has 19278 states and 60959 transitions. Word has length 53 [2021-10-07 15:47:09,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:09,354 INFO L470 AbstractCegarLoop]: Abstraction has 19278 states and 60959 transitions. [2021-10-07 15:47:09,355 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) [2021-10-07 15:47:09,355 INFO L276 IsEmpty]: Start isEmpty. Operand 19278 states and 60959 transitions. [2021-10-07 15:47:09,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:47:09,389 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:09,390 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] [2021-10-07 15:47:09,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-10-07 15:47:09,593 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 [2021-10-07 15:47:09,594 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)] === [2021-10-07 15:47:09,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:09,594 INFO L82 PathProgramCache]: Analyzing trace with hash 877679960, now seen corresponding path program 25 times [2021-10-07 15:47:09,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:09,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267897585] [2021-10-07 15:47:09,595 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:47:09,596 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:09,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:09,597 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) [2021-10-07 15:47:09,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-07 15:47:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:47:10,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-07 15:47:10,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:10,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:10,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:11,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:11,390 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:11,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267897585] [2021-10-07 15:47:11,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267897585] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:11,390 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:11,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-10-07 15:47:11,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330964774] [2021-10-07 15:47:11,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-07 15:47:11,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:11,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-07 15:47:11,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-10-07 15:47:11,392 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) [2021-10-07 15:47:13,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:13,255 INFO L93 Difference]: Finished difference Result 23284 states and 72631 transitions. [2021-10-07 15:47:13,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-07 15:47:13,256 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 [2021-10-07 15:47:13,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:13,314 INFO L225 Difference]: With dead ends: 23284 [2021-10-07 15:47:13,314 INFO L226 Difference]: Without dead ends: 22736 [2021-10-07 15:47:13,314 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 671.7ms TimeCoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2021-10-07 15:47:13,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22736 states. [2021-10-07 15:47:13,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22736 to 19324. [2021-10-07 15:47:13,904 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) [2021-10-07 15:47:13,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19324 states to 19324 states and 61078 transitions. [2021-10-07 15:47:13,960 INFO L78 Accepts]: Start accepts. Automaton has 19324 states and 61078 transitions. Word has length 53 [2021-10-07 15:47:13,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:13,960 INFO L470 AbstractCegarLoop]: Abstraction has 19324 states and 61078 transitions. [2021-10-07 15:47:13,960 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) [2021-10-07 15:47:13,960 INFO L276 IsEmpty]: Start isEmpty. Operand 19324 states and 61078 transitions. [2021-10-07 15:47:13,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:47:13,995 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:13,995 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] [2021-10-07 15:47:14,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-10-07 15:47:14,195 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 [2021-10-07 15:47:14,196 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)] === [2021-10-07 15:47:14,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:14,197 INFO L82 PathProgramCache]: Analyzing trace with hash 591267090, now seen corresponding path program 26 times [2021-10-07 15:47:14,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:14,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147235911] [2021-10-07 15:47:14,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:47:14,198 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:14,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:14,200 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) [2021-10-07 15:47:14,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-07 15:47:14,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:47:14,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:47:14,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-07 15:47:14,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:15,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:15,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:16,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:16,014 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:16,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147235911] [2021-10-07 15:47:16,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147235911] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:16,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:16,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:47:16,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207814859] [2021-10-07 15:47:16,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:47:16,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:16,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:47:16,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:47:16,016 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) [2021-10-07 15:47:18,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:18,037 INFO L93 Difference]: Finished difference Result 24078 states and 74871 transitions. [2021-10-07 15:47:18,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-07 15:47:18,038 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 [2021-10-07 15:47:18,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:18,098 INFO L225 Difference]: With dead ends: 24078 [2021-10-07 15:47:18,099 INFO L226 Difference]: Without dead ends: 23518 [2021-10-07 15:47:18,099 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 730.8ms TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2021-10-07 15:47:18,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23518 states. [2021-10-07 15:47:18,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23518 to 19442. [2021-10-07 15:47:18,473 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) [2021-10-07 15:47:18,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19442 states to 19442 states and 61415 transitions. [2021-10-07 15:47:18,786 INFO L78 Accepts]: Start accepts. Automaton has 19442 states and 61415 transitions. Word has length 53 [2021-10-07 15:47:18,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:18,786 INFO L470 AbstractCegarLoop]: Abstraction has 19442 states and 61415 transitions. [2021-10-07 15:47:18,786 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) [2021-10-07 15:47:18,787 INFO L276 IsEmpty]: Start isEmpty. Operand 19442 states and 61415 transitions. [2021-10-07 15:47:18,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:47:18,832 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:18,833 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] [2021-10-07 15:47:18,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-10-07 15:47:19,047 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 [2021-10-07 15:47:19,048 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)] === [2021-10-07 15:47:19,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:19,049 INFO L82 PathProgramCache]: Analyzing trace with hash 436301370, now seen corresponding path program 27 times [2021-10-07 15:47:19,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:19,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051574946] [2021-10-07 15:47:19,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:47:19,050 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:19,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:19,052 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) [2021-10-07 15:47:19,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-10-07 15:47:19,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:47:19,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:47:19,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-07 15:47:19,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:20,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:20,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:20,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:20,924 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:20,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051574946] [2021-10-07 15:47:20,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051574946] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:20,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:20,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:47:20,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640404929] [2021-10-07 15:47:20,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:47:20,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:20,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:47:20,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:47:20,927 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) [2021-10-07 15:47:22,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:22,449 INFO L93 Difference]: Finished difference Result 23266 states and 72334 transitions. [2021-10-07 15:47:22,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-07 15:47:22,450 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 [2021-10-07 15:47:22,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:22,684 INFO L225 Difference]: With dead ends: 23266 [2021-10-07 15:47:22,684 INFO L226 Difference]: Without dead ends: 22712 [2021-10-07 15:47:22,684 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 643.1ms TimeCoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2021-10-07 15:47:22,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22712 states. [2021-10-07 15:47:23,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22712 to 19402. [2021-10-07 15:47:23,031 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) [2021-10-07 15:47:23,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19402 states to 19402 states and 61301 transitions. [2021-10-07 15:47:23,086 INFO L78 Accepts]: Start accepts. Automaton has 19402 states and 61301 transitions. Word has length 53 [2021-10-07 15:47:23,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:23,086 INFO L470 AbstractCegarLoop]: Abstraction has 19402 states and 61301 transitions. [2021-10-07 15:47:23,087 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) [2021-10-07 15:47:23,087 INFO L276 IsEmpty]: Start isEmpty. Operand 19402 states and 61301 transitions. [2021-10-07 15:47:23,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:47:23,121 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:23,121 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] [2021-10-07 15:47:23,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-10-07 15:47:23,322 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 [2021-10-07 15:47:23,322 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)] === [2021-10-07 15:47:23,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:23,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1614325546, now seen corresponding path program 28 times [2021-10-07 15:47:23,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:23,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101894193] [2021-10-07 15:47:23,325 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:47:23,325 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:23,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:23,326 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) [2021-10-07 15:47:23,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-10-07 15:47:24,187 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:47:24,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:47:24,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:47:24,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:24,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:24,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:24,427 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:24,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101894193] [2021-10-07 15:47:24,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101894193] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:24,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:24,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-07 15:47:24,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346881715] [2021-10-07 15:47:24,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:47:24,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:24,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:47:24,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:47:24,429 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) [2021-10-07 15:47:24,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:24,563 INFO L93 Difference]: Finished difference Result 20388 states and 63556 transitions. [2021-10-07 15:47:24,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:47:24,564 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 [2021-10-07 15:47:24,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:24,612 INFO L225 Difference]: With dead ends: 20388 [2021-10-07 15:47:24,612 INFO L226 Difference]: Without dead ends: 19238 [2021-10-07 15:47:24,612 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.8ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:47:24,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19238 states. [2021-10-07 15:47:24,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19238 to 19190. [2021-10-07 15:47:24,951 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) [2021-10-07 15:47:25,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19190 states to 19190 states and 60201 transitions. [2021-10-07 15:47:25,243 INFO L78 Accepts]: Start accepts. Automaton has 19190 states and 60201 transitions. Word has length 53 [2021-10-07 15:47:25,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:25,243 INFO L470 AbstractCegarLoop]: Abstraction has 19190 states and 60201 transitions. [2021-10-07 15:47:25,243 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) [2021-10-07 15:47:25,243 INFO L276 IsEmpty]: Start isEmpty. Operand 19190 states and 60201 transitions. [2021-10-07 15:47:25,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:47:25,279 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:25,279 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] [2021-10-07 15:47:25,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-10-07 15:47:25,479 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 [2021-10-07 15:47:25,480 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)] === [2021-10-07 15:47:25,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:25,481 INFO L82 PathProgramCache]: Analyzing trace with hash 58061248, now seen corresponding path program 29 times [2021-10-07 15:47:25,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:25,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352630858] [2021-10-07 15:47:25,482 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:47:25,483 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:25,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:25,484 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) [2021-10-07 15:47:25,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-10-07 15:47:26,258 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:47:26,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:47:26,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-07 15:47:26,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:26,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:26,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:27,376 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:27,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352630858] [2021-10-07 15:47:27,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352630858] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:27,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:27,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:47:27,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515819972] [2021-10-07 15:47:27,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:47:27,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:27,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:47:27,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:47:27,379 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) [2021-10-07 15:47:28,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:28,717 INFO L93 Difference]: Finished difference Result 24052 states and 74217 transitions. [2021-10-07 15:47:28,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-07 15:47:28,719 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 [2021-10-07 15:47:28,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:28,965 INFO L225 Difference]: With dead ends: 24052 [2021-10-07 15:47:28,966 INFO L226 Difference]: Without dead ends: 23508 [2021-10-07 15:47:28,966 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 528.2ms TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:47:29,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23508 states. [2021-10-07 15:47:29,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23508 to 19314. [2021-10-07 15:47:29,346 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) [2021-10-07 15:47:29,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19314 states to 19314 states and 60587 transitions. [2021-10-07 15:47:29,400 INFO L78 Accepts]: Start accepts. Automaton has 19314 states and 60587 transitions. Word has length 53 [2021-10-07 15:47:29,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:29,401 INFO L470 AbstractCegarLoop]: Abstraction has 19314 states and 60587 transitions. [2021-10-07 15:47:29,401 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) [2021-10-07 15:47:29,401 INFO L276 IsEmpty]: Start isEmpty. Operand 19314 states and 60587 transitions. [2021-10-07 15:47:29,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:47:29,436 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:29,436 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] [2021-10-07 15:47:29,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-10-07 15:47:29,636 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 [2021-10-07 15:47:29,637 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)] === [2021-10-07 15:47:29,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:29,638 INFO L82 PathProgramCache]: Analyzing trace with hash -2102508258, now seen corresponding path program 30 times [2021-10-07 15:47:29,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:29,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469345016] [2021-10-07 15:47:29,640 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:47:29,640 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:29,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:29,641 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) [2021-10-07 15:47:29,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-10-07 15:47:30,598 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:47:30,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:47:30,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-07 15:47:30,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:30,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:30,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:31,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:31,094 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:31,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469345016] [2021-10-07 15:47:31,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [469345016] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:31,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:31,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-07 15:47:31,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016681228] [2021-10-07 15:47:31,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-07 15:47:31,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:31,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-07 15:47:31,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-07 15:47:31,097 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) [2021-10-07 15:47:31,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:31,902 INFO L93 Difference]: Finished difference Result 22042 states and 68640 transitions. [2021-10-07 15:47:31,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-07 15:47:31,903 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 [2021-10-07 15:47:31,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:31,960 INFO L225 Difference]: With dead ends: 22042 [2021-10-07 15:47:31,960 INFO L226 Difference]: Without dead ends: 22042 [2021-10-07 15:47:31,960 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 207.5ms TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-10-07 15:47:32,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22042 states. [2021-10-07 15:47:32,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22042 to 19556. [2021-10-07 15:47:32,483 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) [2021-10-07 15:47:32,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19556 states to 19556 states and 61329 transitions. [2021-10-07 15:47:32,536 INFO L78 Accepts]: Start accepts. Automaton has 19556 states and 61329 transitions. Word has length 53 [2021-10-07 15:47:32,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:32,536 INFO L470 AbstractCegarLoop]: Abstraction has 19556 states and 61329 transitions. [2021-10-07 15:47:32,537 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) [2021-10-07 15:47:32,537 INFO L276 IsEmpty]: Start isEmpty. Operand 19556 states and 61329 transitions. [2021-10-07 15:47:32,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:47:32,573 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:32,574 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] [2021-10-07 15:47:32,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-10-07 15:47:32,774 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 [2021-10-07 15:47:32,775 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)] === [2021-10-07 15:47:32,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:32,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1958367834, now seen corresponding path program 31 times [2021-10-07 15:47:32,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:32,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356268722] [2021-10-07 15:47:32,777 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:47:32,777 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:32,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:32,779 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) [2021-10-07 15:47:32,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-10-07 15:47:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:47:33,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-07 15:47:33,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:33,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:33,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:34,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:34,122 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:34,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356268722] [2021-10-07 15:47:34,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356268722] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:34,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:34,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-07 15:47:34,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218446753] [2021-10-07 15:47:34,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-07 15:47:34,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:34,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-07 15:47:34,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-10-07 15:47:34,126 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) [2021-10-07 15:47:35,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:35,022 INFO L93 Difference]: Finished difference Result 22090 states and 68533 transitions. [2021-10-07 15:47:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-07 15:47:35,022 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 [2021-10-07 15:47:35,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:35,260 INFO L225 Difference]: With dead ends: 22090 [2021-10-07 15:47:35,260 INFO L226 Difference]: Without dead ends: 22090 [2021-10-07 15:47:35,261 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 272.6ms TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2021-10-07 15:47:35,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22090 states. [2021-10-07 15:47:35,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22090 to 19208. [2021-10-07 15:47:35,606 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) [2021-10-07 15:47:35,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19208 states to 19208 states and 60108 transitions. [2021-10-07 15:47:35,660 INFO L78 Accepts]: Start accepts. Automaton has 19208 states and 60108 transitions. Word has length 53 [2021-10-07 15:47:35,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:35,661 INFO L470 AbstractCegarLoop]: Abstraction has 19208 states and 60108 transitions. [2021-10-07 15:47:35,661 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) [2021-10-07 15:47:35,661 INFO L276 IsEmpty]: Start isEmpty. Operand 19208 states and 60108 transitions. [2021-10-07 15:47:35,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:47:35,695 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:35,695 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] [2021-10-07 15:47:35,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-10-07 15:47:35,895 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 [2021-10-07 15:47:35,896 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)] === [2021-10-07 15:47:35,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:35,897 INFO L82 PathProgramCache]: Analyzing trace with hash 2034656612, now seen corresponding path program 32 times [2021-10-07 15:47:35,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:35,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575127700] [2021-10-07 15:47:35,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:47:35,898 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:35,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:35,899 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) [2021-10-07 15:47:35,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-10-07 15:47:36,941 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:47:36,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:47:36,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-07 15:47:36,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:37,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:37,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:38,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:38,056 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:38,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575127700] [2021-10-07 15:47:38,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575127700] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:38,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:38,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:47:38,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193254936] [2021-10-07 15:47:38,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:47:38,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:38,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:47:38,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:47:38,058 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) [2021-10-07 15:47:41,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:41,293 INFO L93 Difference]: Finished difference Result 23692 states and 72729 transitions. [2021-10-07 15:47:41,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-07 15:47:41,294 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 [2021-10-07 15:47:41,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:41,352 INFO L225 Difference]: With dead ends: 23692 [2021-10-07 15:47:41,352 INFO L226 Difference]: Without dead ends: 23148 [2021-10-07 15:47:41,353 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1435.0ms TimeCoverageRelationStatistics Valid=146, Invalid=846, Unknown=0, NotChecked=0, Total=992 [2021-10-07 15:47:41,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23148 states. [2021-10-07 15:47:41,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23148 to 18428. [2021-10-07 15:47:41,848 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) [2021-10-07 15:47:41,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18428 states to 18428 states and 57765 transitions. [2021-10-07 15:47:41,898 INFO L78 Accepts]: Start accepts. Automaton has 18428 states and 57765 transitions. Word has length 53 [2021-10-07 15:47:41,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:41,898 INFO L470 AbstractCegarLoop]: Abstraction has 18428 states and 57765 transitions. [2021-10-07 15:47:41,899 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) [2021-10-07 15:47:41,899 INFO L276 IsEmpty]: Start isEmpty. Operand 18428 states and 57765 transitions. [2021-10-07 15:47:41,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:47:41,930 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:41,930 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] [2021-10-07 15:47:41,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-10-07 15:47:42,131 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 [2021-10-07 15:47:42,131 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)] === [2021-10-07 15:47:42,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:42,133 INFO L82 PathProgramCache]: Analyzing trace with hash 811181406, now seen corresponding path program 33 times [2021-10-07 15:47:42,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:42,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728621095] [2021-10-07 15:47:42,134 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:47:42,134 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:42,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:42,135 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) [2021-10-07 15:47:42,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-10-07 15:47:42,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:47:42,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:47:43,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-07 15:47:43,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:43,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:43,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:43,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:43,460 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:43,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728621095] [2021-10-07 15:47:43,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728621095] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:43,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:43,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-07 15:47:43,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782735664] [2021-10-07 15:47:43,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 15:47:43,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:43,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 15:47:43,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:47:43,463 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) [2021-10-07 15:47:43,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:43,756 INFO L93 Difference]: Finished difference Result 20045 states and 61989 transitions. [2021-10-07 15:47:43,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-07 15:47:43,757 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 [2021-10-07 15:47:43,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:43,807 INFO L225 Difference]: With dead ends: 20045 [2021-10-07 15:47:43,807 INFO L226 Difference]: Without dead ends: 19732 [2021-10-07 15:47:43,808 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 104.2ms TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-07 15:47:43,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19732 states. [2021-10-07 15:47:44,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19732 to 18548. [2021-10-07 15:47:44,149 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) [2021-10-07 15:47:44,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18548 states to 18548 states and 58010 transitions. [2021-10-07 15:47:44,446 INFO L78 Accepts]: Start accepts. Automaton has 18548 states and 58010 transitions. Word has length 53 [2021-10-07 15:47:44,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:44,447 INFO L470 AbstractCegarLoop]: Abstraction has 18548 states and 58010 transitions. [2021-10-07 15:47:44,447 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) [2021-10-07 15:47:44,447 INFO L276 IsEmpty]: Start isEmpty. Operand 18548 states and 58010 transitions. [2021-10-07 15:47:44,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:47:44,479 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:44,480 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] [2021-10-07 15:47:44,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-10-07 15:47:44,680 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 [2021-10-07 15:47:44,680 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)] === [2021-10-07 15:47:44,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:44,681 INFO L82 PathProgramCache]: Analyzing trace with hash -851238808, now seen corresponding path program 34 times [2021-10-07 15:47:44,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:44,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79191678] [2021-10-07 15:47:44,683 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:47:44,683 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:44,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:44,684 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) [2021-10-07 15:47:44,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-10-07 15:47:45,600 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:47:45,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:47:45,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-07 15:47:45,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:45,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:45,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:45,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:45,961 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:45,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79191678] [2021-10-07 15:47:45,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79191678] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:45,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:45,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-07 15:47:45,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078448707] [2021-10-07 15:47:45,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 15:47:45,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:45,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 15:47:45,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:47:45,963 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) [2021-10-07 15:47:46,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:46,268 INFO L93 Difference]: Finished difference Result 19565 states and 60617 transitions. [2021-10-07 15:47:46,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-07 15:47:46,269 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 [2021-10-07 15:47:46,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:46,318 INFO L225 Difference]: With dead ends: 19565 [2021-10-07 15:47:46,318 INFO L226 Difference]: Without dead ends: 19106 [2021-10-07 15:47:46,319 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 104.0ms TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-07 15:47:46,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19106 states. [2021-10-07 15:47:46,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19106 to 18468. [2021-10-07 15:47:46,779 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) [2021-10-07 15:47:46,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18468 states to 18468 states and 57698 transitions. [2021-10-07 15:47:46,830 INFO L78 Accepts]: Start accepts. Automaton has 18468 states and 57698 transitions. Word has length 53 [2021-10-07 15:47:46,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:46,830 INFO L470 AbstractCegarLoop]: Abstraction has 18468 states and 57698 transitions. [2021-10-07 15:47:46,830 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) [2021-10-07 15:47:46,830 INFO L276 IsEmpty]: Start isEmpty. Operand 18468 states and 57698 transitions. [2021-10-07 15:47:46,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-07 15:47:46,863 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:46,863 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] [2021-10-07 15:47:46,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-10-07 15:47:47,063 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 [2021-10-07 15:47:47,064 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)] === [2021-10-07 15:47:47,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:47,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1595616168, now seen corresponding path program 35 times [2021-10-07 15:47:47,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:47,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127730514] [2021-10-07 15:47:47,066 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:47:47,066 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:47,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:47,067 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) [2021-10-07 15:47:47,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-10-07 15:47:47,941 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:47:47,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:47:47,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-07 15:47:47,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:48,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:48,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:48,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:48,305 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:48,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127730514] [2021-10-07 15:47:48,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127730514] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:48,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:48,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-07 15:47:48,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101228503] [2021-10-07 15:47:48,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 15:47:48,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:48,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 15:47:48,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:47:48,307 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) [2021-10-07 15:47:48,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:48,600 INFO L93 Difference]: Finished difference Result 19341 states and 59907 transitions. [2021-10-07 15:47:48,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-07 15:47:48,601 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 [2021-10-07 15:47:48,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:48,905 INFO L225 Difference]: With dead ends: 19341 [2021-10-07 15:47:48,906 INFO L226 Difference]: Without dead ends: 19152 [2021-10-07 15:47:48,906 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 108.2ms TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-07 15:47:48,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19152 states. [2021-10-07 15:47:49,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19152 to 18510. [2021-10-07 15:47:49,379 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) [2021-10-07 15:47:49,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18510 states to 18510 states and 57779 transitions. [2021-10-07 15:47:49,447 INFO L78 Accepts]: Start accepts. Automaton has 18510 states and 57779 transitions. Word has length 53 [2021-10-07 15:47:49,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:49,447 INFO L470 AbstractCegarLoop]: Abstraction has 18510 states and 57779 transitions. [2021-10-07 15:47:49,447 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) [2021-10-07 15:47:49,447 INFO L276 IsEmpty]: Start isEmpty. Operand 18510 states and 57779 transitions. [2021-10-07 15:47:49,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:47:49,489 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:49,489 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] [2021-10-07 15:47:49,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Ended with exit code 0 [2021-10-07 15:47:49,702 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 [2021-10-07 15:47:49,703 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)] === [2021-10-07 15:47:49,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:49,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1869385307, now seen corresponding path program 1 times [2021-10-07 15:47:49,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:49,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957639087] [2021-10-07 15:47:49,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:47:49,705 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:49,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:49,706 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) [2021-10-07 15:47:49,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-10-07 15:47:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:47:50,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-07 15:47:50,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:51,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:51,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:51,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:51,795 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:51,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957639087] [2021-10-07 15:47:51,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957639087] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:51,795 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:51,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-10-07 15:47:51,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152121702] [2021-10-07 15:47:51,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-07 15:47:51,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:51,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-07 15:47:51,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-10-07 15:47:51,797 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) [2021-10-07 15:47:52,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:52,825 INFO L93 Difference]: Finished difference Result 24292 states and 75001 transitions. [2021-10-07 15:47:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-07 15:47:52,826 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 [2021-10-07 15:47:52,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:52,887 INFO L225 Difference]: With dead ends: 24292 [2021-10-07 15:47:52,887 INFO L226 Difference]: Without dead ends: 22964 [2021-10-07 15:47:52,888 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 336.1ms TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2021-10-07 15:47:52,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22964 states. [2021-10-07 15:47:53,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22964 to 19296. [2021-10-07 15:47:53,415 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) [2021-10-07 15:47:53,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19296 states to 19296 states and 59920 transitions. [2021-10-07 15:47:53,469 INFO L78 Accepts]: Start accepts. Automaton has 19296 states and 59920 transitions. Word has length 54 [2021-10-07 15:47:53,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:53,470 INFO L470 AbstractCegarLoop]: Abstraction has 19296 states and 59920 transitions. [2021-10-07 15:47:53,470 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) [2021-10-07 15:47:53,470 INFO L276 IsEmpty]: Start isEmpty. Operand 19296 states and 59920 transitions. [2021-10-07 15:47:53,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:47:53,506 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:53,506 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] [2021-10-07 15:47:53,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Ended with exit code 0 [2021-10-07 15:47:53,707 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 [2021-10-07 15:47:53,707 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)] === [2021-10-07 15:47:53,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:53,708 INFO L82 PathProgramCache]: Analyzing trace with hash 50215559, now seen corresponding path program 1 times [2021-10-07 15:47:53,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:53,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677389708] [2021-10-07 15:47:53,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:47:53,710 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:53,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:53,712 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) [2021-10-07 15:47:53,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-10-07 15:47:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:47:54,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 15:47:54,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:54,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:54,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:47:55,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:55,535 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:47:55,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677389708] [2021-10-07 15:47:55,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677389708] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:47:55,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:47:55,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:47:55,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699921985] [2021-10-07 15:47:55,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:47:55,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:47:55,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:47:55,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:47:55,536 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) [2021-10-07 15:47:56,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:47:56,964 INFO L93 Difference]: Finished difference Result 25310 states and 77934 transitions. [2021-10-07 15:47:56,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-07 15:47:56,965 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 [2021-10-07 15:47:56,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:47:57,027 INFO L225 Difference]: With dead ends: 25310 [2021-10-07 15:47:57,027 INFO L226 Difference]: Without dead ends: 24770 [2021-10-07 15:47:57,027 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 408.5ms TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2021-10-07 15:47:57,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24770 states. [2021-10-07 15:47:57,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24770 to 21052. [2021-10-07 15:47:57,648 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) [2021-10-07 15:47:57,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21052 states to 21052 states and 65247 transitions. [2021-10-07 15:47:57,719 INFO L78 Accepts]: Start accepts. Automaton has 21052 states and 65247 transitions. Word has length 54 [2021-10-07 15:47:57,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:47:57,719 INFO L470 AbstractCegarLoop]: Abstraction has 21052 states and 65247 transitions. [2021-10-07 15:47:57,719 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) [2021-10-07 15:47:57,719 INFO L276 IsEmpty]: Start isEmpty. Operand 21052 states and 65247 transitions. [2021-10-07 15:47:57,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:47:57,755 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:47:57,755 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] [2021-10-07 15:47:57,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Ended with exit code 0 [2021-10-07 15:47:57,956 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 [2021-10-07 15:47:57,956 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)] === [2021-10-07 15:47:57,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:47:57,957 INFO L82 PathProgramCache]: Analyzing trace with hash -258536105, now seen corresponding path program 2 times [2021-10-07 15:47:57,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:47:57,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751085248] [2021-10-07 15:47:57,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:47:57,959 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:47:57,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:47:57,960 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) [2021-10-07 15:47:57,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-10-07 15:47:58,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:47:58,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:47:58,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:47:58,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:47:59,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:47:59,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:48:00,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:00,071 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:48:00,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751085248] [2021-10-07 15:48:00,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751085248] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:48:00,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:48:00,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:48:00,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938011470] [2021-10-07 15:48:00,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:48:00,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:48:00,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:48:00,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:48:00,074 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) [2021-10-07 15:48:02,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:48:02,338 INFO L93 Difference]: Finished difference Result 20808 states and 63551 transitions. [2021-10-07 15:48:02,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-07 15:48:02,339 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 [2021-10-07 15:48:02,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:48:02,387 INFO L225 Difference]: With dead ends: 20808 [2021-10-07 15:48:02,388 INFO L226 Difference]: Without dead ends: 20722 [2021-10-07 15:48:02,388 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 867.0ms TimeCoverageRelationStatistics Valid=185, Invalid=1075, Unknown=0, NotChecked=0, Total=1260 [2021-10-07 15:48:02,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20722 states. [2021-10-07 15:48:02,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20722 to 19916. [2021-10-07 15:48:02,732 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) [2021-10-07 15:48:02,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19916 states to 19916 states and 61177 transitions. [2021-10-07 15:48:02,787 INFO L78 Accepts]: Start accepts. Automaton has 19916 states and 61177 transitions. Word has length 54 [2021-10-07 15:48:02,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:48:02,787 INFO L470 AbstractCegarLoop]: Abstraction has 19916 states and 61177 transitions. [2021-10-07 15:48:02,787 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) [2021-10-07 15:48:02,787 INFO L276 IsEmpty]: Start isEmpty. Operand 19916 states and 61177 transitions. [2021-10-07 15:48:02,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:48:02,823 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:48:02,823 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] [2021-10-07 15:48:02,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Ended with exit code 0 [2021-10-07 15:48:03,023 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 [2021-10-07 15:48:03,024 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)] === [2021-10-07 15:48:03,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:48:03,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1766887297, now seen corresponding path program 3 times [2021-10-07 15:48:03,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:48:03,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678046730] [2021-10-07 15:48:03,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:48:03,026 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:48:03,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:48:03,027 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) [2021-10-07 15:48:03,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-10-07 15:48:04,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:48:04,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:48:04,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:48:04,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:48:04,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:04,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:48:05,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:05,433 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:48:05,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678046730] [2021-10-07 15:48:05,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1678046730] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:48:05,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:48:05,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:48:05,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799303816] [2021-10-07 15:48:05,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:48:05,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:48:05,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:48:05,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:48:05,435 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) [2021-10-07 15:48:07,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:48:07,428 INFO L93 Difference]: Finished difference Result 20804 states and 63529 transitions. [2021-10-07 15:48:07,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:48:07,428 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 [2021-10-07 15:48:07,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:48:07,478 INFO L225 Difference]: With dead ends: 20804 [2021-10-07 15:48:07,478 INFO L226 Difference]: Without dead ends: 20726 [2021-10-07 15:48:07,479 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 922.6ms TimeCoverageRelationStatistics Valid=188, Invalid=1072, Unknown=0, NotChecked=0, Total=1260 [2021-10-07 15:48:07,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20726 states. [2021-10-07 15:48:07,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20726 to 19912. [2021-10-07 15:48:07,945 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) [2021-10-07 15:48:08,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19912 states to 19912 states and 61165 transitions. [2021-10-07 15:48:08,003 INFO L78 Accepts]: Start accepts. Automaton has 19912 states and 61165 transitions. Word has length 54 [2021-10-07 15:48:08,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:48:08,003 INFO L470 AbstractCegarLoop]: Abstraction has 19912 states and 61165 transitions. [2021-10-07 15:48:08,003 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) [2021-10-07 15:48:08,003 INFO L276 IsEmpty]: Start isEmpty. Operand 19912 states and 61165 transitions. [2021-10-07 15:48:08,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:48:08,038 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:48:08,038 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] [2021-10-07 15:48:08,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-10-07 15:48:08,238 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 [2021-10-07 15:48:08,239 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)] === [2021-10-07 15:48:08,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:48:08,240 INFO L82 PathProgramCache]: Analyzing trace with hash -292384685, now seen corresponding path program 4 times [2021-10-07 15:48:08,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:48:08,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72312683] [2021-10-07 15:48:08,242 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:48:08,242 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:48:08,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:48:08,243 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) [2021-10-07 15:48:08,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-10-07 15:48:09,283 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:48:09,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:48:09,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:48:09,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:48:09,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:09,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:48:10,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:10,681 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:48:10,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72312683] [2021-10-07 15:48:10,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72312683] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:48:10,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:48:10,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:48:10,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153291504] [2021-10-07 15:48:10,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:48:10,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:48:10,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:48:10,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:48:10,683 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) [2021-10-07 15:48:13,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:48:13,122 INFO L93 Difference]: Finished difference Result 20800 states and 63517 transitions. [2021-10-07 15:48:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-07 15:48:13,123 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 [2021-10-07 15:48:13,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:48:13,171 INFO L225 Difference]: With dead ends: 20800 [2021-10-07 15:48:13,171 INFO L226 Difference]: Without dead ends: 20710 [2021-10-07 15:48:13,172 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1082.6ms TimeCoverageRelationStatistics Valid=199, Invalid=1283, Unknown=0, NotChecked=0, Total=1482 [2021-10-07 15:48:13,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20710 states. [2021-10-07 15:48:13,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20710 to 19904. [2021-10-07 15:48:13,641 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) [2021-10-07 15:48:13,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19904 states to 19904 states and 61141 transitions. [2021-10-07 15:48:13,695 INFO L78 Accepts]: Start accepts. Automaton has 19904 states and 61141 transitions. Word has length 54 [2021-10-07 15:48:13,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:48:13,696 INFO L470 AbstractCegarLoop]: Abstraction has 19904 states and 61141 transitions. [2021-10-07 15:48:13,696 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) [2021-10-07 15:48:13,696 INFO L276 IsEmpty]: Start isEmpty. Operand 19904 states and 61141 transitions. [2021-10-07 15:48:13,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:48:13,731 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:48:13,731 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, 1] [2021-10-07 15:48:13,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-10-07 15:48:13,931 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 [2021-10-07 15:48:13,932 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)] === [2021-10-07 15:48:13,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:48:13,933 INFO L82 PathProgramCache]: Analyzing trace with hash 875206727, now seen corresponding path program 5 times [2021-10-07 15:48:13,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:48:13,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228598125] [2021-10-07 15:48:13,935 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:48:13,935 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:48:13,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:48:13,936 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) [2021-10-07 15:48:13,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-10-07 15:48:15,007 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:48:15,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:48:15,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:48:15,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:48:15,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:15,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:48:16,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:16,263 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:48:16,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228598125] [2021-10-07 15:48:16,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228598125] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:48:16,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:48:16,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:48:16,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342368038] [2021-10-07 15:48:16,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:48:16,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:48:16,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:48:16,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:48:16,264 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) [2021-10-07 15:48:17,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:48:17,656 INFO L93 Difference]: Finished difference Result 20724 states and 63335 transitions. [2021-10-07 15:48:17,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-07 15:48:17,657 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 [2021-10-07 15:48:17,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:48:17,704 INFO L225 Difference]: With dead ends: 20724 [2021-10-07 15:48:17,704 INFO L226 Difference]: Without dead ends: 20634 [2021-10-07 15:48:17,705 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 673.3ms TimeCoverageRelationStatistics Valid=105, Invalid=707, Unknown=0, NotChecked=0, Total=812 [2021-10-07 15:48:17,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20634 states. [2021-10-07 15:48:18,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20634 to 19900. [2021-10-07 15:48:18,201 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) [2021-10-07 15:48:18,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19900 states to 19900 states and 61133 transitions. [2021-10-07 15:48:18,255 INFO L78 Accepts]: Start accepts. Automaton has 19900 states and 61133 transitions. Word has length 54 [2021-10-07 15:48:18,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:48:18,256 INFO L470 AbstractCegarLoop]: Abstraction has 19900 states and 61133 transitions. [2021-10-07 15:48:18,256 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) [2021-10-07 15:48:18,256 INFO L276 IsEmpty]: Start isEmpty. Operand 19900 states and 61133 transitions. [2021-10-07 15:48:18,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:48:18,290 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:48:18,290 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] [2021-10-07 15:48:18,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2021-10-07 15:48:18,490 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 [2021-10-07 15:48:18,491 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)] === [2021-10-07 15:48:18,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:48:18,492 INFO L82 PathProgramCache]: Analyzing trace with hash -260786493, now seen corresponding path program 6 times [2021-10-07 15:48:18,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:48:18,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417916036] [2021-10-07 15:48:18,493 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:48:18,493 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:48:18,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:48:18,495 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) [2021-10-07 15:48:18,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-10-07 15:48:19,587 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:48:19,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:48:19,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 15:48:19,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:48:19,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:19,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:48:20,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:20,052 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:48:20,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417916036] [2021-10-07 15:48:20,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417916036] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:48:20,053 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:48:20,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-07 15:48:20,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696526079] [2021-10-07 15:48:20,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-07 15:48:20,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:48:20,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-07 15:48:20,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-10-07 15:48:20,055 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) [2021-10-07 15:48:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:48:22,707 INFO L93 Difference]: Finished difference Result 29534 states and 88393 transitions. [2021-10-07 15:48:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-07 15:48:22,708 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 [2021-10-07 15:48:22,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:48:22,778 INFO L225 Difference]: With dead ends: 29534 [2021-10-07 15:48:22,778 INFO L226 Difference]: Without dead ends: 29530 [2021-10-07 15:48:22,779 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 779 ImplicationChecksByTransitivity, 989.3ms TimeCoverageRelationStatistics Valid=563, Invalid=1987, Unknown=0, NotChecked=0, Total=2550 [2021-10-07 15:48:22,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29530 states. [2021-10-07 15:48:23,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29530 to 19972. [2021-10-07 15:48:23,408 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) [2021-10-07 15:48:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19972 states to 19972 states and 61327 transitions. [2021-10-07 15:48:23,461 INFO L78 Accepts]: Start accepts. Automaton has 19972 states and 61327 transitions. Word has length 54 [2021-10-07 15:48:23,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:48:23,461 INFO L470 AbstractCegarLoop]: Abstraction has 19972 states and 61327 transitions. [2021-10-07 15:48:23,461 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) [2021-10-07 15:48:23,462 INFO L276 IsEmpty]: Start isEmpty. Operand 19972 states and 61327 transitions. [2021-10-07 15:48:23,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:48:23,496 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:48:23,496 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] [2021-10-07 15:48:23,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-10-07 15:48:23,696 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 [2021-10-07 15:48:23,697 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)] === [2021-10-07 15:48:23,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:48:23,698 INFO L82 PathProgramCache]: Analyzing trace with hash -938955859, now seen corresponding path program 7 times [2021-10-07 15:48:23,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:48:23,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009508927] [2021-10-07 15:48:23,699 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:48:23,700 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:48:23,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:48:23,701 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) [2021-10-07 15:48:23,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-10-07 15:48:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:48:24,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-07 15:48:24,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:48:25,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:25,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:48:25,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:25,871 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:48:25,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009508927] [2021-10-07 15:48:25,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009508927] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:48:25,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:48:25,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:48:25,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42544443] [2021-10-07 15:48:25,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:48:25,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:48:25,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:48:25,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:48:25,873 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) [2021-10-07 15:48:30,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:48:30,572 INFO L93 Difference]: Finished difference Result 26004 states and 78302 transitions. [2021-10-07 15:48:30,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-07 15:48:30,572 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 [2021-10-07 15:48:30,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:48:30,640 INFO L225 Difference]: With dead ends: 26004 [2021-10-07 15:48:30,640 INFO L226 Difference]: Without dead ends: 25806 [2021-10-07 15:48:30,642 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1430 ImplicationChecksByTransitivity, 2903.2ms TimeCoverageRelationStatistics Valid=679, Invalid=4291, Unknown=0, NotChecked=0, Total=4970 [2021-10-07 15:48:30,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25806 states. [2021-10-07 15:48:31,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25806 to 20182. [2021-10-07 15:48:31,192 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) [2021-10-07 15:48:31,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20182 states to 20182 states and 61884 transitions. [2021-10-07 15:48:31,245 INFO L78 Accepts]: Start accepts. Automaton has 20182 states and 61884 transitions. Word has length 54 [2021-10-07 15:48:31,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:48:31,245 INFO L470 AbstractCegarLoop]: Abstraction has 20182 states and 61884 transitions. [2021-10-07 15:48:31,245 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) [2021-10-07 15:48:31,245 INFO L276 IsEmpty]: Start isEmpty. Operand 20182 states and 61884 transitions. [2021-10-07 15:48:31,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:48:31,283 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:48:31,283 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] [2021-10-07 15:48:31,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-10-07 15:48:31,484 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 [2021-10-07 15:48:31,484 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)] === [2021-10-07 15:48:31,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:48:31,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1497955887, now seen corresponding path program 8 times [2021-10-07 15:48:31,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:48:31,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760781747] [2021-10-07 15:48:31,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:48:31,487 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:48:31,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:48:31,488 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) [2021-10-07 15:48:31,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-10-07 15:48:32,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:48:32,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:48:32,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-07 15:48:32,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:48:32,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:32,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:48:33,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:33,588 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:48:33,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760781747] [2021-10-07 15:48:33,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760781747] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:48:33,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:48:33,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-07 15:48:33,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416371958] [2021-10-07 15:48:33,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-07 15:48:33,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:48:33,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-07 15:48:33,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-10-07 15:48:33,590 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) [2021-10-07 15:48:38,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:48:38,466 INFO L93 Difference]: Finished difference Result 25694 states and 77266 transitions. [2021-10-07 15:48:38,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-10-07 15:48:38,467 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 [2021-10-07 15:48:38,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:48:38,532 INFO L225 Difference]: With dead ends: 25694 [2021-10-07 15:48:38,532 INFO L226 Difference]: Without dead ends: 25396 [2021-10-07 15:48:38,533 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1516 ImplicationChecksByTransitivity, 2559.0ms TimeCoverageRelationStatistics Valid=699, Invalid=4271, Unknown=0, NotChecked=0, Total=4970 [2021-10-07 15:48:38,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25396 states. [2021-10-07 15:48:39,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25396 to 19678. [2021-10-07 15:48:39,052 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) [2021-10-07 15:48:39,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19678 states to 19678 states and 60402 transitions. [2021-10-07 15:48:39,105 INFO L78 Accepts]: Start accepts. Automaton has 19678 states and 60402 transitions. Word has length 54 [2021-10-07 15:48:39,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:48:39,106 INFO L470 AbstractCegarLoop]: Abstraction has 19678 states and 60402 transitions. [2021-10-07 15:48:39,106 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) [2021-10-07 15:48:39,106 INFO L276 IsEmpty]: Start isEmpty. Operand 19678 states and 60402 transitions. [2021-10-07 15:48:39,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:48:39,143 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:48:39,143 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] [2021-10-07 15:48:39,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-10-07 15:48:39,344 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 [2021-10-07 15:48:39,344 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)] === [2021-10-07 15:48:39,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:48:39,345 INFO L82 PathProgramCache]: Analyzing trace with hash -19381567, now seen corresponding path program 9 times [2021-10-07 15:48:39,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:48:39,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919806136] [2021-10-07 15:48:39,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:48:39,346 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:48:39,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:48:39,347 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) [2021-10-07 15:48:39,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-10-07 15:48:40,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:48:40,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:48:40,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 15:48:40,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:48:40,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:40,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:48:40,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:40,934 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:48:40,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919806136] [2021-10-07 15:48:40,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919806136] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:48:40,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:48:40,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-07 15:48:40,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592146295] [2021-10-07 15:48:40,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-07 15:48:40,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:48:40,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-07 15:48:40,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-10-07 15:48:40,937 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) [2021-10-07 15:48:42,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:48:42,336 INFO L93 Difference]: Finished difference Result 24488 states and 74231 transitions. [2021-10-07 15:48:42,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-07 15:48:42,336 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 [2021-10-07 15:48:42,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:48:42,393 INFO L225 Difference]: With dead ends: 24488 [2021-10-07 15:48:42,393 INFO L226 Difference]: Without dead ends: 24474 [2021-10-07 15:48:42,394 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 429.1ms TimeCoverageRelationStatistics Valid=186, Invalid=684, Unknown=0, NotChecked=0, Total=870 [2021-10-07 15:48:42,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24474 states. [2021-10-07 15:48:42,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24474 to 19666. [2021-10-07 15:48:42,779 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) [2021-10-07 15:48:43,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19666 states to 19666 states and 60373 transitions. [2021-10-07 15:48:43,078 INFO L78 Accepts]: Start accepts. Automaton has 19666 states and 60373 transitions. Word has length 54 [2021-10-07 15:48:43,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:48:43,078 INFO L470 AbstractCegarLoop]: Abstraction has 19666 states and 60373 transitions. [2021-10-07 15:48:43,078 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) [2021-10-07 15:48:43,078 INFO L276 IsEmpty]: Start isEmpty. Operand 19666 states and 60373 transitions. [2021-10-07 15:48:43,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:48:43,117 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:48:43,117 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, 1] [2021-10-07 15:48:43,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2021-10-07 15:48:43,325 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 [2021-10-07 15:48:43,326 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)] === [2021-10-07 15:48:43,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:48:43,327 INFO L82 PathProgramCache]: Analyzing trace with hash -593658109, now seen corresponding path program 10 times [2021-10-07 15:48:43,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:48:43,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120756299] [2021-10-07 15:48:43,328 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:48:43,328 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:48:43,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:48:43,329 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) [2021-10-07 15:48:43,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-10-07 15:48:44,518 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:48:44,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:48:44,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 15:48:44,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:48:44,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:44,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:48:45,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:45,008 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:48:45,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120756299] [2021-10-07 15:48:45,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2120756299] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:48:45,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:48:45,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-07 15:48:45,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054586915] [2021-10-07 15:48:45,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-07 15:48:45,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:48:45,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-07 15:48:45,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-10-07 15:48:45,010 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) [2021-10-07 15:48:47,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:48:47,528 INFO L93 Difference]: Finished difference Result 31462 states and 94552 transitions. [2021-10-07 15:48:47,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-07 15:48:47,528 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 [2021-10-07 15:48:47,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:48:47,609 INFO L225 Difference]: With dead ends: 31462 [2021-10-07 15:48:47,610 INFO L226 Difference]: Without dead ends: 31444 [2021-10-07 15:48:47,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 735.0ms TimeCoverageRelationStatistics Valid=290, Invalid=1116, Unknown=0, NotChecked=0, Total=1406 [2021-10-07 15:48:47,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31444 states. [2021-10-07 15:48:48,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31444 to 19730. [2021-10-07 15:48:48,028 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) [2021-10-07 15:48:48,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19730 states to 19730 states and 60602 transitions. [2021-10-07 15:48:48,082 INFO L78 Accepts]: Start accepts. Automaton has 19730 states and 60602 transitions. Word has length 54 [2021-10-07 15:48:48,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:48:48,083 INFO L470 AbstractCegarLoop]: Abstraction has 19730 states and 60602 transitions. [2021-10-07 15:48:48,083 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) [2021-10-07 15:48:48,083 INFO L276 IsEmpty]: Start isEmpty. Operand 19730 states and 60602 transitions. [2021-10-07 15:48:48,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:48:48,246 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:48:48,246 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] [2021-10-07 15:48:48,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (54)] Ended with exit code 0 [2021-10-07 15:48:48,446 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 [2021-10-07 15:48:48,447 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)] === [2021-10-07 15:48:48,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:48:48,448 INFO L82 PathProgramCache]: Analyzing trace with hash 213529819, now seen corresponding path program 11 times [2021-10-07 15:48:48,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:48:48,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275857880] [2021-10-07 15:48:48,449 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:48:48,449 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:48:48,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:48:48,450 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) [2021-10-07 15:48:48,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2021-10-07 15:48:49,618 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:48:49,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:48:49,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:48:49,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:48:50,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:50,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:48:50,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:50,917 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:48:50,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275857880] [2021-10-07 15:48:50,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275857880] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:48:50,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:48:50,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:48:50,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788246570] [2021-10-07 15:48:50,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:48:50,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:48:50,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:48:50,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:48:50,918 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) [2021-10-07 15:48:52,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:48:52,833 INFO L93 Difference]: Finished difference Result 20862 states and 63740 transitions. [2021-10-07 15:48:52,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-07 15:48:52,834 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 [2021-10-07 15:48:52,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:48:53,011 INFO L225 Difference]: With dead ends: 20862 [2021-10-07 15:48:53,011 INFO L226 Difference]: Without dead ends: 20768 [2021-10-07 15:48:53,012 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 957.5ms TimeCoverageRelationStatistics Valid=168, Invalid=1092, Unknown=0, NotChecked=0, Total=1260 [2021-10-07 15:48:53,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20768 states. [2021-10-07 15:48:53,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20768 to 19802. [2021-10-07 15:48:53,333 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) [2021-10-07 15:48:53,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19802 states to 19802 states and 60820 transitions. [2021-10-07 15:48:53,383 INFO L78 Accepts]: Start accepts. Automaton has 19802 states and 60820 transitions. Word has length 54 [2021-10-07 15:48:53,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:48:53,383 INFO L470 AbstractCegarLoop]: Abstraction has 19802 states and 60820 transitions. [2021-10-07 15:48:53,384 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) [2021-10-07 15:48:53,384 INFO L276 IsEmpty]: Start isEmpty. Operand 19802 states and 60820 transitions. [2021-10-07 15:48:53,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:48:53,416 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:48:53,416 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] [2021-10-07 15:48:53,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2021-10-07 15:48:53,616 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 [2021-10-07 15:48:53,617 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)] === [2021-10-07 15:48:53,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:48:53,618 INFO L82 PathProgramCache]: Analyzing trace with hash -703548299, now seen corresponding path program 12 times [2021-10-07 15:48:53,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:48:53,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962899798] [2021-10-07 15:48:53,619 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:48:53,620 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:48:53,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:48:53,621 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) [2021-10-07 15:48:53,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-10-07 15:48:54,934 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:48:54,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:48:54,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:48:54,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:48:55,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:55,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:48:56,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:56,339 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:48:56,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962899798] [2021-10-07 15:48:56,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962899798] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:48:56,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:48:56,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:48:56,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910706137] [2021-10-07 15:48:56,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:48:56,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:48:56,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:48:56,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:48:56,342 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) [2021-10-07 15:48:58,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:48:58,488 INFO L93 Difference]: Finished difference Result 21060 states and 64271 transitions. [2021-10-07 15:48:58,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:48:58,489 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 [2021-10-07 15:48:58,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:48:58,541 INFO L225 Difference]: With dead ends: 21060 [2021-10-07 15:48:58,541 INFO L226 Difference]: Without dead ends: 20986 [2021-10-07 15:48:58,542 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1125.6ms TimeCoverageRelationStatistics Valid=189, Invalid=1143, Unknown=0, NotChecked=0, Total=1332 [2021-10-07 15:48:58,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20986 states. [2021-10-07 15:48:58,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20986 to 19804. [2021-10-07 15:48:58,998 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) [2021-10-07 15:48:59,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19804 states to 19804 states and 60823 transitions. [2021-10-07 15:48:59,054 INFO L78 Accepts]: Start accepts. Automaton has 19804 states and 60823 transitions. Word has length 54 [2021-10-07 15:48:59,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:48:59,054 INFO L470 AbstractCegarLoop]: Abstraction has 19804 states and 60823 transitions. [2021-10-07 15:48:59,055 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) [2021-10-07 15:48:59,055 INFO L276 IsEmpty]: Start isEmpty. Operand 19804 states and 60823 transitions. [2021-10-07 15:48:59,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:48:59,089 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:48:59,089 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] [2021-10-07 15:48:59,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2021-10-07 15:48:59,290 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 [2021-10-07 15:48:59,290 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)] === [2021-10-07 15:48:59,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:48:59,291 INFO L82 PathProgramCache]: Analyzing trace with hash -677446263, now seen corresponding path program 13 times [2021-10-07 15:48:59,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:48:59,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444289522] [2021-10-07 15:48:59,293 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:48:59,293 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:48:59,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:48:59,294 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) [2021-10-07 15:48:59,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2021-10-07 15:49:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:49:00,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:49:00,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:49:01,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:01,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:01,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:01,947 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:01,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444289522] [2021-10-07 15:49:01,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444289522] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:49:01,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:49:01,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:49:01,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069660779] [2021-10-07 15:49:01,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:49:01,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:01,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:49:01,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:49:01,949 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) [2021-10-07 15:49:03,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:49:03,891 INFO L93 Difference]: Finished difference Result 20960 states and 64049 transitions. [2021-10-07 15:49:03,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-07 15:49:03,892 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 [2021-10-07 15:49:03,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:49:03,940 INFO L225 Difference]: With dead ends: 20960 [2021-10-07 15:49:03,941 INFO L226 Difference]: Without dead ends: 20876 [2021-10-07 15:49:03,941 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 999.2ms TimeCoverageRelationStatistics Valid=186, Invalid=1146, Unknown=0, NotChecked=0, Total=1332 [2021-10-07 15:49:03,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20876 states. [2021-10-07 15:49:04,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20876 to 19798. [2021-10-07 15:49:04,393 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) [2021-10-07 15:49:04,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19798 states to 19798 states and 60808 transitions. [2021-10-07 15:49:04,446 INFO L78 Accepts]: Start accepts. Automaton has 19798 states and 60808 transitions. Word has length 54 [2021-10-07 15:49:04,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:49:04,446 INFO L470 AbstractCegarLoop]: Abstraction has 19798 states and 60808 transitions. [2021-10-07 15:49:04,446 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) [2021-10-07 15:49:04,446 INFO L276 IsEmpty]: Start isEmpty. Operand 19798 states and 60808 transitions. [2021-10-07 15:49:04,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:49:04,480 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:49:04,480 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] [2021-10-07 15:49:04,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2021-10-07 15:49:04,680 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 [2021-10-07 15:49:04,681 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)] === [2021-10-07 15:49:04,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:49:04,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1282819457, now seen corresponding path program 14 times [2021-10-07 15:49:04,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:49:04,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468552121] [2021-10-07 15:49:04,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:49:04,683 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:49:04,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:49:04,684 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) [2021-10-07 15:49:04,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2021-10-07 15:49:05,973 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:49:05,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:49:05,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:49:05,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:49:06,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:06,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:07,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:07,533 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:07,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468552121] [2021-10-07 15:49:07,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468552121] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:49:07,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:49:07,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-07 15:49:07,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862048579] [2021-10-07 15:49:07,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-07 15:49:07,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:07,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-07 15:49:07,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-10-07 15:49:07,536 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) [2021-10-07 15:49:09,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:49:09,419 INFO L93 Difference]: Finished difference Result 20814 states and 63616 transitions. [2021-10-07 15:49:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-07 15:49:09,420 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 [2021-10-07 15:49:09,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:49:09,472 INFO L225 Difference]: With dead ends: 20814 [2021-10-07 15:49:09,472 INFO L226 Difference]: Without dead ends: 20736 [2021-10-07 15:49:09,472 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1258.1ms TimeCoverageRelationStatistics Valid=173, Invalid=1233, Unknown=0, NotChecked=0, Total=1406 [2021-10-07 15:49:09,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20736 states. [2021-10-07 15:49:09,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20736 to 19800. [2021-10-07 15:49:09,983 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) [2021-10-07 15:49:10,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19800 states to 19800 states and 60811 transitions. [2021-10-07 15:49:10,035 INFO L78 Accepts]: Start accepts. Automaton has 19800 states and 60811 transitions. Word has length 54 [2021-10-07 15:49:10,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:49:10,036 INFO L470 AbstractCegarLoop]: Abstraction has 19800 states and 60811 transitions. [2021-10-07 15:49:10,036 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) [2021-10-07 15:49:10,036 INFO L276 IsEmpty]: Start isEmpty. Operand 19800 states and 60811 transitions. [2021-10-07 15:49:10,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:49:10,075 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:49:10,075 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] [2021-10-07 15:49:10,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (58)] Ended with exit code 0 [2021-10-07 15:49:10,275 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 [2021-10-07 15:49:10,276 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)] === [2021-10-07 15:49:10,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:49:10,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1158524501, now seen corresponding path program 15 times [2021-10-07 15:49:10,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:49:10,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353417978] [2021-10-07 15:49:10,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:49:10,278 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:49:10,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:49:10,280 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) [2021-10-07 15:49:10,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-10-07 15:49:11,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:49:11,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:49:11,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:49:11,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:49:12,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:12,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:12,986 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:12,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353417978] [2021-10-07 15:49:12,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353417978] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:49:12,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:49:12,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-07 15:49:12,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180730581] [2021-10-07 15:49:12,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-07 15:49:12,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:12,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-07 15:49:12,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-07 15:49:12,988 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) [2021-10-07 15:49:15,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:49:15,396 INFO L93 Difference]: Finished difference Result 21058 states and 64262 transitions. [2021-10-07 15:49:15,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-07 15:49:15,396 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 [2021-10-07 15:49:15,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:49:15,447 INFO L225 Difference]: With dead ends: 21058 [2021-10-07 15:49:15,447 INFO L226 Difference]: Without dead ends: 20984 [2021-10-07 15:49:15,447 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1248.6ms TimeCoverageRelationStatistics Valid=221, Invalid=1419, Unknown=0, NotChecked=0, Total=1640 [2021-10-07 15:49:15,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20984 states. [2021-10-07 15:49:15,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20984 to 19806. [2021-10-07 15:49:15,971 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) [2021-10-07 15:49:16,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19806 states to 19806 states and 60824 transitions. [2021-10-07 15:49:16,022 INFO L78 Accepts]: Start accepts. Automaton has 19806 states and 60824 transitions. Word has length 54 [2021-10-07 15:49:16,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:49:16,023 INFO L470 AbstractCegarLoop]: Abstraction has 19806 states and 60824 transitions. [2021-10-07 15:49:16,023 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) [2021-10-07 15:49:16,023 INFO L276 IsEmpty]: Start isEmpty. Operand 19806 states and 60824 transitions. [2021-10-07 15:49:16,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:49:16,055 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:49:16,055 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] [2021-10-07 15:49:16,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2021-10-07 15:49:16,255 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 [2021-10-07 15:49:16,256 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)] === [2021-10-07 15:49:16,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:49:16,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1132422465, now seen corresponding path program 16 times [2021-10-07 15:49:16,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:49:16,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040052511] [2021-10-07 15:49:16,258 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:49:16,258 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:49:16,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:49:16,259 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) [2021-10-07 15:49:16,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2021-10-07 15:49:17,613 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:49:17,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:49:17,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:49:17,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:49:18,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:18,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:19,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:19,021 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:19,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040052511] [2021-10-07 15:49:19,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040052511] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:49:19,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:49:19,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-07 15:49:19,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401800258] [2021-10-07 15:49:19,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-07 15:49:19,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:19,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-07 15:49:19,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-07 15:49:19,026 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) [2021-10-07 15:49:21,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:49:21,371 INFO L93 Difference]: Finished difference Result 20958 states and 64040 transitions. [2021-10-07 15:49:21,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:49:21,372 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 [2021-10-07 15:49:21,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:49:21,419 INFO L225 Difference]: With dead ends: 20958 [2021-10-07 15:49:21,419 INFO L226 Difference]: Without dead ends: 20872 [2021-10-07 15:49:21,419 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1196.5ms TimeCoverageRelationStatistics Valid=216, Invalid=1424, Unknown=0, NotChecked=0, Total=1640 [2021-10-07 15:49:21,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20872 states. [2021-10-07 15:49:21,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20872 to 19798. [2021-10-07 15:49:21,748 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) [2021-10-07 15:49:22,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19798 states to 19798 states and 60804 transitions. [2021-10-07 15:49:22,020 INFO L78 Accepts]: Start accepts. Automaton has 19798 states and 60804 transitions. Word has length 54 [2021-10-07 15:49:22,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:49:22,020 INFO L470 AbstractCegarLoop]: Abstraction has 19798 states and 60804 transitions. [2021-10-07 15:49:22,020 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) [2021-10-07 15:49:22,021 INFO L276 IsEmpty]: Start isEmpty. Operand 19798 states and 60804 transitions. [2021-10-07 15:49:22,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:49:22,063 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:49:22,063 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] [2021-10-07 15:49:22,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2021-10-07 15:49:22,263 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 [2021-10-07 15:49:22,264 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)] === [2021-10-07 15:49:22,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:49:22,265 INFO L82 PathProgramCache]: Analyzing trace with hash -57749451, now seen corresponding path program 17 times [2021-10-07 15:49:22,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:49:22,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006903192] [2021-10-07 15:49:22,266 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:49:22,266 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:49:22,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:49:22,267 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) [2021-10-07 15:49:22,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2021-10-07 15:49:23,609 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:49:23,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:49:23,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:49:23,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:49:24,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:24,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:24,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:24,870 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:24,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006903192] [2021-10-07 15:49:24,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006903192] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:49:24,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:49:24,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:49:24,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515036479] [2021-10-07 15:49:24,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:49:24,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:24,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:49:24,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:49:24,873 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) [2021-10-07 15:49:26,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:49:26,611 INFO L93 Difference]: Finished difference Result 20722 states and 63344 transitions. [2021-10-07 15:49:26,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-07 15:49:26,611 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 [2021-10-07 15:49:26,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:49:26,657 INFO L225 Difference]: With dead ends: 20722 [2021-10-07 15:49:26,657 INFO L226 Difference]: Without dead ends: 20640 [2021-10-07 15:49:26,657 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 864.2ms TimeCoverageRelationStatistics Valid=153, Invalid=969, Unknown=0, NotChecked=0, Total=1122 [2021-10-07 15:49:26,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20640 states. [2021-10-07 15:49:26,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20640 to 19798. [2021-10-07 15:49:26,976 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) [2021-10-07 15:49:27,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19798 states to 19798 states and 60802 transitions. [2021-10-07 15:49:27,030 INFO L78 Accepts]: Start accepts. Automaton has 19798 states and 60802 transitions. Word has length 54 [2021-10-07 15:49:27,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:49:27,030 INFO L470 AbstractCegarLoop]: Abstraction has 19798 states and 60802 transitions. [2021-10-07 15:49:27,030 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) [2021-10-07 15:49:27,030 INFO L276 IsEmpty]: Start isEmpty. Operand 19798 states and 60802 transitions. [2021-10-07 15:49:27,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:49:27,063 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:49:27,063 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] [2021-10-07 15:49:27,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2021-10-07 15:49:27,263 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 [2021-10-07 15:49:27,264 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)] === [2021-10-07 15:49:27,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:49:27,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1167300107, now seen corresponding path program 18 times [2021-10-07 15:49:27,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:49:27,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953301005] [2021-10-07 15:49:27,266 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:49:27,267 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:49:27,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:49:27,267 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) [2021-10-07 15:49:27,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2021-10-07 15:49:28,818 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:49:28,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:49:28,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:49:28,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:49:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:29,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:30,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:30,198 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:30,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953301005] [2021-10-07 15:49:30,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953301005] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:49:30,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:49:30,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-07 15:49:30,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126476362] [2021-10-07 15:49:30,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-07 15:49:30,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:30,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-07 15:49:30,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-07 15:49:30,200 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) [2021-10-07 15:49:32,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:49:32,321 INFO L93 Difference]: Finished difference Result 20950 states and 64016 transitions. [2021-10-07 15:49:32,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:49:32,321 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 [2021-10-07 15:49:32,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:49:32,373 INFO L225 Difference]: With dead ends: 20950 [2021-10-07 15:49:32,373 INFO L226 Difference]: Without dead ends: 20864 [2021-10-07 15:49:32,374 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1218.5ms TimeCoverageRelationStatistics Valid=210, Invalid=1430, Unknown=0, NotChecked=0, Total=1640 [2021-10-07 15:49:32,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20864 states. [2021-10-07 15:49:32,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20864 to 19790. [2021-10-07 15:49:32,823 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) [2021-10-07 15:49:32,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19790 states to 19790 states and 60784 transitions. [2021-10-07 15:49:32,876 INFO L78 Accepts]: Start accepts. Automaton has 19790 states and 60784 transitions. Word has length 54 [2021-10-07 15:49:32,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:49:32,876 INFO L470 AbstractCegarLoop]: Abstraction has 19790 states and 60784 transitions. [2021-10-07 15:49:32,876 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) [2021-10-07 15:49:32,876 INFO L276 IsEmpty]: Start isEmpty. Operand 19790 states and 60784 transitions. [2021-10-07 15:49:32,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:49:32,910 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:49:32,910 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] [2021-10-07 15:49:32,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2021-10-07 15:49:33,110 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 [2021-10-07 15:49:33,111 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)] === [2021-10-07 15:49:33,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:49:33,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1426867435, now seen corresponding path program 19 times [2021-10-07 15:49:33,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:49:33,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24605104] [2021-10-07 15:49:33,113 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:49:33,113 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:49:33,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:49:33,115 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) [2021-10-07 15:49:33,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2021-10-07 15:49:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:49:34,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:49:34,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:49:35,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:35,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:35,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:35,916 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:35,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24605104] [2021-10-07 15:49:35,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [24605104] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:49:35,916 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:49:35,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:49:35,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250962023] [2021-10-07 15:49:35,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:49:35,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:35,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:49:35,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:49:35,918 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) [2021-10-07 15:49:37,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:49:37,852 INFO L93 Difference]: Finished difference Result 20590 states and 62922 transitions. [2021-10-07 15:49:37,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:49:37,853 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 [2021-10-07 15:49:37,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:49:37,903 INFO L225 Difference]: With dead ends: 20590 [2021-10-07 15:49:37,903 INFO L226 Difference]: Without dead ends: 20508 [2021-10-07 15:49:37,904 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 961.6ms TimeCoverageRelationStatistics Valid=195, Invalid=1211, Unknown=0, NotChecked=0, Total=1406 [2021-10-07 15:49:37,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20508 states. [2021-10-07 15:49:38,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20508 to 19790. [2021-10-07 15:49:38,359 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) [2021-10-07 15:49:38,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19790 states to 19790 states and 60782 transitions. [2021-10-07 15:49:38,418 INFO L78 Accepts]: Start accepts. Automaton has 19790 states and 60782 transitions. Word has length 54 [2021-10-07 15:49:38,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:49:38,419 INFO L470 AbstractCegarLoop]: Abstraction has 19790 states and 60782 transitions. [2021-10-07 15:49:38,419 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) [2021-10-07 15:49:38,419 INFO L276 IsEmpty]: Start isEmpty. Operand 19790 states and 60782 transitions. [2021-10-07 15:49:38,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:49:38,456 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:49:38,456 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] [2021-10-07 15:49:38,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2021-10-07 15:49:38,657 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 [2021-10-07 15:49:38,657 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)] === [2021-10-07 15:49:38,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:49:38,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1643050303, now seen corresponding path program 20 times [2021-10-07 15:49:38,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:49:38,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293966967] [2021-10-07 15:49:38,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:49:38,660 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:49:38,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:49:38,662 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) [2021-10-07 15:49:38,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2021-10-07 15:49:40,133 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:49:40,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:49:40,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:49:40,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:49:40,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:40,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:41,665 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:41,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293966967] [2021-10-07 15:49:41,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293966967] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:49:41,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:49:41,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-07 15:49:41,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957606547] [2021-10-07 15:49:41,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-07 15:49:41,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:41,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-07 15:49:41,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-07 15:49:41,667 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) [2021-10-07 15:49:44,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:49:44,268 INFO L93 Difference]: Finished difference Result 20690 states and 63146 transitions. [2021-10-07 15:49:44,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-07 15:49:44,269 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 [2021-10-07 15:49:44,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:49:44,327 INFO L225 Difference]: With dead ends: 20690 [2021-10-07 15:49:44,327 INFO L226 Difference]: Without dead ends: 20612 [2021-10-07 15:49:44,328 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1273.3ms TimeCoverageRelationStatistics Valid=231, Invalid=1575, Unknown=0, NotChecked=0, Total=1806 [2021-10-07 15:49:44,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20612 states. [2021-10-07 15:49:44,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20612 to 19798. [2021-10-07 15:49:44,811 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) [2021-10-07 15:49:44,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19798 states to 19798 states and 60798 transitions. [2021-10-07 15:49:44,867 INFO L78 Accepts]: Start accepts. Automaton has 19798 states and 60798 transitions. Word has length 54 [2021-10-07 15:49:44,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:49:44,867 INFO L470 AbstractCegarLoop]: Abstraction has 19798 states and 60798 transitions. [2021-10-07 15:49:44,868 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) [2021-10-07 15:49:44,868 INFO L276 IsEmpty]: Start isEmpty. Operand 19798 states and 60798 transitions. [2021-10-07 15:49:44,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:49:44,904 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:49:44,904 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, 1] [2021-10-07 15:49:44,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2021-10-07 15:49:45,111 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 [2021-10-07 15:49:45,112 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)] === [2021-10-07 15:49:45,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:49:45,113 INFO L82 PathProgramCache]: Analyzing trace with hash 236675071, now seen corresponding path program 21 times [2021-10-07 15:49:45,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:49:45,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493864973] [2021-10-07 15:49:45,114 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:49:45,114 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:49:45,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:49:45,116 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) [2021-10-07 15:49:45,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2021-10-07 15:49:46,625 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:49:46,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:49:46,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:49:46,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:49:47,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:47,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:48,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:48,062 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:48,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493864973] [2021-10-07 15:49:48,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493864973] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:49:48,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:49:48,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:49:48,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759521815] [2021-10-07 15:49:48,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:49:48,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:48,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:49:48,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:49:48,068 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) [2021-10-07 15:49:50,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:49:50,640 INFO L93 Difference]: Finished difference Result 20594 states and 62930 transitions. [2021-10-07 15:49:50,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-07 15:49:50,641 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 [2021-10-07 15:49:50,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:49:50,701 INFO L225 Difference]: With dead ends: 20594 [2021-10-07 15:49:50,702 INFO L226 Difference]: Without dead ends: 20496 [2021-10-07 15:49:50,702 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1183.0ms TimeCoverageRelationStatistics Valid=216, Invalid=1344, Unknown=0, NotChecked=0, Total=1560 [2021-10-07 15:49:50,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20496 states. [2021-10-07 15:49:51,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20496 to 19784. [2021-10-07 15:49:51,180 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) [2021-10-07 15:49:51,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19784 states to 19784 states and 60765 transitions. [2021-10-07 15:49:51,241 INFO L78 Accepts]: Start accepts. Automaton has 19784 states and 60765 transitions. Word has length 54 [2021-10-07 15:49:51,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:49:51,241 INFO L470 AbstractCegarLoop]: Abstraction has 19784 states and 60765 transitions. [2021-10-07 15:49:51,242 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) [2021-10-07 15:49:51,242 INFO L276 IsEmpty]: Start isEmpty. Operand 19784 states and 60765 transitions. [2021-10-07 15:49:51,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:49:51,283 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:49:51,283 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] [2021-10-07 15:49:51,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2021-10-07 15:49:51,484 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 [2021-10-07 15:49:51,485 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)] === [2021-10-07 15:49:51,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:49:51,486 INFO L82 PathProgramCache]: Analyzing trace with hash -500101875, now seen corresponding path program 22 times [2021-10-07 15:49:51,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:49:51,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828472136] [2021-10-07 15:49:51,487 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:49:51,487 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:49:51,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:49:51,488 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) [2021-10-07 15:49:51,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2021-10-07 15:49:53,016 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:49:53,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:49:53,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:49:53,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:49:53,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:53,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:54,406 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:54,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828472136] [2021-10-07 15:49:54,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1828472136] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:49:54,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:49:54,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:49:54,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37257492] [2021-10-07 15:49:54,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:49:54,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:54,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:49:54,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:49:54,409 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) [2021-10-07 15:49:56,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:49:56,051 INFO L93 Difference]: Finished difference Result 20552 states and 62827 transitions. [2021-10-07 15:49:56,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-07 15:49:56,052 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 [2021-10-07 15:49:56,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:49:56,099 INFO L225 Difference]: With dead ends: 20552 [2021-10-07 15:49:56,100 INFO L226 Difference]: Without dead ends: 20460 [2021-10-07 15:49:56,100 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 813.0ms TimeCoverageRelationStatistics Valid=121, Invalid=871, Unknown=0, NotChecked=0, Total=992 [2021-10-07 15:49:56,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20460 states. [2021-10-07 15:49:56,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20460 to 19774. [2021-10-07 15:49:56,549 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) [2021-10-07 15:49:56,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19774 states to 19774 states and 60742 transitions. [2021-10-07 15:49:56,601 INFO L78 Accepts]: Start accepts. Automaton has 19774 states and 60742 transitions. Word has length 54 [2021-10-07 15:49:56,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:49:56,601 INFO L470 AbstractCegarLoop]: Abstraction has 19774 states and 60742 transitions. [2021-10-07 15:49:56,601 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) [2021-10-07 15:49:56,602 INFO L276 IsEmpty]: Start isEmpty. Operand 19774 states and 60742 transitions. [2021-10-07 15:49:56,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:49:56,635 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:49:56,635 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] [2021-10-07 15:49:56,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (66)] Forceful destruction successful, exit code 0 [2021-10-07 15:49:56,835 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 [2021-10-07 15:49:56,836 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)] === [2021-10-07 15:49:56,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:49:56,837 INFO L82 PathProgramCache]: Analyzing trace with hash -626243347, now seen corresponding path program 23 times [2021-10-07 15:49:56,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:49:56,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479333545] [2021-10-07 15:49:56,838 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:49:56,839 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:49:56,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:49:56,840 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) [2021-10-07 15:49:56,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2021-10-07 15:49:58,332 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:49:58,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:49:58,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:49:58,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:49:58,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:58,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:59,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:59,810 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:59,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479333545] [2021-10-07 15:49:59,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479333545] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:49:59,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:49:59,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:49:59,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224781177] [2021-10-07 15:49:59,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:49:59,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:59,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:49:59,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:49:59,812 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) [2021-10-07 15:50:01,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:50:01,798 INFO L93 Difference]: Finished difference Result 20586 states and 63010 transitions. [2021-10-07 15:50:01,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-07 15:50:01,799 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 [2021-10-07 15:50:01,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:50:01,853 INFO L225 Difference]: With dead ends: 20586 [2021-10-07 15:50:01,853 INFO L226 Difference]: Without dead ends: 20492 [2021-10-07 15:50:01,853 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 998.0ms TimeCoverageRelationStatistics Valid=174, Invalid=1158, Unknown=0, NotChecked=0, Total=1332 [2021-10-07 15:50:01,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20492 states. [2021-10-07 15:50:02,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20492 to 19734. [2021-10-07 15:50:02,407 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) [2021-10-07 15:50:02,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19734 states to 19734 states and 60626 transitions. [2021-10-07 15:50:02,468 INFO L78 Accepts]: Start accepts. Automaton has 19734 states and 60626 transitions. Word has length 54 [2021-10-07 15:50:02,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:50:02,468 INFO L470 AbstractCegarLoop]: Abstraction has 19734 states and 60626 transitions. [2021-10-07 15:50:02,468 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) [2021-10-07 15:50:02,469 INFO L276 IsEmpty]: Start isEmpty. Operand 19734 states and 60626 transitions. [2021-10-07 15:50:02,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:50:02,520 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:50:02,520 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] [2021-10-07 15:50:02,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (67)] Ended with exit code 0 [2021-10-07 15:50:02,733 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 [2021-10-07 15:50:02,734 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)] === [2021-10-07 15:50:02,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:50:02,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1543321465, now seen corresponding path program 24 times [2021-10-07 15:50:02,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:50:02,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462205870] [2021-10-07 15:50:02,736 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:50:02,736 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:50:02,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:50:02,737 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) [2021-10-07 15:50:02,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2021-10-07 15:50:04,318 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:50:04,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:50:04,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:50:04,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:50:04,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:04,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:50:05,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:05,637 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:50:05,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462205870] [2021-10-07 15:50:05,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462205870] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:50:05,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:50:05,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:50:05,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72487634] [2021-10-07 15:50:05,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:50:05,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:50:05,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:50:05,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:50:05,639 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) [2021-10-07 15:50:08,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:50:08,121 INFO L93 Difference]: Finished difference Result 20858 states and 63736 transitions. [2021-10-07 15:50:08,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-07 15:50:08,122 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 [2021-10-07 15:50:08,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:50:08,170 INFO L225 Difference]: With dead ends: 20858 [2021-10-07 15:50:08,170 INFO L226 Difference]: Without dead ends: 20784 [2021-10-07 15:50:08,170 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1212.1ms TimeCoverageRelationStatistics Valid=229, Invalid=1411, Unknown=0, NotChecked=0, Total=1640 [2021-10-07 15:50:08,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20784 states. [2021-10-07 15:50:08,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20784 to 19736. [2021-10-07 15:50:08,731 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) [2021-10-07 15:50:08,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19736 states to 19736 states and 60629 transitions. [2021-10-07 15:50:08,795 INFO L78 Accepts]: Start accepts. Automaton has 19736 states and 60629 transitions. Word has length 54 [2021-10-07 15:50:08,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:50:08,796 INFO L470 AbstractCegarLoop]: Abstraction has 19736 states and 60629 transitions. [2021-10-07 15:50:08,796 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) [2021-10-07 15:50:08,796 INFO L276 IsEmpty]: Start isEmpty. Operand 19736 states and 60629 transitions. [2021-10-07 15:50:08,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:50:08,829 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:50:08,830 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] [2021-10-07 15:50:08,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2021-10-07 15:50:09,030 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 [2021-10-07 15:50:09,031 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)] === [2021-10-07 15:50:09,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:50:09,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1517219429, now seen corresponding path program 25 times [2021-10-07 15:50:09,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:50:09,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582909952] [2021-10-07 15:50:09,032 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:50:09,033 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:50:09,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:50:09,034 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) [2021-10-07 15:50:09,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2021-10-07 15:50:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:50:10,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:50:10,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:50:10,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:10,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:50:11,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:11,919 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:50:11,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582909952] [2021-10-07 15:50:11,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582909952] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:50:11,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:50:11,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:50:11,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592545773] [2021-10-07 15:50:11,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:50:11,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:50:11,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:50:11,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:50:11,922 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) [2021-10-07 15:50:14,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:50:14,506 INFO L93 Difference]: Finished difference Result 20762 states and 63522 transitions. [2021-10-07 15:50:14,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-07 15:50:14,507 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 [2021-10-07 15:50:14,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:50:14,555 INFO L225 Difference]: With dead ends: 20762 [2021-10-07 15:50:14,555 INFO L226 Difference]: Without dead ends: 20678 [2021-10-07 15:50:14,556 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1243.0ms TimeCoverageRelationStatistics Valid=236, Invalid=1486, Unknown=0, NotChecked=0, Total=1722 [2021-10-07 15:50:14,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20678 states. [2021-10-07 15:50:14,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20678 to 19722. [2021-10-07 15:50:14,888 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) [2021-10-07 15:50:15,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19722 states to 19722 states and 60588 transitions. [2021-10-07 15:50:15,156 INFO L78 Accepts]: Start accepts. Automaton has 19722 states and 60588 transitions. Word has length 54 [2021-10-07 15:50:15,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:50:15,156 INFO L470 AbstractCegarLoop]: Abstraction has 19722 states and 60588 transitions. [2021-10-07 15:50:15,157 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) [2021-10-07 15:50:15,157 INFO L276 IsEmpty]: Start isEmpty. Operand 19722 states and 60588 transitions. [2021-10-07 15:50:15,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:50:15,199 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:50:15,199 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] [2021-10-07 15:50:15,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (69)] Ended with exit code 0 [2021-10-07 15:50:15,407 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 [2021-10-07 15:50:15,408 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)] === [2021-10-07 15:50:15,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:50:15,409 INFO L82 PathProgramCache]: Analyzing trace with hash 443046291, now seen corresponding path program 26 times [2021-10-07 15:50:15,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:50:15,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729395185] [2021-10-07 15:50:15,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:50:15,411 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:50:15,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:50:15,412 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) [2021-10-07 15:50:15,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2021-10-07 15:50:17,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:50:17,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:50:17,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:50:17,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:50:17,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:17,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:50:18,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:18,412 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:50:18,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729395185] [2021-10-07 15:50:18,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729395185] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:50:18,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:50:18,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-07 15:50:18,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491277880] [2021-10-07 15:50:18,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-07 15:50:18,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:50:18,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-07 15:50:18,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-10-07 15:50:18,415 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) [2021-10-07 15:50:20,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:50:20,667 INFO L93 Difference]: Finished difference Result 20580 states and 63007 transitions. [2021-10-07 15:50:20,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:50:20,668 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 [2021-10-07 15:50:20,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:50:20,718 INFO L225 Difference]: With dead ends: 20580 [2021-10-07 15:50:20,718 INFO L226 Difference]: Without dead ends: 20502 [2021-10-07 15:50:20,718 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1118.6ms TimeCoverageRelationStatistics Valid=179, Invalid=1303, Unknown=0, NotChecked=0, Total=1482 [2021-10-07 15:50:20,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20502 states. [2021-10-07 15:50:21,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20502 to 19724. [2021-10-07 15:50:21,044 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) [2021-10-07 15:50:21,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19724 states to 19724 states and 60591 transitions. [2021-10-07 15:50:21,096 INFO L78 Accepts]: Start accepts. Automaton has 19724 states and 60591 transitions. Word has length 54 [2021-10-07 15:50:21,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:50:21,096 INFO L470 AbstractCegarLoop]: Abstraction has 19724 states and 60591 transitions. [2021-10-07 15:50:21,096 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) [2021-10-07 15:50:21,096 INFO L276 IsEmpty]: Start isEmpty. Operand 19724 states and 60591 transitions. [2021-10-07 15:50:21,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:50:21,129 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:50:21,129 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] [2021-10-07 15:50:21,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (70)] Forceful destruction successful, exit code 0 [2021-10-07 15:50:21,329 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 [2021-10-07 15:50:21,330 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)] === [2021-10-07 15:50:21,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:50:21,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1998297667, now seen corresponding path program 27 times [2021-10-07 15:50:21,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:50:21,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423366345] [2021-10-07 15:50:21,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:50:21,333 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:50:21,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:50:21,334 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) [2021-10-07 15:50:21,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2021-10-07 15:50:23,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:50:23,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:50:23,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:50:23,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:50:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:23,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:50:24,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:24,553 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:50:24,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423366345] [2021-10-07 15:50:24,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423366345] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:50:24,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:50:24,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-07 15:50:24,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616848332] [2021-10-07 15:50:24,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-07 15:50:24,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:50:24,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-07 15:50:24,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-07 15:50:24,555 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) [2021-10-07 15:50:27,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:50:27,356 INFO L93 Difference]: Finished difference Result 20696 states and 63267 transitions. [2021-10-07 15:50:27,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-07 15:50:27,356 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 [2021-10-07 15:50:27,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:50:27,413 INFO L225 Difference]: With dead ends: 20696 [2021-10-07 15:50:27,413 INFO L226 Difference]: Without dead ends: 20622 [2021-10-07 15:50:27,414 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1369.6ms TimeCoverageRelationStatistics Valid=238, Invalid=1568, Unknown=0, NotChecked=0, Total=1806 [2021-10-07 15:50:27,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20622 states. [2021-10-07 15:50:27,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20622 to 19726. [2021-10-07 15:50:27,735 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) [2021-10-07 15:50:27,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19726 states to 19726 states and 60594 transitions. [2021-10-07 15:50:27,787 INFO L78 Accepts]: Start accepts. Automaton has 19726 states and 60594 transitions. Word has length 54 [2021-10-07 15:50:27,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:50:27,787 INFO L470 AbstractCegarLoop]: Abstraction has 19726 states and 60594 transitions. [2021-10-07 15:50:27,787 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) [2021-10-07 15:50:27,787 INFO L276 IsEmpty]: Start isEmpty. Operand 19726 states and 60594 transitions. [2021-10-07 15:50:27,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:50:27,819 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:50:27,819 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] [2021-10-07 15:50:27,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2021-10-07 15:50:28,020 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 [2021-10-07 15:50:28,020 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)] === [2021-10-07 15:50:28,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:50:28,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1972195631, now seen corresponding path program 28 times [2021-10-07 15:50:28,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:50:28,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685860701] [2021-10-07 15:50:28,022 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:50:28,022 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:50:28,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:50:28,023 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) [2021-10-07 15:50:28,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2021-10-07 15:50:29,737 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:50:29,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:50:29,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:50:29,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:50:30,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:30,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:50:31,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:31,160 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:50:31,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685860701] [2021-10-07 15:50:31,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685860701] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:50:31,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:50:31,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-07 15:50:31,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43327127] [2021-10-07 15:50:31,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-07 15:50:31,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:50:31,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-07 15:50:31,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-07 15:50:31,162 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) [2021-10-07 15:50:34,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:50:34,068 INFO L93 Difference]: Finished difference Result 20604 states and 63061 transitions. [2021-10-07 15:50:34,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-07 15:50:34,069 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 [2021-10-07 15:50:34,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:50:34,134 INFO L225 Difference]: With dead ends: 20604 [2021-10-07 15:50:34,135 INFO L226 Difference]: Without dead ends: 20514 [2021-10-07 15:50:34,135 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1380.9ms TimeCoverageRelationStatistics Valid=245, Invalid=1647, Unknown=0, NotChecked=0, Total=1892 [2021-10-07 15:50:34,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20514 states. [2021-10-07 15:50:34,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20514 to 19690. [2021-10-07 15:50:34,540 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) [2021-10-07 15:50:34,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19690 states to 19690 states and 60490 transitions. [2021-10-07 15:50:34,597 INFO L78 Accepts]: Start accepts. Automaton has 19690 states and 60490 transitions. Word has length 54 [2021-10-07 15:50:34,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:50:34,597 INFO L470 AbstractCegarLoop]: Abstraction has 19690 states and 60490 transitions. [2021-10-07 15:50:34,597 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) [2021-10-07 15:50:34,597 INFO L276 IsEmpty]: Start isEmpty. Operand 19690 states and 60490 transitions. [2021-10-07 15:50:34,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:50:34,632 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:50:34,632 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] [2021-10-07 15:50:34,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (72)] Forceful destruction successful, exit code 0 [2021-10-07 15:50:34,838 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 [2021-10-07 15:50:34,839 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)] === [2021-10-07 15:50:34,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:50:34,839 INFO L82 PathProgramCache]: Analyzing trace with hash -2050104653, now seen corresponding path program 29 times [2021-10-07 15:50:34,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:50:34,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522635115] [2021-10-07 15:50:34,841 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:50:34,841 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:50:34,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:50:34,842 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) [2021-10-07 15:50:34,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2021-10-07 15:50:36,712 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:50:36,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:50:36,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:50:36,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:50:37,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:37,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:50:37,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:37,853 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:50:37,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522635115] [2021-10-07 15:50:37,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522635115] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:50:37,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:50:37,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:50:37,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336530309] [2021-10-07 15:50:37,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:50:37,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:50:37,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:50:37,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:50:37,856 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) [2021-10-07 15:50:41,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:50:41,091 INFO L93 Difference]: Finished difference Result 23050 states and 69595 transitions. [2021-10-07 15:50:41,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-07 15:50:41,092 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 [2021-10-07 15:50:41,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:50:41,163 INFO L225 Difference]: With dead ends: 23050 [2021-10-07 15:50:41,163 INFO L226 Difference]: Without dead ends: 22404 [2021-10-07 15:50:41,164 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1409.4ms TimeCoverageRelationStatistics Valid=270, Invalid=1800, Unknown=0, NotChecked=0, Total=2070 [2021-10-07 15:50:41,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22404 states. [2021-10-07 15:50:41,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22404 to 19626. [2021-10-07 15:50:41,584 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) [2021-10-07 15:50:41,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19626 states to 19626 states and 60034 transitions. [2021-10-07 15:50:41,639 INFO L78 Accepts]: Start accepts. Automaton has 19626 states and 60034 transitions. Word has length 54 [2021-10-07 15:50:41,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:50:41,639 INFO L470 AbstractCegarLoop]: Abstraction has 19626 states and 60034 transitions. [2021-10-07 15:50:41,639 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) [2021-10-07 15:50:41,640 INFO L276 IsEmpty]: Start isEmpty. Operand 19626 states and 60034 transitions. [2021-10-07 15:50:41,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:50:41,672 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:50:41,673 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] [2021-10-07 15:50:41,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2021-10-07 15:50:41,879 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 [2021-10-07 15:50:41,880 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)] === [2021-10-07 15:50:41,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:50:41,881 INFO L82 PathProgramCache]: Analyzing trace with hash -804240873, now seen corresponding path program 30 times [2021-10-07 15:50:41,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:50:41,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093265470] [2021-10-07 15:50:41,882 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:50:41,882 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:50:41,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:50:41,883 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) [2021-10-07 15:50:41,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2021-10-07 15:50:43,751 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:50:43,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:50:43,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:50:43,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:50:44,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:44,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:50:44,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:44,878 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:50:44,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093265470] [2021-10-07 15:50:44,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1093265470] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:50:44,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:50:44,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:50:44,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210652307] [2021-10-07 15:50:44,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:50:44,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:50:44,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:50:44,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:50:44,880 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) [2021-10-07 15:50:46,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:50:46,693 INFO L93 Difference]: Finished difference Result 21132 states and 64221 transitions. [2021-10-07 15:50:46,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-07 15:50:46,694 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 [2021-10-07 15:50:46,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:50:46,741 INFO L225 Difference]: With dead ends: 21132 [2021-10-07 15:50:46,742 INFO L226 Difference]: Without dead ends: 20494 [2021-10-07 15:50:46,742 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 860.1ms TimeCoverageRelationStatistics Valid=146, Invalid=976, Unknown=0, NotChecked=0, Total=1122 [2021-10-07 15:50:46,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20494 states. [2021-10-07 15:50:47,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20494 to 19186. [2021-10-07 15:50:47,177 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) [2021-10-07 15:50:47,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19186 states to 19186 states and 58718 transitions. [2021-10-07 15:50:47,228 INFO L78 Accepts]: Start accepts. Automaton has 19186 states and 58718 transitions. Word has length 54 [2021-10-07 15:50:47,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:50:47,229 INFO L470 AbstractCegarLoop]: Abstraction has 19186 states and 58718 transitions. [2021-10-07 15:50:47,229 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) [2021-10-07 15:50:47,229 INFO L276 IsEmpty]: Start isEmpty. Operand 19186 states and 58718 transitions. [2021-10-07 15:50:47,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:50:47,261 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:50:47,261 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] [2021-10-07 15:50:47,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (74)] Forceful destruction successful, exit code 0 [2021-10-07 15:50:47,461 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 [2021-10-07 15:50:47,462 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)] === [2021-10-07 15:50:47,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:50:47,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1236413207, now seen corresponding path program 31 times [2021-10-07 15:50:47,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:50:47,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533939183] [2021-10-07 15:50:47,464 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:50:47,464 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:50:47,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:50:47,465 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) [2021-10-07 15:50:47,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2021-10-07 15:50:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:50:49,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:50:49,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:50:49,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:49,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:50:50,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:50,523 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:50:50,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533939183] [2021-10-07 15:50:50,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533939183] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:50:50,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:50:50,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:50:50,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255321783] [2021-10-07 15:50:50,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:50:50,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:50:50,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:50:50,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:50:50,525 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) [2021-10-07 15:50:53,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:50:53,384 INFO L93 Difference]: Finished difference Result 20632 states and 62869 transitions. [2021-10-07 15:50:53,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-07 15:50:53,385 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 [2021-10-07 15:50:53,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:50:53,435 INFO L225 Difference]: With dead ends: 20632 [2021-10-07 15:50:53,435 INFO L226 Difference]: Without dead ends: 20336 [2021-10-07 15:50:53,436 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1414.2ms TimeCoverageRelationStatistics Valid=257, Invalid=1723, Unknown=0, NotChecked=0, Total=1980 [2021-10-07 15:50:53,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20336 states. [2021-10-07 15:50:53,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20336 to 18856. [2021-10-07 15:50:53,878 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) [2021-10-07 15:50:53,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18856 states to 18856 states and 57821 transitions. [2021-10-07 15:50:53,929 INFO L78 Accepts]: Start accepts. Automaton has 18856 states and 57821 transitions. Word has length 54 [2021-10-07 15:50:53,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:50:53,929 INFO L470 AbstractCegarLoop]: Abstraction has 18856 states and 57821 transitions. [2021-10-07 15:50:53,929 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) [2021-10-07 15:50:53,929 INFO L276 IsEmpty]: Start isEmpty. Operand 18856 states and 57821 transitions. [2021-10-07 15:50:53,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:50:53,960 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:50:53,961 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] [2021-10-07 15:50:53,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (75)] Forceful destruction successful, exit code 0 [2021-10-07 15:50:54,161 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 [2021-10-07 15:50:54,162 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)] === [2021-10-07 15:50:54,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:50:54,162 INFO L82 PathProgramCache]: Analyzing trace with hash -380192019, now seen corresponding path program 32 times [2021-10-07 15:50:54,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:50:54,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596714403] [2021-10-07 15:50:54,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:50:54,164 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:50:54,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:50:54,166 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) [2021-10-07 15:50:54,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2021-10-07 15:50:55,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:50:55,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:50:55,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:50:55,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:50:56,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:56,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:50:57,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:50:57,361 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:50:57,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596714403] [2021-10-07 15:50:57,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596714403] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:50:57,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:50:57,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:50:57,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415513190] [2021-10-07 15:50:57,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:50:57,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:50:57,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:50:57,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:50:57,363 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) [2021-10-07 15:51:01,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:51:01,069 INFO L93 Difference]: Finished difference Result 20772 states and 63167 transitions. [2021-10-07 15:51:01,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-07 15:51:01,070 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 [2021-10-07 15:51:01,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:51:01,117 INFO L225 Difference]: With dead ends: 20772 [2021-10-07 15:51:01,117 INFO L226 Difference]: Without dead ends: 20502 [2021-10-07 15:51:01,118 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1900.2ms TimeCoverageRelationStatistics Valid=315, Invalid=2337, Unknown=0, NotChecked=0, Total=2652 [2021-10-07 15:51:01,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20502 states. [2021-10-07 15:51:01,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20502 to 18856. [2021-10-07 15:51:01,565 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) [2021-10-07 15:51:01,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18856 states to 18856 states and 57805 transitions. [2021-10-07 15:51:01,616 INFO L78 Accepts]: Start accepts. Automaton has 18856 states and 57805 transitions. Word has length 54 [2021-10-07 15:51:01,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:51:01,617 INFO L470 AbstractCegarLoop]: Abstraction has 18856 states and 57805 transitions. [2021-10-07 15:51:01,617 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) [2021-10-07 15:51:01,617 INFO L276 IsEmpty]: Start isEmpty. Operand 18856 states and 57805 transitions. [2021-10-07 15:51:01,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:51:01,649 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:51:01,649 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] [2021-10-07 15:51:01,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (76)] Forceful destruction successful, exit code 0 [2021-10-07 15:51:01,849 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 [2021-10-07 15:51:01,850 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)] === [2021-10-07 15:51:01,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:51:01,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1355739691, now seen corresponding path program 33 times [2021-10-07 15:51:01,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:51:01,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031451460] [2021-10-07 15:51:01,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:51:01,852 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:51:01,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:51:01,855 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) [2021-10-07 15:51:01,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2021-10-07 15:51:03,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:51:03,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:51:03,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:51:03,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:51:04,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:51:04,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:51:04,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:51:04,996 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:51:04,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031451460] [2021-10-07 15:51:04,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031451460] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:51:04,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:51:04,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:51:04,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839732500] [2021-10-07 15:51:04,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:51:04,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:51:04,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:51:04,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:51:04,998 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) [2021-10-07 15:51:08,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:51:08,608 INFO L93 Difference]: Finished difference Result 20854 states and 63538 transitions. [2021-10-07 15:51:08,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-07 15:51:08,609 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 [2021-10-07 15:51:08,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:51:08,660 INFO L225 Difference]: With dead ends: 20854 [2021-10-07 15:51:08,660 INFO L226 Difference]: Without dead ends: 20590 [2021-10-07 15:51:08,661 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1729.9ms TimeCoverageRelationStatistics Valid=321, Invalid=2129, Unknown=0, NotChecked=0, Total=2450 [2021-10-07 15:51:08,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20590 states. [2021-10-07 15:51:09,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20590 to 18810. [2021-10-07 15:51:09,111 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) [2021-10-07 15:51:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18810 states to 18810 states and 57688 transitions. [2021-10-07 15:51:09,161 INFO L78 Accepts]: Start accepts. Automaton has 18810 states and 57688 transitions. Word has length 54 [2021-10-07 15:51:09,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:51:09,161 INFO L470 AbstractCegarLoop]: Abstraction has 18810 states and 57688 transitions. [2021-10-07 15:51:09,161 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) [2021-10-07 15:51:09,161 INFO L276 IsEmpty]: Start isEmpty. Operand 18810 states and 57688 transitions. [2021-10-07 15:51:09,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:51:09,193 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:51:09,193 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] [2021-10-07 15:51:09,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2021-10-07 15:51:09,394 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 [2021-10-07 15:51:09,394 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)] === [2021-10-07 15:51:09,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:51:09,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1700417223, now seen corresponding path program 34 times [2021-10-07 15:51:09,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:51:09,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893981098] [2021-10-07 15:51:09,396 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:51:09,397 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:51:09,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:51:09,398 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) [2021-10-07 15:51:09,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2021-10-07 15:51:11,278 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:51:11,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:51:11,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:51:11,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:51:11,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:51:11,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:51:12,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:51:12,542 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:51:12,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893981098] [2021-10-07 15:51:12,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893981098] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:51:12,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:51:12,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:51:12,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230830242] [2021-10-07 15:51:12,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:51:12,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:51:12,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:51:12,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:51:12,544 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) [2021-10-07 15:51:14,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:51:14,849 INFO L93 Difference]: Finished difference Result 20136 states and 61405 transitions. [2021-10-07 15:51:14,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-07 15:51:14,850 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 [2021-10-07 15:51:14,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:51:14,897 INFO L225 Difference]: With dead ends: 20136 [2021-10-07 15:51:14,897 INFO L226 Difference]: Without dead ends: 19796 [2021-10-07 15:51:14,897 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1251.9ms TimeCoverageRelationStatistics Valid=171, Invalid=1235, Unknown=0, NotChecked=0, Total=1406 [2021-10-07 15:51:14,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19796 states. [2021-10-07 15:51:15,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19796 to 18540. [2021-10-07 15:51:15,346 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) [2021-10-07 15:51:15,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18540 states to 18540 states and 56971 transitions. [2021-10-07 15:51:15,394 INFO L78 Accepts]: Start accepts. Automaton has 18540 states and 56971 transitions. Word has length 54 [2021-10-07 15:51:15,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:51:15,395 INFO L470 AbstractCegarLoop]: Abstraction has 18540 states and 56971 transitions. [2021-10-07 15:51:15,395 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) [2021-10-07 15:51:15,395 INFO L276 IsEmpty]: Start isEmpty. Operand 18540 states and 56971 transitions. [2021-10-07 15:51:15,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:51:15,425 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:51:15,426 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] [2021-10-07 15:51:15,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (78)] Forceful destruction successful, exit code 0 [2021-10-07 15:51:15,626 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 [2021-10-07 15:51:15,627 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)] === [2021-10-07 15:51:15,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:51:15,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1074863171, now seen corresponding path program 35 times [2021-10-07 15:51:15,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:51:15,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518836005] [2021-10-07 15:51:15,629 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:51:15,629 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:51:15,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:51:15,631 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) [2021-10-07 15:51:15,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2021-10-07 15:51:17,501 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:51:17,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:51:17,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 15:51:17,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:51:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:51:17,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:51:17,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:51:17,938 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:51:17,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518836005] [2021-10-07 15:51:17,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518836005] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:51:17,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:51:17,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-07 15:51:17,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420910569] [2021-10-07 15:51:17,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-07 15:51:17,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:51:17,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-07 15:51:17,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-10-07 15:51:17,940 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) [2021-10-07 15:51:19,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:51:19,191 INFO L93 Difference]: Finished difference Result 23164 states and 70221 transitions. [2021-10-07 15:51:19,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-07 15:51:19,191 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 [2021-10-07 15:51:19,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:51:19,243 INFO L225 Difference]: With dead ends: 23164 [2021-10-07 15:51:19,244 INFO L226 Difference]: Without dead ends: 22880 [2021-10-07 15:51:19,244 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 302.0ms TimeCoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2021-10-07 15:51:19,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22880 states. [2021-10-07 15:51:19,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22880 to 18312. [2021-10-07 15:51:19,590 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) [2021-10-07 15:51:19,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18312 states to 18312 states and 56353 transitions. [2021-10-07 15:51:19,874 INFO L78 Accepts]: Start accepts. Automaton has 18312 states and 56353 transitions. Word has length 54 [2021-10-07 15:51:19,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:51:19,874 INFO L470 AbstractCegarLoop]: Abstraction has 18312 states and 56353 transitions. [2021-10-07 15:51:19,874 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) [2021-10-07 15:51:19,875 INFO L276 IsEmpty]: Start isEmpty. Operand 18312 states and 56353 transitions. [2021-10-07 15:51:19,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:51:19,907 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:51:19,907 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] [2021-10-07 15:51:19,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (79)] Forceful destruction successful, exit code 0 [2021-10-07 15:51:20,107 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 [2021-10-07 15:51:20,108 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)] === [2021-10-07 15:51:20,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:51:20,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1050481077, now seen corresponding path program 1 times [2021-10-07 15:51:20,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:51:20,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917214119] [2021-10-07 15:51:20,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:51:20,110 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:51:20,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:51:20,111 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) [2021-10-07 15:51:20,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2021-10-07 15:51:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:51:22,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:51:22,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:51:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:51:22,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:51:23,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:51:23,511 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:51:23,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917214119] [2021-10-07 15:51:23,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917214119] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:51:23,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:51:23,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:51:23,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471770976] [2021-10-07 15:51:23,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:51:23,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:51:23,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:51:23,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:51:23,513 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) [2021-10-07 15:51:40,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:51:40,412 INFO L93 Difference]: Finished difference Result 24448 states and 73394 transitions. [2021-10-07 15:51:40,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-10-07 15:51:40,413 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 [2021-10-07 15:51:40,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:51:40,473 INFO L225 Difference]: With dead ends: 24448 [2021-10-07 15:51:40,473 INFO L226 Difference]: Without dead ends: 23272 [2021-10-07 15:51:40,474 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1623 ImplicationChecksByTransitivity, 11917.3ms TimeCoverageRelationStatistics Valid=719, Invalid=5443, Unknown=0, NotChecked=0, Total=6162 [2021-10-07 15:51:40,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23272 states. [2021-10-07 15:51:40,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23272 to 19770. [2021-10-07 15:51:40,914 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) [2021-10-07 15:51:40,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19770 states to 19770 states and 60539 transitions. [2021-10-07 15:51:40,967 INFO L78 Accepts]: Start accepts. Automaton has 19770 states and 60539 transitions. Word has length 54 [2021-10-07 15:51:40,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:51:40,967 INFO L470 AbstractCegarLoop]: Abstraction has 19770 states and 60539 transitions. [2021-10-07 15:51:40,967 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) [2021-10-07 15:51:40,967 INFO L276 IsEmpty]: Start isEmpty. Operand 19770 states and 60539 transitions. [2021-10-07 15:51:41,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:51:41,001 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:51:41,002 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] [2021-10-07 15:51:41,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (80)] Forceful destruction successful, exit code 0 [2021-10-07 15:51:41,202 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 [2021-10-07 15:51:41,202 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)] === [2021-10-07 15:51:41,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:51:41,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1113463825, now seen corresponding path program 2 times [2021-10-07 15:51:41,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:51:41,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37562851] [2021-10-07 15:51:41,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:51:41,205 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:51:41,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:51:41,206 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) [2021-10-07 15:51:41,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2021-10-07 15:51:43,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:51:43,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:51:43,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:51:43,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:51:43,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:51:43,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:51:45,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:51:45,007 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:51:45,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37562851] [2021-10-07 15:51:45,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37562851] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:51:45,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:51:45,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:51:45,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912480422] [2021-10-07 15:51:45,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:51:45,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:51:45,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:51:45,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:51:45,009 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) [2021-10-07 15:52:02,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:52:02,809 INFO L93 Difference]: Finished difference Result 25400 states and 75774 transitions. [2021-10-07 15:52:02,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-10-07 15:52:02,810 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 [2021-10-07 15:52:02,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:52:02,874 INFO L225 Difference]: With dead ends: 25400 [2021-10-07 15:52:02,874 INFO L226 Difference]: Without dead ends: 24812 [2021-10-07 15:52:02,875 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1439 ImplicationChecksByTransitivity, 12540.4ms TimeCoverageRelationStatistics Valid=697, Invalid=5155, Unknown=0, NotChecked=0, Total=5852 [2021-10-07 15:52:02,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24812 states. [2021-10-07 15:52:03,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24812 to 19560. [2021-10-07 15:52:03,308 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) [2021-10-07 15:52:03,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19560 states to 19560 states and 59842 transitions. [2021-10-07 15:52:03,361 INFO L78 Accepts]: Start accepts. Automaton has 19560 states and 59842 transitions. Word has length 54 [2021-10-07 15:52:03,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:52:03,361 INFO L470 AbstractCegarLoop]: Abstraction has 19560 states and 59842 transitions. [2021-10-07 15:52:03,361 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) [2021-10-07 15:52:03,361 INFO L276 IsEmpty]: Start isEmpty. Operand 19560 states and 59842 transitions. [2021-10-07 15:52:03,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:52:03,395 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:52:03,395 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] [2021-10-07 15:52:03,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (81)] Forceful destruction successful, exit code 0 [2021-10-07 15:52:03,596 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 [2021-10-07 15:52:03,596 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)] === [2021-10-07 15:52:03,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:52:03,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1144999149, now seen corresponding path program 3 times [2021-10-07 15:52:03,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:52:03,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499281504] [2021-10-07 15:52:03,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:52:03,598 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:52:03,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:52:03,600 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) [2021-10-07 15:52:03,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2021-10-07 15:52:05,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:52:05,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:52:05,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:52:05,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:52:06,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:06,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:52:07,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:07,332 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:52:07,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499281504] [2021-10-07 15:52:07,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499281504] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:52:07,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:52:07,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:52:07,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795510069] [2021-10-07 15:52:07,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:52:07,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:52:07,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:52:07,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:52:07,335 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) [2021-10-07 15:52:13,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:52:13,003 INFO L93 Difference]: Finished difference Result 23190 states and 69703 transitions. [2021-10-07 15:52:13,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-07 15:52:13,004 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 [2021-10-07 15:52:13,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:52:13,061 INFO L225 Difference]: With dead ends: 23190 [2021-10-07 15:52:13,061 INFO L226 Difference]: Without dead ends: 22622 [2021-10-07 15:52:13,062 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 3069.3ms TimeCoverageRelationStatistics Valid=332, Invalid=2118, Unknown=0, NotChecked=0, Total=2450 [2021-10-07 15:52:13,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22622 states. [2021-10-07 15:52:13,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22622 to 19608. [2021-10-07 15:52:13,702 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) [2021-10-07 15:52:13,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19608 states to 19608 states and 59974 transitions. [2021-10-07 15:52:13,782 INFO L78 Accepts]: Start accepts. Automaton has 19608 states and 59974 transitions. Word has length 54 [2021-10-07 15:52:13,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:52:13,782 INFO L470 AbstractCegarLoop]: Abstraction has 19608 states and 59974 transitions. [2021-10-07 15:52:13,783 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) [2021-10-07 15:52:13,783 INFO L276 IsEmpty]: Start isEmpty. Operand 19608 states and 59974 transitions. [2021-10-07 15:52:13,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:52:13,828 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:52:13,828 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] [2021-10-07 15:52:13,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (82)] Ended with exit code 0 [2021-10-07 15:52:14,060 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 [2021-10-07 15:52:14,061 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)] === [2021-10-07 15:52:14,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:52:14,062 INFO L82 PathProgramCache]: Analyzing trace with hash 116171885, now seen corresponding path program 4 times [2021-10-07 15:52:14,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:52:14,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830832333] [2021-10-07 15:52:14,063 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:52:14,063 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:52:14,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:52:14,065 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) [2021-10-07 15:52:14,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2021-10-07 15:52:16,251 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:52:16,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:52:16,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:52:16,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:52:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:16,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:52:17,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:17,855 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:52:17,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830832333] [2021-10-07 15:52:17,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830832333] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:52:17,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:52:17,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:52:17,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487070075] [2021-10-07 15:52:17,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:52:17,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:52:17,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:52:17,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:52:17,857 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) [2021-10-07 15:52:23,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:52:23,313 INFO L93 Difference]: Finished difference Result 22614 states and 67985 transitions. [2021-10-07 15:52:23,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-07 15:52:23,315 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 [2021-10-07 15:52:23,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:52:23,372 INFO L225 Difference]: With dead ends: 22614 [2021-10-07 15:52:23,372 INFO L226 Difference]: Without dead ends: 22118 [2021-10-07 15:52:23,372 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 2980.9ms TimeCoverageRelationStatistics Valid=359, Invalid=2503, Unknown=0, NotChecked=0, Total=2862 [2021-10-07 15:52:23,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22118 states. [2021-10-07 15:52:23,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22118 to 19644. [2021-10-07 15:52:23,730 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) [2021-10-07 15:52:23,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19644 states to 19644 states and 60075 transitions. [2021-10-07 15:52:23,785 INFO L78 Accepts]: Start accepts. Automaton has 19644 states and 60075 transitions. Word has length 54 [2021-10-07 15:52:23,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:52:23,785 INFO L470 AbstractCegarLoop]: Abstraction has 19644 states and 60075 transitions. [2021-10-07 15:52:23,785 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) [2021-10-07 15:52:23,785 INFO L276 IsEmpty]: Start isEmpty. Operand 19644 states and 60075 transitions. [2021-10-07 15:52:23,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:52:23,819 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:52:23,819 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] [2021-10-07 15:52:23,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (83)] Forceful destruction successful, exit code 0 [2021-10-07 15:52:24,020 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 [2021-10-07 15:52:24,020 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)] === [2021-10-07 15:52:24,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:52:24,021 INFO L82 PathProgramCache]: Analyzing trace with hash -2093491049, now seen corresponding path program 5 times [2021-10-07 15:52:24,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:52:24,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869252930] [2021-10-07 15:52:24,022 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:52:24,023 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:52:24,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:52:24,024 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) [2021-10-07 15:52:24,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2021-10-07 15:52:26,217 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:52:26,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:52:26,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:52:26,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:52:26,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:26,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:52:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:27,820 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:52:27,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869252930] [2021-10-07 15:52:27,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869252930] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:52:27,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:52:27,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:52:27,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069154873] [2021-10-07 15:52:27,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:52:27,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:52:27,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:52:27,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:52:27,822 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) [2021-10-07 15:52:39,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:52:39,888 INFO L93 Difference]: Finished difference Result 23162 states and 68615 transitions. [2021-10-07 15:52:39,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-10-07 15:52:39,889 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 [2021-10-07 15:52:39,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:52:39,944 INFO L225 Difference]: With dead ends: 23162 [2021-10-07 15:52:39,944 INFO L226 Difference]: Without dead ends: 22742 [2021-10-07 15:52:39,945 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2298 ImplicationChecksByTransitivity, 6432.3ms TimeCoverageRelationStatistics Valid=1043, Invalid=6967, Unknown=0, NotChecked=0, Total=8010 [2021-10-07 15:52:39,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22742 states. [2021-10-07 15:52:40,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22742 to 18298. [2021-10-07 15:52:40,340 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) [2021-10-07 15:52:40,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18298 states to 18298 states and 55682 transitions. [2021-10-07 15:52:40,388 INFO L78 Accepts]: Start accepts. Automaton has 18298 states and 55682 transitions. Word has length 54 [2021-10-07 15:52:40,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:52:40,389 INFO L470 AbstractCegarLoop]: Abstraction has 18298 states and 55682 transitions. [2021-10-07 15:52:40,389 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) [2021-10-07 15:52:40,389 INFO L276 IsEmpty]: Start isEmpty. Operand 18298 states and 55682 transitions. [2021-10-07 15:52:40,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:52:40,419 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:52:40,419 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] [2021-10-07 15:52:40,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (84)] Forceful destruction successful, exit code 0 [2021-10-07 15:52:40,620 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 [2021-10-07 15:52:40,620 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)] === [2021-10-07 15:52:40,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:52:40,621 INFO L82 PathProgramCache]: Analyzing trace with hash -277749765, now seen corresponding path program 6 times [2021-10-07 15:52:40,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:52:40,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214633855] [2021-10-07 15:52:40,622 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:52:40,623 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:52:40,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:52:40,624 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) [2021-10-07 15:52:40,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2021-10-07 15:52:42,705 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:52:42,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:52:42,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:52:42,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:52:43,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:43,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:52:44,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:44,451 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:52:44,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214633855] [2021-10-07 15:52:44,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214633855] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:52:44,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:52:44,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:52:44,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935441954] [2021-10-07 15:52:44,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:52:44,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:52:44,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:52:44,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:52:44,454 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) [2021-10-07 15:52:54,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:52:54,733 INFO L93 Difference]: Finished difference Result 22472 states and 66509 transitions. [2021-10-07 15:52:54,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-10-07 15:52:54,734 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 [2021-10-07 15:52:54,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:52:54,784 INFO L225 Difference]: With dead ends: 22472 [2021-10-07 15:52:54,784 INFO L226 Difference]: Without dead ends: 21958 [2021-10-07 15:52:54,784 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1819 ImplicationChecksByTransitivity, 5353.9ms TimeCoverageRelationStatistics Valid=775, Invalid=5867, Unknown=0, NotChecked=0, Total=6642 [2021-10-07 15:52:54,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21958 states. [2021-10-07 15:52:55,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21958 to 18204. [2021-10-07 15:52:55,120 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) [2021-10-07 15:52:55,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18204 states to 18204 states and 55417 transitions. [2021-10-07 15:52:55,168 INFO L78 Accepts]: Start accepts. Automaton has 18204 states and 55417 transitions. Word has length 54 [2021-10-07 15:52:55,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:52:55,168 INFO L470 AbstractCegarLoop]: Abstraction has 18204 states and 55417 transitions. [2021-10-07 15:52:55,168 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) [2021-10-07 15:52:55,168 INFO L276 IsEmpty]: Start isEmpty. Operand 18204 states and 55417 transitions. [2021-10-07 15:52:55,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:52:55,198 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:52:55,198 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] [2021-10-07 15:52:55,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (85)] Forceful destruction successful, exit code 0 [2021-10-07 15:52:55,399 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 [2021-10-07 15:52:55,399 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)] === [2021-10-07 15:52:55,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:52:55,400 INFO L82 PathProgramCache]: Analyzing trace with hash -861524355, now seen corresponding path program 7 times [2021-10-07 15:52:55,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:52:55,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157928336] [2021-10-07 15:52:55,402 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:52:55,402 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:52:55,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:52:55,404 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) [2021-10-07 15:52:55,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (86)] Waiting until timeout for monitored process [2021-10-07 15:52:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:52:57,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 15:52:57,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:52:57,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:57,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:52:58,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:58,075 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:52:58,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157928336] [2021-10-07 15:52:58,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157928336] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:52:58,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:52:58,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-07 15:52:58,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948479256] [2021-10-07 15:52:58,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-07 15:52:58,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:52:58,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-07 15:52:58,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-10-07 15:52:58,078 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) [2021-10-07 15:52:59,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:52:59,137 INFO L93 Difference]: Finished difference Result 22188 states and 66595 transitions. [2021-10-07 15:52:59,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:52:59,138 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 [2021-10-07 15:52:59,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:52:59,188 INFO L225 Difference]: With dead ends: 22188 [2021-10-07 15:52:59,188 INFO L226 Difference]: Without dead ends: 22188 [2021-10-07 15:52:59,189 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 295.6ms TimeCoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2021-10-07 15:52:59,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22188 states. [2021-10-07 15:52:59,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22188 to 18220. [2021-10-07 15:52:59,532 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) [2021-10-07 15:52:59,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18220 states to 18220 states and 55465 transitions. [2021-10-07 15:52:59,580 INFO L78 Accepts]: Start accepts. Automaton has 18220 states and 55465 transitions. Word has length 54 [2021-10-07 15:52:59,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:52:59,581 INFO L470 AbstractCegarLoop]: Abstraction has 18220 states and 55465 transitions. [2021-10-07 15:52:59,581 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) [2021-10-07 15:52:59,581 INFO L276 IsEmpty]: Start isEmpty. Operand 18220 states and 55465 transitions. [2021-10-07 15:52:59,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:52:59,614 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:52:59,614 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] [2021-10-07 15:52:59,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (86)] Forceful destruction successful, exit code 0 [2021-10-07 15:52:59,815 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 [2021-10-07 15:52:59,815 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)] === [2021-10-07 15:52:59,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:52:59,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1344324653, now seen corresponding path program 8 times [2021-10-07 15:52:59,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:52:59,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817379470] [2021-10-07 15:52:59,817 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:52:59,818 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:52:59,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:52:59,819 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) [2021-10-07 15:52:59,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2021-10-07 15:53:01,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:53:01,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:53:01,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:53:01,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:02,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:02,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:03,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:03,782 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:03,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817379470] [2021-10-07 15:53:03,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817379470] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:03,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:03,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:53:03,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775861194] [2021-10-07 15:53:03,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:53:03,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:03,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:53:03,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:53:03,785 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) [2021-10-07 15:53:08,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:08,170 INFO L93 Difference]: Finished difference Result 21560 states and 64683 transitions. [2021-10-07 15:53:08,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-07 15:53:08,171 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 [2021-10-07 15:53:08,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:08,223 INFO L225 Difference]: With dead ends: 21560 [2021-10-07 15:53:08,223 INFO L226 Difference]: Without dead ends: 21156 [2021-10-07 15:53:08,223 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2144.9ms TimeCoverageRelationStatistics Valid=269, Invalid=1537, Unknown=0, NotChecked=0, Total=1806 [2021-10-07 15:53:08,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21156 states. [2021-10-07 15:53:08,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21156 to 18292. [2021-10-07 15:53:08,585 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) [2021-10-07 15:53:08,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18292 states to 18292 states and 55675 transitions. [2021-10-07 15:53:08,652 INFO L78 Accepts]: Start accepts. Automaton has 18292 states and 55675 transitions. Word has length 54 [2021-10-07 15:53:08,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:08,652 INFO L470 AbstractCegarLoop]: Abstraction has 18292 states and 55675 transitions. [2021-10-07 15:53:08,652 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) [2021-10-07 15:53:08,653 INFO L276 IsEmpty]: Start isEmpty. Operand 18292 states and 55675 transitions. [2021-10-07 15:53:08,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:53:08,693 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:08,693 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] [2021-10-07 15:53:08,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (87)] Forceful destruction successful, exit code 0 [2021-10-07 15:53:08,893 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 [2021-10-07 15:53:08,894 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)] === [2021-10-07 15:53:08,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:08,894 INFO L82 PathProgramCache]: Analyzing trace with hash 315497389, now seen corresponding path program 9 times [2021-10-07 15:53:08,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:08,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853319084] [2021-10-07 15:53:08,896 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:53:08,896 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:08,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:08,898 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) [2021-10-07 15:53:08,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2021-10-07 15:53:11,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:53:11,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:53:11,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:53:11,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:11,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:11,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:13,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:13,182 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:13,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853319084] [2021-10-07 15:53:13,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853319084] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:13,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:13,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:53:13,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871098578] [2021-10-07 15:53:13,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:53:13,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:13,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:53:13,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:53:13,184 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) [2021-10-07 15:53:16,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:16,232 INFO L93 Difference]: Finished difference Result 20316 states and 61316 transitions. [2021-10-07 15:53:16,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-07 15:53:16,233 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 [2021-10-07 15:53:16,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:16,280 INFO L225 Difference]: With dead ends: 20316 [2021-10-07 15:53:16,280 INFO L226 Difference]: Without dead ends: 20060 [2021-10-07 15:53:16,280 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1701.8ms TimeCoverageRelationStatistics Valid=190, Invalid=1142, Unknown=0, NotChecked=0, Total=1332 [2021-10-07 15:53:16,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20060 states. [2021-10-07 15:53:16,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20060 to 18304. [2021-10-07 15:53:16,594 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) [2021-10-07 15:53:16,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18304 states to 18304 states and 55707 transitions. [2021-10-07 15:53:16,642 INFO L78 Accepts]: Start accepts. Automaton has 18304 states and 55707 transitions. Word has length 54 [2021-10-07 15:53:16,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:16,643 INFO L470 AbstractCegarLoop]: Abstraction has 18304 states and 55707 transitions. [2021-10-07 15:53:16,643 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) [2021-10-07 15:53:16,643 INFO L276 IsEmpty]: Start isEmpty. Operand 18304 states and 55707 transitions. [2021-10-07 15:53:16,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:53:16,673 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:16,673 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] [2021-10-07 15:53:16,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (88)] Forceful destruction successful, exit code 0 [2021-10-07 15:53:16,873 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 [2021-10-07 15:53:16,874 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)] === [2021-10-07 15:53:16,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:16,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1894165545, now seen corresponding path program 10 times [2021-10-07 15:53:16,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:16,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637455210] [2021-10-07 15:53:16,875 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:53:16,876 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:16,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:16,877 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) [2021-10-07 15:53:16,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2021-10-07 15:53:19,357 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:53:19,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:53:19,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:53:19,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:19,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:19,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:21,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:21,144 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:21,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637455210] [2021-10-07 15:53:21,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637455210] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:21,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:21,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:53:21,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928947411] [2021-10-07 15:53:21,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:53:21,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:21,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:53:21,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:53:21,146 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) [2021-10-07 15:53:27,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:27,007 INFO L93 Difference]: Finished difference Result 21232 states and 63791 transitions. [2021-10-07 15:53:27,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-07 15:53:27,008 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 [2021-10-07 15:53:27,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:27,056 INFO L225 Difference]: With dead ends: 21232 [2021-10-07 15:53:27,057 INFO L226 Difference]: Without dead ends: 21020 [2021-10-07 15:53:27,057 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 3232.1ms TimeCoverageRelationStatistics Valid=479, Invalid=2713, Unknown=0, NotChecked=0, Total=3192 [2021-10-07 15:53:27,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21020 states. [2021-10-07 15:53:27,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21020 to 18338. [2021-10-07 15:53:27,506 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) [2021-10-07 15:53:27,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18338 states to 18338 states and 55800 transitions. [2021-10-07 15:53:27,554 INFO L78 Accepts]: Start accepts. Automaton has 18338 states and 55800 transitions. Word has length 54 [2021-10-07 15:53:27,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:27,554 INFO L470 AbstractCegarLoop]: Abstraction has 18338 states and 55800 transitions. [2021-10-07 15:53:27,554 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) [2021-10-07 15:53:27,555 INFO L276 IsEmpty]: Start isEmpty. Operand 18338 states and 55800 transitions. [2021-10-07 15:53:27,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:53:27,585 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:27,585 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] [2021-10-07 15:53:27,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (89)] Forceful destruction successful, exit code 0 [2021-10-07 15:53:27,786 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 [2021-10-07 15:53:27,786 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)] === [2021-10-07 15:53:27,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:27,787 INFO L82 PathProgramCache]: Analyzing trace with hash -78424261, now seen corresponding path program 11 times [2021-10-07 15:53:27,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:27,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934708704] [2021-10-07 15:53:27,789 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:53:27,789 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:27,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:27,790 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) [2021-10-07 15:53:27,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2021-10-07 15:53:30,008 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:53:30,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:53:30,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:53:30,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:30,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:30,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:31,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:31,870 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:31,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934708704] [2021-10-07 15:53:31,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934708704] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:31,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:31,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:53:31,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777956890] [2021-10-07 15:53:31,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:53:31,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:31,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:53:31,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:53:31,871 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) [2021-10-07 15:53:37,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:37,461 INFO L93 Difference]: Finished difference Result 21302 states and 63840 transitions. [2021-10-07 15:53:37,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-07 15:53:37,463 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 [2021-10-07 15:53:37,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:37,514 INFO L225 Difference]: With dead ends: 21302 [2021-10-07 15:53:37,514 INFO L226 Difference]: Without dead ends: 21044 [2021-10-07 15:53:37,514 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 2970.2ms TimeCoverageRelationStatistics Valid=445, Invalid=2525, Unknown=0, NotChecked=0, Total=2970 [2021-10-07 15:53:37,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21044 states. [2021-10-07 15:53:37,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21044 to 18272. [2021-10-07 15:53:38,066 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) [2021-10-07 15:53:38,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18272 states to 18272 states and 55627 transitions. [2021-10-07 15:53:38,111 INFO L78 Accepts]: Start accepts. Automaton has 18272 states and 55627 transitions. Word has length 54 [2021-10-07 15:53:38,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:38,111 INFO L470 AbstractCegarLoop]: Abstraction has 18272 states and 55627 transitions. [2021-10-07 15:53:38,112 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) [2021-10-07 15:53:38,112 INFO L276 IsEmpty]: Start isEmpty. Operand 18272 states and 55627 transitions. [2021-10-07 15:53:38,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:53:38,142 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:38,143 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] [2021-10-07 15:53:38,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (90)] Forceful destruction successful, exit code 0 [2021-10-07 15:53:38,343 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 [2021-10-07 15:53:38,343 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)] === [2021-10-07 15:53:38,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:38,344 INFO L82 PathProgramCache]: Analyzing trace with hash -309029272, now seen corresponding path program 1 times [2021-10-07 15:53:38,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:38,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487884987] [2021-10-07 15:53:38,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:53:38,346 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:38,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:38,347 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) [2021-10-07 15:53:38,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2021-10-07 15:53:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:53:40,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 15:53:40,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:40,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:40,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:41,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:41,487 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:41,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487884987] [2021-10-07 15:53:41,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487884987] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:41,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:41,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2021-10-07 15:53:41,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429828395] [2021-10-07 15:53:41,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-07 15:53:41,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:41,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-07 15:53:41,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-10-07 15:53:41,489 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) [2021-10-07 15:53:43,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:43,799 INFO L93 Difference]: Finished difference Result 19770 states and 60086 transitions. [2021-10-07 15:53:43,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-07 15:53:43,800 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 [2021-10-07 15:53:43,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:43,845 INFO L225 Difference]: With dead ends: 19770 [2021-10-07 15:53:43,845 INFO L226 Difference]: Without dead ends: 19770 [2021-10-07 15:53:43,845 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 909.8ms TimeCoverageRelationStatistics Valid=223, Invalid=1109, Unknown=0, NotChecked=0, Total=1332 [2021-10-07 15:53:43,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19770 states. [2021-10-07 15:53:44,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19770 to 18392. [2021-10-07 15:53:44,166 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) [2021-10-07 15:53:44,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18392 states to 18392 states and 55989 transitions. [2021-10-07 15:53:44,217 INFO L78 Accepts]: Start accepts. Automaton has 18392 states and 55989 transitions. Word has length 54 [2021-10-07 15:53:44,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:44,218 INFO L470 AbstractCegarLoop]: Abstraction has 18392 states and 55989 transitions. [2021-10-07 15:53:44,218 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) [2021-10-07 15:53:44,218 INFO L276 IsEmpty]: Start isEmpty. Operand 18392 states and 55989 transitions. [2021-10-07 15:53:44,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:53:44,249 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:44,249 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] [2021-10-07 15:53:44,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (91)] Ended with exit code 0 [2021-10-07 15:53:44,449 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 [2021-10-07 15:53:44,450 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)] === [2021-10-07 15:53:44,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:44,451 INFO L82 PathProgramCache]: Analyzing trace with hash -348451318, now seen corresponding path program 2 times [2021-10-07 15:53:44,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:44,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33327250] [2021-10-07 15:53:44,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:53:44,452 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:44,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:44,453 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) [2021-10-07 15:53:44,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (92)] Waiting until timeout for monitored process [2021-10-07 15:53:46,858 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:53:46,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:53:46,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-07 15:53:46,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:47,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:47,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:47,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:47,541 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:47,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33327250] [2021-10-07 15:53:47,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33327250] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:47,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:47,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-10-07 15:53:47,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003548926] [2021-10-07 15:53:47,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-07 15:53:47,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:47,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-07 15:53:47,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-10-07 15:53:47,543 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) [2021-10-07 15:53:49,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:49,256 INFO L93 Difference]: Finished difference Result 19730 states and 60000 transitions. [2021-10-07 15:53:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:53:49,257 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 [2021-10-07 15:53:49,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:49,302 INFO L225 Difference]: With dead ends: 19730 [2021-10-07 15:53:49,302 INFO L226 Difference]: Without dead ends: 19730 [2021-10-07 15:53:49,303 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 744.6ms TimeCoverageRelationStatistics Valid=187, Invalid=935, Unknown=0, NotChecked=0, Total=1122 [2021-10-07 15:53:49,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19730 states. [2021-10-07 15:53:49,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19730 to 18416. [2021-10-07 15:53:49,766 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) [2021-10-07 15:53:49,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18416 states to 18416 states and 56061 transitions. [2021-10-07 15:53:49,817 INFO L78 Accepts]: Start accepts. Automaton has 18416 states and 56061 transitions. Word has length 54 [2021-10-07 15:53:49,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:49,818 INFO L470 AbstractCegarLoop]: Abstraction has 18416 states and 56061 transitions. [2021-10-07 15:53:49,818 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) [2021-10-07 15:53:49,818 INFO L276 IsEmpty]: Start isEmpty. Operand 18416 states and 56061 transitions. [2021-10-07 15:53:49,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:53:49,849 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:49,849 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] [2021-10-07 15:53:49,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (92)] Forceful destruction successful, exit code 0 [2021-10-07 15:53:50,050 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 [2021-10-07 15:53:50,050 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)] === [2021-10-07 15:53:50,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:50,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1714455672, now seen corresponding path program 3 times [2021-10-07 15:53:50,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:50,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419195009] [2021-10-07 15:53:50,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:53:50,053 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:50,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:50,054 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) [2021-10-07 15:53:50,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2021-10-07 15:53:52,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:53:52,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:53:52,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:53:52,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:52,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:52,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:53,791 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:53,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419195009] [2021-10-07 15:53:53,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419195009] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:53,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:53,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:53:53,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450120987] [2021-10-07 15:53:53,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:53:53,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:53,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:53:53,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:53:53,793 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) [2021-10-07 15:53:56,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:56,044 INFO L93 Difference]: Finished difference Result 19844 states and 60126 transitions. [2021-10-07 15:53:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:53:56,045 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 [2021-10-07 15:53:56,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:56,092 INFO L225 Difference]: With dead ends: 19844 [2021-10-07 15:53:56,092 INFO L226 Difference]: Without dead ends: 19502 [2021-10-07 15:53:56,092 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1223.6ms TimeCoverageRelationStatistics Valid=182, Invalid=1150, Unknown=0, NotChecked=0, Total=1332 [2021-10-07 15:53:56,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19502 states. [2021-10-07 15:53:56,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19502 to 18424. [2021-10-07 15:53:56,525 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) [2021-10-07 15:53:56,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18424 states to 18424 states and 56069 transitions. [2021-10-07 15:53:56,573 INFO L78 Accepts]: Start accepts. Automaton has 18424 states and 56069 transitions. Word has length 54 [2021-10-07 15:53:56,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:56,573 INFO L470 AbstractCegarLoop]: Abstraction has 18424 states and 56069 transitions. [2021-10-07 15:53:56,574 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) [2021-10-07 15:53:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 18424 states and 56069 transitions. [2021-10-07 15:53:56,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:53:56,604 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:56,604 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] [2021-10-07 15:53:56,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (93)] Forceful destruction successful, exit code 0 [2021-10-07 15:53:56,805 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 [2021-10-07 15:53:56,805 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)] === [2021-10-07 15:53:56,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:56,806 INFO L82 PathProgramCache]: Analyzing trace with hash 101285612, now seen corresponding path program 4 times [2021-10-07 15:53:56,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:56,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541153880] [2021-10-07 15:53:56,807 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:53:56,808 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:56,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:56,809 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) [2021-10-07 15:53:56,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (94)] Waiting until timeout for monitored process [2021-10-07 15:53:59,364 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:53:59,364 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:53:59,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:53:59,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:59,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:59,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:54:00,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:00,625 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:54:00,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541153880] [2021-10-07 15:54:00,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541153880] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:54:00,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:54:00,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:54:00,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372064818] [2021-10-07 15:54:00,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:54:00,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:54:00,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:54:00,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:54:00,627 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) [2021-10-07 15:54:02,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:54:02,797 INFO L93 Difference]: Finished difference Result 19466 states and 59127 transitions. [2021-10-07 15:54:02,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-07 15:54:02,798 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 [2021-10-07 15:54:02,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:54:02,843 INFO L225 Difference]: With dead ends: 19466 [2021-10-07 15:54:02,843 INFO L226 Difference]: Without dead ends: 19186 [2021-10-07 15:54:02,843 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1187.0ms TimeCoverageRelationStatistics Valid=179, Invalid=1153, Unknown=0, NotChecked=0, Total=1332 [2021-10-07 15:54:02,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19186 states. [2021-10-07 15:54:03,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19186 to 18408. [2021-10-07 15:54:03,298 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) [2021-10-07 15:54:03,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18408 states to 18408 states and 56029 transitions. [2021-10-07 15:54:03,347 INFO L78 Accepts]: Start accepts. Automaton has 18408 states and 56029 transitions. Word has length 54 [2021-10-07 15:54:03,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:54:03,347 INFO L470 AbstractCegarLoop]: Abstraction has 18408 states and 56029 transitions. [2021-10-07 15:54:03,347 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) [2021-10-07 15:54:03,347 INFO L276 IsEmpty]: Start isEmpty. Operand 18408 states and 56029 transitions. [2021-10-07 15:54:03,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:54:03,379 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:54:03,379 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] [2021-10-07 15:54:03,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (94)] Forceful destruction successful, exit code 0 [2021-10-07 15:54:03,579 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 [2021-10-07 15:54:03,580 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)] === [2021-10-07 15:54:03,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:54:03,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1878230538, now seen corresponding path program 5 times [2021-10-07 15:54:03,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:54:03,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951245537] [2021-10-07 15:54:03,582 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:54:03,583 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:54:03,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:54:03,584 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) [2021-10-07 15:54:03,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (95)] Waiting until timeout for monitored process [2021-10-07 15:54:05,817 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:54:05,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:54:05,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:54:05,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:54:06,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:06,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:54:07,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:07,211 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:54:07,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951245537] [2021-10-07 15:54:07,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951245537] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:54:07,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:54:07,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:54:07,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185747196] [2021-10-07 15:54:07,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:54:07,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:54:07,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:54:07,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:54:07,214 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) [2021-10-07 15:54:08,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:54:08,977 INFO L93 Difference]: Finished difference Result 19464 states and 59113 transitions. [2021-10-07 15:54:08,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-07 15:54:08,978 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 [2021-10-07 15:54:08,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:54:09,024 INFO L225 Difference]: With dead ends: 19464 [2021-10-07 15:54:09,024 INFO L226 Difference]: Without dead ends: 19064 [2021-10-07 15:54:09,025 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 934.1ms TimeCoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2021-10-07 15:54:09,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19064 states. [2021-10-07 15:54:09,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19064 to 18400. [2021-10-07 15:54:09,473 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) [2021-10-07 15:54:09,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18400 states to 18400 states and 56005 transitions. [2021-10-07 15:54:09,524 INFO L78 Accepts]: Start accepts. Automaton has 18400 states and 56005 transitions. Word has length 54 [2021-10-07 15:54:09,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:54:09,524 INFO L470 AbstractCegarLoop]: Abstraction has 18400 states and 56005 transitions. [2021-10-07 15:54:09,524 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) [2021-10-07 15:54:09,524 INFO L276 IsEmpty]: Start isEmpty. Operand 18400 states and 56005 transitions. [2021-10-07 15:54:09,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:54:09,557 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:54:09,557 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] [2021-10-07 15:54:09,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (95)] Forceful destruction successful, exit code 0 [2021-10-07 15:54:09,758 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 [2021-10-07 15:54:09,758 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)] === [2021-10-07 15:54:09,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:54:09,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1471015000, now seen corresponding path program 6 times [2021-10-07 15:54:09,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:54:09,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819200668] [2021-10-07 15:54:09,760 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:54:09,761 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:54:09,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:54:09,762 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) [2021-10-07 15:54:09,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2021-10-07 15:54:12,112 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:54:12,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:54:12,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:54:12,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:54:12,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:12,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:54:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:13,505 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:54:13,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819200668] [2021-10-07 15:54:13,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819200668] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:54:13,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:54:13,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:54:13,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57310664] [2021-10-07 15:54:13,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:54:13,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:54:13,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:54:13,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:54:13,507 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) [2021-10-07 15:54:15,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:54:15,230 INFO L93 Difference]: Finished difference Result 20188 states and 61189 transitions. [2021-10-07 15:54:15,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-07 15:54:15,231 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 [2021-10-07 15:54:15,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:54:15,283 INFO L225 Difference]: With dead ends: 20188 [2021-10-07 15:54:15,284 INFO L226 Difference]: Without dead ends: 19776 [2021-10-07 15:54:15,284 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 890.3ms TimeCoverageRelationStatistics Valid=135, Invalid=921, Unknown=0, NotChecked=0, Total=1056 [2021-10-07 15:54:15,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19776 states. [2021-10-07 15:54:15,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19776 to 18562. [2021-10-07 15:54:15,770 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) [2021-10-07 15:54:15,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18562 states to 18562 states and 56460 transitions. [2021-10-07 15:54:15,822 INFO L78 Accepts]: Start accepts. Automaton has 18562 states and 56460 transitions. Word has length 54 [2021-10-07 15:54:15,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:54:15,822 INFO L470 AbstractCegarLoop]: Abstraction has 18562 states and 56460 transitions. [2021-10-07 15:54:15,822 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) [2021-10-07 15:54:15,823 INFO L276 IsEmpty]: Start isEmpty. Operand 18562 states and 56460 transitions. [2021-10-07 15:54:15,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:54:15,854 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:54:15,854 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] [2021-10-07 15:54:15,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (96)] Forceful destruction successful, exit code 0 [2021-10-07 15:54:16,055 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 [2021-10-07 15:54:16,055 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)] === [2021-10-07 15:54:16,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:54:16,056 INFO L82 PathProgramCache]: Analyzing trace with hash 2000806704, now seen corresponding path program 7 times [2021-10-07 15:54:16,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:54:16,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056130598] [2021-10-07 15:54:16,057 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:54:16,058 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:54:16,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:54:16,059 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) [2021-10-07 15:54:16,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (97)] Waiting until timeout for monitored process [2021-10-07 15:54:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:54:18,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:54:18,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:54:19,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:19,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:54:19,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:19,953 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:54:19,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056130598] [2021-10-07 15:54:19,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056130598] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:54:19,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:54:19,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:54:19,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435630986] [2021-10-07 15:54:19,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:54:19,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:54:19,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:54:19,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:54:19,954 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) [2021-10-07 15:54:21,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:54:21,951 INFO L93 Difference]: Finished difference Result 20188 states and 60948 transitions. [2021-10-07 15:54:21,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-07 15:54:21,952 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 [2021-10-07 15:54:21,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:54:21,999 INFO L225 Difference]: With dead ends: 20188 [2021-10-07 15:54:22,000 INFO L226 Difference]: Without dead ends: 19846 [2021-10-07 15:54:22,000 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1177.6ms TimeCoverageRelationStatistics Valid=204, Invalid=1278, Unknown=0, NotChecked=0, Total=1482 [2021-10-07 15:54:22,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19846 states. [2021-10-07 15:54:22,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19846 to 18562. [2021-10-07 15:54:22,467 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) [2021-10-07 15:54:22,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18562 states to 18562 states and 56452 transitions. [2021-10-07 15:54:22,516 INFO L78 Accepts]: Start accepts. Automaton has 18562 states and 56452 transitions. Word has length 54 [2021-10-07 15:54:22,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:54:22,517 INFO L470 AbstractCegarLoop]: Abstraction has 18562 states and 56452 transitions. [2021-10-07 15:54:22,517 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) [2021-10-07 15:54:22,517 INFO L276 IsEmpty]: Start isEmpty. Operand 18562 states and 56452 transitions. [2021-10-07 15:54:22,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:54:22,550 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:54:22,551 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] [2021-10-07 15:54:22,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (97)] Forceful destruction successful, exit code 0 [2021-10-07 15:54:22,751 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 [2021-10-07 15:54:22,752 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)] === [2021-10-07 15:54:22,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:54:22,752 INFO L82 PathProgramCache]: Analyzing trace with hash -478419308, now seen corresponding path program 8 times [2021-10-07 15:54:22,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:54:22,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146875632] [2021-10-07 15:54:22,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:54:22,754 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:54:22,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:54:22,755 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) [2021-10-07 15:54:22,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (98)] Waiting until timeout for monitored process [2021-10-07 15:54:25,256 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:54:25,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:54:25,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:54:25,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:54:25,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:25,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:54:26,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:26,656 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:54:26,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146875632] [2021-10-07 15:54:26,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146875632] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:54:26,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:54:26,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:54:26,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726075152] [2021-10-07 15:54:26,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:54:26,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:54:26,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:54:26,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:54:26,658 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) [2021-10-07 15:54:28,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:54:28,621 INFO L93 Difference]: Finished difference Result 19772 states and 59840 transitions. [2021-10-07 15:54:28,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-07 15:54:28,622 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 [2021-10-07 15:54:28,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:54:28,669 INFO L225 Difference]: With dead ends: 19772 [2021-10-07 15:54:28,669 INFO L226 Difference]: Without dead ends: 19492 [2021-10-07 15:54:28,669 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1023.5ms TimeCoverageRelationStatistics Valid=189, Invalid=1143, Unknown=0, NotChecked=0, Total=1332 [2021-10-07 15:54:28,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19492 states. [2021-10-07 15:54:29,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19492 to 18546. [2021-10-07 15:54:29,124 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) [2021-10-07 15:54:29,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18546 states to 18546 states and 56412 transitions. [2021-10-07 15:54:29,174 INFO L78 Accepts]: Start accepts. Automaton has 18546 states and 56412 transitions. Word has length 54 [2021-10-07 15:54:29,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:54:29,174 INFO L470 AbstractCegarLoop]: Abstraction has 18546 states and 56412 transitions. [2021-10-07 15:54:29,174 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) [2021-10-07 15:54:29,174 INFO L276 IsEmpty]: Start isEmpty. Operand 18546 states and 56412 transitions. [2021-10-07 15:54:29,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:54:29,207 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:54:29,207 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] [2021-10-07 15:54:29,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (98)] Forceful destruction successful, exit code 0 [2021-10-07 15:54:29,407 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 [2021-10-07 15:54:29,408 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)] === [2021-10-07 15:54:29,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:54:29,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1298525618, now seen corresponding path program 9 times [2021-10-07 15:54:29,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:54:29,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020911389] [2021-10-07 15:54:29,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:54:29,411 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:54:29,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:54:29,412 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) [2021-10-07 15:54:29,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (99)] Waiting until timeout for monitored process [2021-10-07 15:54:31,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:54:31,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:54:31,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:54:31,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:54:32,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:32,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:54:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:33,343 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:54:33,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020911389] [2021-10-07 15:54:33,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020911389] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:54:33,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:54:33,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:54:33,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115454266] [2021-10-07 15:54:33,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:54:33,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:54:33,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:54:33,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:54:33,346 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) [2021-10-07 15:54:35,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:54:35,177 INFO L93 Difference]: Finished difference Result 19476 states and 58967 transitions. [2021-10-07 15:54:35,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-07 15:54:35,178 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 [2021-10-07 15:54:35,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:54:35,222 INFO L225 Difference]: With dead ends: 19476 [2021-10-07 15:54:35,222 INFO L226 Difference]: Without dead ends: 19068 [2021-10-07 15:54:35,223 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1028.6ms TimeCoverageRelationStatistics Valid=145, Invalid=1045, Unknown=0, NotChecked=0, Total=1190 [2021-10-07 15:54:35,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19068 states. [2021-10-07 15:54:35,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19068 to 18522. [2021-10-07 15:54:35,690 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) [2021-10-07 15:54:35,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18522 states to 18522 states and 56338 transitions. [2021-10-07 15:54:35,739 INFO L78 Accepts]: Start accepts. Automaton has 18522 states and 56338 transitions. Word has length 54 [2021-10-07 15:54:35,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:54:35,739 INFO L470 AbstractCegarLoop]: Abstraction has 18522 states and 56338 transitions. [2021-10-07 15:54:35,739 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) [2021-10-07 15:54:35,739 INFO L276 IsEmpty]: Start isEmpty. Operand 18522 states and 56338 transitions. [2021-10-07 15:54:35,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:54:35,771 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:54:35,771 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] [2021-10-07 15:54:35,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (99)] Forceful destruction successful, exit code 0 [2021-10-07 15:54:35,971 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 [2021-10-07 15:54:35,972 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)] === [2021-10-07 15:54:35,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:54:35,972 INFO L82 PathProgramCache]: Analyzing trace with hash 586200702, now seen corresponding path program 10 times [2021-10-07 15:54:35,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:54:35,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572104548] [2021-10-07 15:54:35,974 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:54:35,974 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:54:35,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:54:35,975 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) [2021-10-07 15:54:35,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (100)] Waiting until timeout for monitored process [2021-10-07 15:54:38,568 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:54:38,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:54:38,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:54:38,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:54:38,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:38,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:54:39,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:39,807 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:54:39,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572104548] [2021-10-07 15:54:39,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572104548] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:54:39,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:54:39,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 15:54:39,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244203423] [2021-10-07 15:54:39,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 15:54:39,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:54:39,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 15:54:39,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-07 15:54:39,808 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) [2021-10-07 15:54:41,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:54:41,467 INFO L93 Difference]: Finished difference Result 20530 states and 61699 transitions. [2021-10-07 15:54:41,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-07 15:54:41,468 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 [2021-10-07 15:54:41,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:54:41,520 INFO L225 Difference]: With dead ends: 20530 [2021-10-07 15:54:41,520 INFO L226 Difference]: Without dead ends: 20118 [2021-10-07 15:54:41,520 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 843.6ms TimeCoverageRelationStatistics Valid=157, Invalid=965, Unknown=0, NotChecked=0, Total=1122 [2021-10-07 15:54:41,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20118 states. [2021-10-07 15:54:41,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20118 to 18530. [2021-10-07 15:54:42,010 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) [2021-10-07 15:54:42,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18530 states to 18530 states and 56358 transitions. [2021-10-07 15:54:42,054 INFO L78 Accepts]: Start accepts. Automaton has 18530 states and 56358 transitions. Word has length 54 [2021-10-07 15:54:42,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:54:42,055 INFO L470 AbstractCegarLoop]: Abstraction has 18530 states and 56358 transitions. [2021-10-07 15:54:42,055 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) [2021-10-07 15:54:42,055 INFO L276 IsEmpty]: Start isEmpty. Operand 18530 states and 56358 transitions. [2021-10-07 15:54:42,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:54:42,084 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:54:42,084 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] [2021-10-07 15:54:42,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (100)] Forceful destruction successful, exit code 0 [2021-10-07 15:54:42,284 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 [2021-10-07 15:54:42,285 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)] === [2021-10-07 15:54:42,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:54:42,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1766462036, now seen corresponding path program 11 times [2021-10-07 15:54:42,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:54:42,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789319884] [2021-10-07 15:54:42,287 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:54:42,287 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:54:42,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:54:42,288 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) [2021-10-07 15:54:42,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (101)] Waiting until timeout for monitored process [2021-10-07 15:54:44,784 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:54:44,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:54:44,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:54:44,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:54:45,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:45,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:54:46,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:46,254 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:54:46,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789319884] [2021-10-07 15:54:46,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789319884] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:54:46,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:54:46,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-07 15:54:46,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237925349] [2021-10-07 15:54:46,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-07 15:54:46,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:54:46,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-07 15:54:46,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-07 15:54:46,256 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) [2021-10-07 15:54:51,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:54:51,586 INFO L93 Difference]: Finished difference Result 22514 states and 67513 transitions. [2021-10-07 15:54:51,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-07 15:54:51,587 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 [2021-10-07 15:54:51,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:54:51,640 INFO L225 Difference]: With dead ends: 22514 [2021-10-07 15:54:51,640 INFO L226 Difference]: Without dead ends: 22034 [2021-10-07 15:54:51,641 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 2876.8ms TimeCoverageRelationStatistics Valid=272, Invalid=2278, Unknown=0, NotChecked=0, Total=2550 [2021-10-07 15:54:51,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22034 states. [2021-10-07 15:54:52,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22034 to 19314. [2021-10-07 15:54:52,119 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) [2021-10-07 15:54:52,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19314 states to 19314 states and 58666 transitions. [2021-10-07 15:54:52,172 INFO L78 Accepts]: Start accepts. Automaton has 19314 states and 58666 transitions. Word has length 54 [2021-10-07 15:54:52,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:54:52,172 INFO L470 AbstractCegarLoop]: Abstraction has 19314 states and 58666 transitions. [2021-10-07 15:54:52,172 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) [2021-10-07 15:54:52,172 INFO L276 IsEmpty]: Start isEmpty. Operand 19314 states and 58666 transitions. [2021-10-07 15:54:52,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:54:52,206 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:54:52,206 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] [2021-10-07 15:54:52,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (101)] Ended with exit code 0 [2021-10-07 15:54:52,411 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 [2021-10-07 15:54:52,412 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)] === [2021-10-07 15:54:52,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:54:52,412 INFO L82 PathProgramCache]: Analyzing trace with hash -894747030, now seen corresponding path program 12 times [2021-10-07 15:54:52,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:54:52,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827864894] [2021-10-07 15:54:52,413 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:54:52,414 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:54:52,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:54:52,415 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) [2021-10-07 15:54:52,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (102)] Waiting until timeout for monitored process [2021-10-07 15:54:55,189 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:54:55,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:54:55,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:54:55,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:54:55,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:55,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:54:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:56,443 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:54:56,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827864894] [2021-10-07 15:54:56,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827864894] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:54:56,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:54:56,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:54:56,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025565321] [2021-10-07 15:54:56,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:54:56,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:54:56,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:54:56,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:54:56,446 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) [2021-10-07 15:54:58,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:54:58,339 INFO L93 Difference]: Finished difference Result 21084 states and 63631 transitions. [2021-10-07 15:54:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:54:58,340 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 [2021-10-07 15:54:58,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:54:58,390 INFO L225 Difference]: With dead ends: 21084 [2021-10-07 15:54:58,390 INFO L226 Difference]: Without dead ends: 20672 [2021-10-07 15:54:58,391 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 999.7ms TimeCoverageRelationStatistics Valid=149, Invalid=1041, Unknown=0, NotChecked=0, Total=1190 [2021-10-07 15:54:58,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20672 states. [2021-10-07 15:54:58,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20672 to 19338. [2021-10-07 15:54:58,871 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) [2021-10-07 15:54:58,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19338 states to 19338 states and 58732 transitions. [2021-10-07 15:54:58,924 INFO L78 Accepts]: Start accepts. Automaton has 19338 states and 58732 transitions. Word has length 54 [2021-10-07 15:54:58,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:54:58,924 INFO L470 AbstractCegarLoop]: Abstraction has 19338 states and 58732 transitions. [2021-10-07 15:54:58,924 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) [2021-10-07 15:54:58,924 INFO L276 IsEmpty]: Start isEmpty. Operand 19338 states and 58732 transitions. [2021-10-07 15:54:58,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:54:58,957 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:54:58,957 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] [2021-10-07 15:54:58,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (102)] Forceful destruction successful, exit code 0 [2021-10-07 15:54:59,167 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 [2021-10-07 15:54:59,168 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)] === [2021-10-07 15:54:59,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:54:59,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1762280798, now seen corresponding path program 13 times [2021-10-07 15:54:59,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:54:59,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353309676] [2021-10-07 15:54:59,170 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:54:59,170 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:54:59,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:54:59,172 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) [2021-10-07 15:54:59,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (103)] Waiting until timeout for monitored process [2021-10-07 15:55:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:55:01,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:55:01,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:55:02,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:02,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:55:03,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:03,245 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:55:03,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353309676] [2021-10-07 15:55:03,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353309676] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:55:03,245 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:55:03,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:55:03,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724155933] [2021-10-07 15:55:03,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:55:03,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:55:03,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:55:03,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:55:03,247 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) [2021-10-07 15:55:05,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:55:05,637 INFO L93 Difference]: Finished difference Result 21218 states and 63895 transitions. [2021-10-07 15:55:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-07 15:55:05,637 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 [2021-10-07 15:55:05,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:55:05,693 INFO L225 Difference]: With dead ends: 21218 [2021-10-07 15:55:05,694 INFO L226 Difference]: Without dead ends: 20876 [2021-10-07 15:55:05,694 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1405.5ms TimeCoverageRelationStatistics Valid=214, Invalid=1426, Unknown=0, NotChecked=0, Total=1640 [2021-10-07 15:55:05,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20876 states. [2021-10-07 15:55:06,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20876 to 19362. [2021-10-07 15:55:06,165 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) [2021-10-07 15:55:06,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19362 states to 19362 states and 58788 transitions. [2021-10-07 15:55:06,218 INFO L78 Accepts]: Start accepts. Automaton has 19362 states and 58788 transitions. Word has length 54 [2021-10-07 15:55:06,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:55:06,218 INFO L470 AbstractCegarLoop]: Abstraction has 19362 states and 58788 transitions. [2021-10-07 15:55:06,218 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) [2021-10-07 15:55:06,218 INFO L276 IsEmpty]: Start isEmpty. Operand 19362 states and 58788 transitions. [2021-10-07 15:55:06,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:55:06,251 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:55:06,251 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] [2021-10-07 15:55:06,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (103)] Forceful destruction successful, exit code 0 [2021-10-07 15:55:06,451 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 [2021-10-07 15:55:06,452 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)] === [2021-10-07 15:55:06,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:55:06,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1308875842, now seen corresponding path program 14 times [2021-10-07 15:55:06,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:55:06,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809682534] [2021-10-07 15:55:06,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:55:06,454 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:55:06,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:55:06,455 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) [2021-10-07 15:55:06,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (104)] Waiting until timeout for monitored process [2021-10-07 15:55:09,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:55:09,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:55:09,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:55:09,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:55:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:09,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:55:10,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:10,419 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:55:10,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809682534] [2021-10-07 15:55:10,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809682534] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:55:10,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:55:10,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:55:10,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773363877] [2021-10-07 15:55:10,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:55:10,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:55:10,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:55:10,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:55:10,421 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) [2021-10-07 15:55:12,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:55:12,658 INFO L93 Difference]: Finished difference Result 20906 states and 63079 transitions. [2021-10-07 15:55:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-07 15:55:12,659 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 [2021-10-07 15:55:12,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:55:12,709 INFO L225 Difference]: With dead ends: 20906 [2021-10-07 15:55:12,709 INFO L226 Difference]: Without dead ends: 20626 [2021-10-07 15:55:12,709 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1359.9ms TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2021-10-07 15:55:12,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20626 states. [2021-10-07 15:55:13,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20626 to 19346. [2021-10-07 15:55:13,169 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) [2021-10-07 15:55:13,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19346 states to 19346 states and 58748 transitions. [2021-10-07 15:55:13,221 INFO L78 Accepts]: Start accepts. Automaton has 19346 states and 58748 transitions. Word has length 54 [2021-10-07 15:55:13,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:55:13,221 INFO L470 AbstractCegarLoop]: Abstraction has 19346 states and 58748 transitions. [2021-10-07 15:55:13,221 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) [2021-10-07 15:55:13,221 INFO L276 IsEmpty]: Start isEmpty. Operand 19346 states and 58748 transitions. [2021-10-07 15:55:13,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:55:13,262 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:55:13,262 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] [2021-10-07 15:55:13,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (104)] Forceful destruction successful, exit code 0 [2021-10-07 15:55:13,473 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 [2021-10-07 15:55:13,474 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)] === [2021-10-07 15:55:13,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:55:13,474 INFO L82 PathProgramCache]: Analyzing trace with hash -2058157984, now seen corresponding path program 15 times [2021-10-07 15:55:13,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:55:13,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572734817] [2021-10-07 15:55:13,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:55:13,476 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:55:13,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:55:13,478 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) [2021-10-07 15:55:13,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (105)] Waiting until timeout for monitored process [2021-10-07 15:55:16,295 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:55:16,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:55:16,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:55:16,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:55:16,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:16,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:55:17,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:17,566 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:55:17,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572734817] [2021-10-07 15:55:17,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572734817] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:55:17,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:55:17,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:55:17,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929030722] [2021-10-07 15:55:17,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:55:17,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:55:17,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:55:17,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:55:17,569 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) [2021-10-07 15:55:19,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:55:19,480 INFO L93 Difference]: Finished difference Result 20544 states and 62023 transitions. [2021-10-07 15:55:19,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-07 15:55:19,481 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 [2021-10-07 15:55:19,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:55:19,528 INFO L225 Difference]: With dead ends: 20544 [2021-10-07 15:55:19,528 INFO L226 Difference]: Without dead ends: 20136 [2021-10-07 15:55:19,529 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1160.9ms TimeCoverageRelationStatistics Valid=158, Invalid=1174, Unknown=0, NotChecked=0, Total=1332 [2021-10-07 15:55:19,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20136 states. [2021-10-07 15:55:19,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20136 to 19310. [2021-10-07 15:55:19,980 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) [2021-10-07 15:55:20,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19310 states to 19310 states and 58652 transitions. [2021-10-07 15:55:20,032 INFO L78 Accepts]: Start accepts. Automaton has 19310 states and 58652 transitions. Word has length 54 [2021-10-07 15:55:20,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:55:20,032 INFO L470 AbstractCegarLoop]: Abstraction has 19310 states and 58652 transitions. [2021-10-07 15:55:20,032 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) [2021-10-07 15:55:20,032 INFO L276 IsEmpty]: Start isEmpty. Operand 19310 states and 58652 transitions. [2021-10-07 15:55:20,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:55:20,065 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:55:20,065 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] [2021-10-07 15:55:20,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (105)] Forceful destruction successful, exit code 0 [2021-10-07 15:55:20,266 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 [2021-10-07 15:55:20,266 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)] === [2021-10-07 15:55:20,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:55:20,267 INFO L82 PathProgramCache]: Analyzing trace with hash -444097364, now seen corresponding path program 16 times [2021-10-07 15:55:20,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:55:20,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603967442] [2021-10-07 15:55:20,268 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:55:20,269 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:55:20,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:55:20,270 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) [2021-10-07 15:55:20,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (106)] Waiting until timeout for monitored process [2021-10-07 15:55:23,020 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:55:23,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:55:23,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:55:23,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:55:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:23,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:55:24,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:24,338 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:55:24,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603967442] [2021-10-07 15:55:24,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603967442] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:55:24,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:55:24,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-07 15:55:24,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384796710] [2021-10-07 15:55:24,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-07 15:55:24,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:55:24,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-07 15:55:24,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-10-07 15:55:24,340 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) [2021-10-07 15:55:30,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:55:30,021 INFO L93 Difference]: Finished difference Result 23784 states and 70915 transitions. [2021-10-07 15:55:30,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-07 15:55:30,022 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 [2021-10-07 15:55:30,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:55:30,074 INFO L225 Difference]: With dead ends: 23784 [2021-10-07 15:55:30,075 INFO L226 Difference]: Without dead ends: 23304 [2021-10-07 15:55:30,075 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 2824.3ms TimeCoverageRelationStatistics Valid=279, Invalid=2373, Unknown=0, NotChecked=0, Total=2652 [2021-10-07 15:55:30,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23304 states. [2021-10-07 15:55:30,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23304 to 19294. [2021-10-07 15:55:30,416 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) [2021-10-07 15:55:30,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19294 states to 19294 states and 58604 transitions. [2021-10-07 15:55:30,466 INFO L78 Accepts]: Start accepts. Automaton has 19294 states and 58604 transitions. Word has length 54 [2021-10-07 15:55:30,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:55:30,466 INFO L470 AbstractCegarLoop]: Abstraction has 19294 states and 58604 transitions. [2021-10-07 15:55:30,466 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) [2021-10-07 15:55:30,466 INFO L276 IsEmpty]: Start isEmpty. Operand 19294 states and 58604 transitions. [2021-10-07 15:55:30,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:55:30,498 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:55:30,498 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] [2021-10-07 15:55:30,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (106)] Forceful destruction successful, exit code 0 [2021-10-07 15:55:30,699 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 [2021-10-07 15:55:30,699 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)] === [2021-10-07 15:55:30,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:55:30,700 INFO L82 PathProgramCache]: Analyzing trace with hash 427617642, now seen corresponding path program 17 times [2021-10-07 15:55:30,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:55:30,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460689218] [2021-10-07 15:55:30,701 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:55:30,701 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:55:30,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:55:30,703 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) [2021-10-07 15:55:30,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (107)] Waiting until timeout for monitored process [2021-10-07 15:55:33,558 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:55:33,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:55:33,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:55:33,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:55:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:33,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:55:34,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:34,801 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:55:34,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1460689218] [2021-10-07 15:55:34,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1460689218] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:55:34,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:55:34,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:55:34,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269106479] [2021-10-07 15:55:34,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:55:34,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:55:34,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:55:34,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:55:34,802 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) [2021-10-07 15:55:37,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:55:37,012 INFO L93 Difference]: Finished difference Result 21612 states and 65070 transitions. [2021-10-07 15:55:37,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-07 15:55:37,013 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 [2021-10-07 15:55:37,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:55:37,062 INFO L225 Difference]: With dead ends: 21612 [2021-10-07 15:55:37,062 INFO L226 Difference]: Without dead ends: 21200 [2021-10-07 15:55:37,062 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 990.3ms TimeCoverageRelationStatistics Valid=156, Invalid=1104, Unknown=0, NotChecked=0, Total=1260 [2021-10-07 15:55:37,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21200 states. [2021-10-07 15:55:37,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21200 to 19342. [2021-10-07 15:55:37,394 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) [2021-10-07 15:55:37,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19342 states to 19342 states and 58744 transitions. [2021-10-07 15:55:37,447 INFO L78 Accepts]: Start accepts. Automaton has 19342 states and 58744 transitions. Word has length 54 [2021-10-07 15:55:37,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:55:37,447 INFO L470 AbstractCegarLoop]: Abstraction has 19342 states and 58744 transitions. [2021-10-07 15:55:37,447 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) [2021-10-07 15:55:37,447 INFO L276 IsEmpty]: Start isEmpty. Operand 19342 states and 58744 transitions. [2021-10-07 15:55:37,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:55:37,480 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:55:37,480 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] [2021-10-07 15:55:37,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (107)] Forceful destruction successful, exit code 0 [2021-10-07 15:55:37,694 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 [2021-10-07 15:55:37,694 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)] === [2021-10-07 15:55:37,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:55:37,695 INFO L82 PathProgramCache]: Analyzing trace with hash -439916126, now seen corresponding path program 18 times [2021-10-07 15:55:37,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:55:37,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033641693] [2021-10-07 15:55:37,696 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:55:37,697 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:55:37,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:55:37,698 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) [2021-10-07 15:55:37,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (108)] Waiting until timeout for monitored process [2021-10-07 15:55:40,621 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:55:40,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:55:40,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:55:40,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:55:41,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:41,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:55:41,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:41,859 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:55:41,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033641693] [2021-10-07 15:55:41,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033641693] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:55:41,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:55:41,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:55:41,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75455082] [2021-10-07 15:55:41,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:55:41,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:55:41,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:55:41,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:55:41,861 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) [2021-10-07 15:55:45,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:55:45,231 INFO L93 Difference]: Finished difference Result 20266 states and 60333 transitions. [2021-10-07 15:55:45,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-07 15:55:45,232 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 [2021-10-07 15:55:45,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:55:45,277 INFO L225 Difference]: With dead ends: 20266 [2021-10-07 15:55:45,277 INFO L226 Difference]: Without dead ends: 19900 [2021-10-07 15:55:45,277 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 1610.5ms TimeCoverageRelationStatistics Valid=303, Invalid=2147, Unknown=0, NotChecked=0, Total=2450 [2021-10-07 15:55:45,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19900 states. [2021-10-07 15:55:45,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19900 to 17716. [2021-10-07 15:55:45,576 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) [2021-10-07 15:55:45,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17716 states to 17716 states and 53514 transitions. [2021-10-07 15:55:45,623 INFO L78 Accepts]: Start accepts. Automaton has 17716 states and 53514 transitions. Word has length 54 [2021-10-07 15:55:45,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:55:45,623 INFO L470 AbstractCegarLoop]: Abstraction has 17716 states and 53514 transitions. [2021-10-07 15:55:45,623 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) [2021-10-07 15:55:45,623 INFO L276 IsEmpty]: Start isEmpty. Operand 17716 states and 53514 transitions. [2021-10-07 15:55:45,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:55:45,652 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:55:45,653 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] [2021-10-07 15:55:45,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (108)] Forceful destruction successful, exit code 0 [2021-10-07 15:55:45,858 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 [2021-10-07 15:55:45,859 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)] === [2021-10-07 15:55:45,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:55:45,859 INFO L82 PathProgramCache]: Analyzing trace with hash 13488830, now seen corresponding path program 19 times [2021-10-07 15:55:45,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:55:45,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11371241] [2021-10-07 15:55:45,860 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:55:45,860 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:55:45,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:55:45,862 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) [2021-10-07 15:55:45,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (109)] Waiting until timeout for monitored process [2021-10-07 15:55:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:55:48,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:55:48,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:55:49,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:49,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:55:50,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:50,094 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:55:50,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11371241] [2021-10-07 15:55:50,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11371241] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:55:50,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:55:50,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:55:50,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891977424] [2021-10-07 15:55:50,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:55:50,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:55:50,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:55:50,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:55:50,095 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) [2021-10-07 15:55:53,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:55:53,213 INFO L93 Difference]: Finished difference Result 20080 states and 59942 transitions. [2021-10-07 15:55:53,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-07 15:55:53,213 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 [2021-10-07 15:55:53,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:55:53,399 INFO L225 Difference]: With dead ends: 20080 [2021-10-07 15:55:53,399 INFO L226 Difference]: Without dead ends: 19760 [2021-10-07 15:55:53,400 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1521.2ms TimeCoverageRelationStatistics Valid=316, Invalid=2134, Unknown=0, NotChecked=0, Total=2450 [2021-10-07 15:55:53,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19760 states. [2021-10-07 15:55:53,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19760 to 17692. [2021-10-07 15:55:53,681 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) [2021-10-07 15:55:53,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17692 states to 17692 states and 53456 transitions. [2021-10-07 15:55:53,728 INFO L78 Accepts]: Start accepts. Automaton has 17692 states and 53456 transitions. Word has length 54 [2021-10-07 15:55:53,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:55:53,728 INFO L470 AbstractCegarLoop]: Abstraction has 17692 states and 53456 transitions. [2021-10-07 15:55:53,728 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) [2021-10-07 15:55:53,728 INFO L276 IsEmpty]: Start isEmpty. Operand 17692 states and 53456 transitions. [2021-10-07 15:55:53,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:55:53,757 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:55:53,757 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] [2021-10-07 15:55:53,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (109)] Forceful destruction successful, exit code 0 [2021-10-07 15:55:53,957 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 [2021-10-07 15:55:53,958 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)] === [2021-10-07 15:55:53,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:55:53,959 INFO L82 PathProgramCache]: Analyzing trace with hash -735793312, now seen corresponding path program 20 times [2021-10-07 15:55:53,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:55:53,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907745700] [2021-10-07 15:55:53,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:55:53,960 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:55:53,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:55:53,961 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) [2021-10-07 15:55:53,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (110)] Waiting until timeout for monitored process [2021-10-07 15:55:56,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:55:56,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:55:56,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:55:56,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:55:57,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:57,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:55:58,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:55:58,130 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:55:58,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907745700] [2021-10-07 15:55:58,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907745700] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:55:58,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:55:58,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:55:58,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984800438] [2021-10-07 15:55:58,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:55:58,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:55:58,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:55:58,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:55:58,131 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) [2021-10-07 15:56:00,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:56:00,675 INFO L93 Difference]: Finished difference Result 19098 states and 57155 transitions. [2021-10-07 15:56:00,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-07 15:56:00,676 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 [2021-10-07 15:56:00,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:56:00,719 INFO L225 Difference]: With dead ends: 19098 [2021-10-07 15:56:00,719 INFO L226 Difference]: Without dead ends: 18658 [2021-10-07 15:56:00,719 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1185.0ms TimeCoverageRelationStatistics Valid=182, Invalid=1378, Unknown=0, NotChecked=0, Total=1560 [2021-10-07 15:56:00,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18658 states. [2021-10-07 15:56:01,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18658 to 17596. [2021-10-07 15:56:01,138 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) [2021-10-07 15:56:01,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17596 states to 17596 states and 53167 transitions. [2021-10-07 15:56:01,183 INFO L78 Accepts]: Start accepts. Automaton has 17596 states and 53167 transitions. Word has length 54 [2021-10-07 15:56:01,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:56:01,183 INFO L470 AbstractCegarLoop]: Abstraction has 17596 states and 53167 transitions. [2021-10-07 15:56:01,183 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) [2021-10-07 15:56:01,183 INFO L276 IsEmpty]: Start isEmpty. Operand 17596 states and 53167 transitions. [2021-10-07 15:56:01,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:56:01,212 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:56:01,212 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] [2021-10-07 15:56:01,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (110)] Forceful destruction successful, exit code 0 [2021-10-07 15:56:01,414 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 [2021-10-07 15:56:01,415 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)] === [2021-10-07 15:56:01,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:56:01,416 INFO L82 PathProgramCache]: Analyzing trace with hash -158179550, now seen corresponding path program 21 times [2021-10-07 15:56:01,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:56:01,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431134764] [2021-10-07 15:56:01,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:56:01,417 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:56:01,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:56:01,418 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) [2021-10-07 15:56:01,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (111)] Waiting until timeout for monitored process [2021-10-07 15:56:04,263 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:56:04,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:56:04,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 15:56:04,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:56:04,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:04,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:56:05,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:05,114 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:56:05,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431134764] [2021-10-07 15:56:05,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431134764] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:56:05,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:56:05,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2021-10-07 15:56:05,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238006089] [2021-10-07 15:56:05,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-07 15:56:05,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:56:05,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-07 15:56:05,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-10-07 15:56:05,115 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) [2021-10-07 15:56:07,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:56:07,575 INFO L93 Difference]: Finished difference Result 19180 states and 57868 transitions. [2021-10-07 15:56:07,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-07 15:56:07,576 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 [2021-10-07 15:56:07,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:56:07,623 INFO L225 Difference]: With dead ends: 19180 [2021-10-07 15:56:07,624 INFO L226 Difference]: Without dead ends: 19180 [2021-10-07 15:56:07,624 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 1167.6ms TimeCoverageRelationStatistics Valid=247, Invalid=1313, Unknown=0, NotChecked=0, Total=1560 [2021-10-07 15:56:07,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19180 states. [2021-10-07 15:56:07,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19180 to 17636. [2021-10-07 15:56:07,935 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) [2021-10-07 15:56:08,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17636 states to 17636 states and 53293 transitions. [2021-10-07 15:56:08,196 INFO L78 Accepts]: Start accepts. Automaton has 17636 states and 53293 transitions. Word has length 54 [2021-10-07 15:56:08,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:56:08,196 INFO L470 AbstractCegarLoop]: Abstraction has 17636 states and 53293 transitions. [2021-10-07 15:56:08,197 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) [2021-10-07 15:56:08,197 INFO L276 IsEmpty]: Start isEmpty. Operand 17636 states and 53293 transitions. [2021-10-07 15:56:08,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:56:08,227 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:56:08,227 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] [2021-10-07 15:56:08,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (111)] Forceful destruction successful, exit code 0 [2021-10-07 15:56:08,427 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 [2021-10-07 15:56:08,428 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)] === [2021-10-07 15:56:08,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:56:08,429 INFO L82 PathProgramCache]: Analyzing trace with hash -197601596, now seen corresponding path program 22 times [2021-10-07 15:56:08,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:56:08,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881332670] [2021-10-07 15:56:08,430 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:56:08,430 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:56:08,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:56:08,431 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) [2021-10-07 15:56:08,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (112)] Waiting until timeout for monitored process [2021-10-07 15:56:11,241 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:56:11,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:56:11,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-07 15:56:11,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:56:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:11,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:56:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:11,918 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:56:11,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881332670] [2021-10-07 15:56:11,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881332670] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:56:11,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:56:11,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-10-07 15:56:11,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646757452] [2021-10-07 15:56:11,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-07 15:56:11,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:56:11,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-07 15:56:11,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-10-07 15:56:11,919 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) [2021-10-07 15:56:13,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:56:13,915 INFO L93 Difference]: Finished difference Result 18938 states and 57147 transitions. [2021-10-07 15:56:13,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-07 15:56:13,916 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 [2021-10-07 15:56:13,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:56:13,958 INFO L225 Difference]: With dead ends: 18938 [2021-10-07 15:56:13,958 INFO L226 Difference]: Without dead ends: 18938 [2021-10-07 15:56:13,959 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 786.4ms TimeCoverageRelationStatistics Valid=204, Invalid=1056, Unknown=0, NotChecked=0, Total=1260 [2021-10-07 15:56:13,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18938 states. [2021-10-07 15:56:14,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18938 to 17660. [2021-10-07 15:56:14,275 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) [2021-10-07 15:56:14,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17660 states to 17660 states and 53365 transitions. [2021-10-07 15:56:14,322 INFO L78 Accepts]: Start accepts. Automaton has 17660 states and 53365 transitions. Word has length 54 [2021-10-07 15:56:14,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:56:14,322 INFO L470 AbstractCegarLoop]: Abstraction has 17660 states and 53365 transitions. [2021-10-07 15:56:14,322 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) [2021-10-07 15:56:14,323 INFO L276 IsEmpty]: Start isEmpty. Operand 17660 states and 53365 transitions. [2021-10-07 15:56:14,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:56:14,495 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:56:14,496 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] [2021-10-07 15:56:14,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (112)] Forceful destruction successful, exit code 0 [2021-10-07 15:56:14,696 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 [2021-10-07 15:56:14,696 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)] === [2021-10-07 15:56:14,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:56:14,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1563605950, now seen corresponding path program 23 times [2021-10-07 15:56:14,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:56:14,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976157996] [2021-10-07 15:56:14,698 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:56:14,698 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:56:14,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:56:14,700 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) [2021-10-07 15:56:14,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (113)] Waiting until timeout for monitored process [2021-10-07 15:56:17,622 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:56:17,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:56:17,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:56:17,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:56:18,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:18,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:56:18,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:18,894 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:56:18,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976157996] [2021-10-07 15:56:18,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976157996] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:56:18,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:56:18,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:56:18,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508774806] [2021-10-07 15:56:18,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:56:18,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:56:18,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:56:18,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:56:18,896 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) [2021-10-07 15:56:21,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:56:21,214 INFO L93 Difference]: Finished difference Result 19086 states and 57358 transitions. [2021-10-07 15:56:21,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-07 15:56:21,215 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 [2021-10-07 15:56:21,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:56:21,256 INFO L225 Difference]: With dead ends: 19086 [2021-10-07 15:56:21,257 INFO L226 Difference]: Without dead ends: 18744 [2021-10-07 15:56:21,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1257.6ms TimeCoverageRelationStatistics Valid=189, Invalid=1217, Unknown=0, NotChecked=0, Total=1406 [2021-10-07 15:56:21,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18744 states. [2021-10-07 15:56:21,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18744 to 17668. [2021-10-07 15:56:21,558 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) [2021-10-07 15:56:21,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17668 states to 17668 states and 53373 transitions. [2021-10-07 15:56:21,605 INFO L78 Accepts]: Start accepts. Automaton has 17668 states and 53373 transitions. Word has length 54 [2021-10-07 15:56:21,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:56:21,605 INFO L470 AbstractCegarLoop]: Abstraction has 17668 states and 53373 transitions. [2021-10-07 15:56:21,605 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) [2021-10-07 15:56:21,605 INFO L276 IsEmpty]: Start isEmpty. Operand 17668 states and 53373 transitions. [2021-10-07 15:56:21,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:56:21,634 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:56:21,634 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] [2021-10-07 15:56:21,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (113)] Forceful destruction successful, exit code 0 [2021-10-07 15:56:21,838 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 [2021-10-07 15:56:21,839 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)] === [2021-10-07 15:56:21,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:56:21,839 INFO L82 PathProgramCache]: Analyzing trace with hash 252135334, now seen corresponding path program 24 times [2021-10-07 15:56:21,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:56:21,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129439106] [2021-10-07 15:56:21,840 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:56:21,840 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:56:21,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:56:21,842 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) [2021-10-07 15:56:21,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (114)] Waiting until timeout for monitored process [2021-10-07 15:56:24,897 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:56:24,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:56:24,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:56:24,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:56:25,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:25,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:56:26,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:26,157 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:56:26,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2129439106] [2021-10-07 15:56:26,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2129439106] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:56:26,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:56:26,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:56:26,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995071694] [2021-10-07 15:56:26,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:56:26,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:56:26,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:56:26,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:56:26,159 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) [2021-10-07 15:56:28,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:56:28,479 INFO L93 Difference]: Finished difference Result 18708 states and 56359 transitions. [2021-10-07 15:56:28,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-07 15:56:28,480 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 [2021-10-07 15:56:28,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:56:28,520 INFO L225 Difference]: With dead ends: 18708 [2021-10-07 15:56:28,520 INFO L226 Difference]: Without dead ends: 18428 [2021-10-07 15:56:28,520 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1214.5ms TimeCoverageRelationStatistics Valid=186, Invalid=1220, Unknown=0, NotChecked=0, Total=1406 [2021-10-07 15:56:28,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18428 states. [2021-10-07 15:56:28,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18428 to 17652. [2021-10-07 15:56:28,806 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) [2021-10-07 15:56:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17652 states to 17652 states and 53333 transitions. [2021-10-07 15:56:28,853 INFO L78 Accepts]: Start accepts. Automaton has 17652 states and 53333 transitions. Word has length 54 [2021-10-07 15:56:28,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:56:28,854 INFO L470 AbstractCegarLoop]: Abstraction has 17652 states and 53333 transitions. [2021-10-07 15:56:28,854 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) [2021-10-07 15:56:28,854 INFO L276 IsEmpty]: Start isEmpty. Operand 17652 states and 53333 transitions. [2021-10-07 15:56:28,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:56:28,882 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:56:28,882 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] [2021-10-07 15:56:28,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (114)] Forceful destruction successful, exit code 0 [2021-10-07 15:56:29,083 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 [2021-10-07 15:56:29,083 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)] === [2021-10-07 15:56:29,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:56:29,084 INFO L82 PathProgramCache]: Analyzing trace with hash 2029080260, now seen corresponding path program 25 times [2021-10-07 15:56:29,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:56:29,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810598533] [2021-10-07 15:56:29,085 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:56:29,085 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:56:29,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:56:29,086 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) [2021-10-07 15:56:29,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (115)] Waiting until timeout for monitored process [2021-10-07 15:56:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:56:32,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:56:32,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:56:32,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:32,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:56:33,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:33,438 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:56:33,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810598533] [2021-10-07 15:56:33,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810598533] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:56:33,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:56:33,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:56:33,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713811855] [2021-10-07 15:56:33,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:56:33,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:56:33,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:56:33,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:56:33,440 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) [2021-10-07 15:56:35,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:56:35,356 INFO L93 Difference]: Finished difference Result 18706 states and 56345 transitions. [2021-10-07 15:56:35,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-07 15:56:35,357 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 [2021-10-07 15:56:35,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:56:35,401 INFO L225 Difference]: With dead ends: 18706 [2021-10-07 15:56:35,401 INFO L226 Difference]: Without dead ends: 18306 [2021-10-07 15:56:35,402 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 962.8ms TimeCoverageRelationStatistics Valid=131, Invalid=925, Unknown=0, NotChecked=0, Total=1056 [2021-10-07 15:56:35,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18306 states. [2021-10-07 15:56:35,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18306 to 17628. [2021-10-07 15:56:35,832 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) [2021-10-07 15:56:35,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17628 states to 17628 states and 53269 transitions. [2021-10-07 15:56:35,880 INFO L78 Accepts]: Start accepts. Automaton has 17628 states and 53269 transitions. Word has length 54 [2021-10-07 15:56:35,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:56:35,880 INFO L470 AbstractCegarLoop]: Abstraction has 17628 states and 53269 transitions. [2021-10-07 15:56:35,880 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) [2021-10-07 15:56:35,880 INFO L276 IsEmpty]: Start isEmpty. Operand 17628 states and 53269 transitions. [2021-10-07 15:56:35,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:56:35,909 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:56:35,909 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] [2021-10-07 15:56:35,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (115)] Forceful destruction successful, exit code 0 [2021-10-07 15:56:36,109 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 [2021-10-07 15:56:36,110 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)] === [2021-10-07 15:56:36,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:56:36,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1320165278, now seen corresponding path program 26 times [2021-10-07 15:56:36,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:56:36,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752453887] [2021-10-07 15:56:36,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:56:36,112 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:56:36,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:56:36,113 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) [2021-10-07 15:56:36,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (116)] Waiting until timeout for monitored process [2021-10-07 15:56:39,282 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:56:39,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:56:39,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:56:39,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:56:39,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:39,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:56:40,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:40,509 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:56:40,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752453887] [2021-10-07 15:56:40,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752453887] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:56:40,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:56:40,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:56:40,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34636821] [2021-10-07 15:56:40,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:56:40,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:56:40,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:56:40,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:56:40,511 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) [2021-10-07 15:56:42,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:56:42,256 INFO L93 Difference]: Finished difference Result 19492 states and 58586 transitions. [2021-10-07 15:56:42,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-07 15:56:42,257 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 [2021-10-07 15:56:42,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:56:42,302 INFO L225 Difference]: With dead ends: 19492 [2021-10-07 15:56:42,302 INFO L226 Difference]: Without dead ends: 19080 [2021-10-07 15:56:42,302 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 897.5ms TimeCoverageRelationStatistics Valid=142, Invalid=980, Unknown=0, NotChecked=0, Total=1122 [2021-10-07 15:56:42,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19080 states. [2021-10-07 15:56:42,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19080 to 17676. [2021-10-07 15:56:42,728 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) [2021-10-07 15:56:42,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17676 states to 17676 states and 53409 transitions. [2021-10-07 15:56:42,773 INFO L78 Accepts]: Start accepts. Automaton has 17676 states and 53409 transitions. Word has length 54 [2021-10-07 15:56:42,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:56:42,773 INFO L470 AbstractCegarLoop]: Abstraction has 17676 states and 53409 transitions. [2021-10-07 15:56:42,774 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) [2021-10-07 15:56:42,774 INFO L276 IsEmpty]: Start isEmpty. Operand 17676 states and 53409 transitions. [2021-10-07 15:56:42,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:56:42,802 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:56:42,802 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] [2021-10-07 15:56:42,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (116)] Forceful destruction successful, exit code 0 [2021-10-07 15:56:43,008 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 [2021-10-07 15:56:43,009 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)] === [2021-10-07 15:56:43,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:56:43,009 INFO L82 PathProgramCache]: Analyzing trace with hash -2143310870, now seen corresponding path program 27 times [2021-10-07 15:56:43,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:56:43,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938104642] [2021-10-07 15:56:43,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:56:43,011 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:56:43,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:56:43,012 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) [2021-10-07 15:56:43,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (117)] Waiting until timeout for monitored process [2021-10-07 15:56:46,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:56:46,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:56:46,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:56:46,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:56:46,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:46,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:56:47,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:47,483 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:56:47,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938104642] [2021-10-07 15:56:47,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938104642] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:56:47,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:56:47,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:56:47,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779725151] [2021-10-07 15:56:47,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:56:47,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:56:47,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:56:47,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:56:47,485 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) [2021-10-07 15:56:49,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:56:49,678 INFO L93 Difference]: Finished difference Result 19466 states and 58292 transitions. [2021-10-07 15:56:49,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-07 15:56:49,679 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 [2021-10-07 15:56:49,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:56:49,725 INFO L225 Difference]: With dead ends: 19466 [2021-10-07 15:56:49,725 INFO L226 Difference]: Without dead ends: 19124 [2021-10-07 15:56:49,725 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1199.5ms TimeCoverageRelationStatistics Valid=211, Invalid=1349, Unknown=0, NotChecked=0, Total=1560 [2021-10-07 15:56:49,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19124 states. [2021-10-07 15:56:50,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19124 to 17708. [2021-10-07 15:56:50,150 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) [2021-10-07 15:56:50,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17708 states to 17708 states and 53489 transitions. [2021-10-07 15:56:50,196 INFO L78 Accepts]: Start accepts. Automaton has 17708 states and 53489 transitions. Word has length 54 [2021-10-07 15:56:50,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:56:50,196 INFO L470 AbstractCegarLoop]: Abstraction has 17708 states and 53489 transitions. [2021-10-07 15:56:50,196 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) [2021-10-07 15:56:50,197 INFO L276 IsEmpty]: Start isEmpty. Operand 17708 states and 53489 transitions. [2021-10-07 15:56:50,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:56:50,226 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:56:50,226 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] [2021-10-07 15:56:50,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (117)] Forceful destruction successful, exit code 0 [2021-10-07 15:56:50,427 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 [2021-10-07 15:56:50,427 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)] === [2021-10-07 15:56:50,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:56:50,428 INFO L82 PathProgramCache]: Analyzing trace with hash -327569586, now seen corresponding path program 28 times [2021-10-07 15:56:50,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:56:50,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120822995] [2021-10-07 15:56:50,430 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:56:50,430 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:56:50,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:56:50,431 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) [2021-10-07 15:56:50,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (118)] Waiting until timeout for monitored process [2021-10-07 15:56:53,607 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:56:53,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:56:53,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:56:53,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:56:54,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:54,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:56:54,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:56:54,873 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:56:54,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120822995] [2021-10-07 15:56:54,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120822995] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:56:54,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:56:54,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:56:54,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217386438] [2021-10-07 15:56:54,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:56:54,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:56:54,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:56:54,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:56:54,875 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) [2021-10-07 15:56:56,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:56:56,778 INFO L93 Difference]: Finished difference Result 19050 states and 57184 transitions. [2021-10-07 15:56:56,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:56:56,779 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 [2021-10-07 15:56:56,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:56:56,826 INFO L225 Difference]: With dead ends: 19050 [2021-10-07 15:56:56,826 INFO L226 Difference]: Without dead ends: 18770 [2021-10-07 15:56:56,827 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1015.1ms TimeCoverageRelationStatistics Valid=196, Invalid=1210, Unknown=0, NotChecked=0, Total=1406 [2021-10-07 15:56:56,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18770 states. [2021-10-07 15:56:57,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18770 to 17692. [2021-10-07 15:56:57,255 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) [2021-10-07 15:56:57,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17692 states to 17692 states and 53449 transitions. [2021-10-07 15:56:57,303 INFO L78 Accepts]: Start accepts. Automaton has 17692 states and 53449 transitions. Word has length 54 [2021-10-07 15:56:57,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:56:57,303 INFO L470 AbstractCegarLoop]: Abstraction has 17692 states and 53449 transitions. [2021-10-07 15:56:57,303 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) [2021-10-07 15:56:57,303 INFO L276 IsEmpty]: Start isEmpty. Operand 17692 states and 53449 transitions. [2021-10-07 15:56:57,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:56:57,334 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:56:57,334 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] [2021-10-07 15:56:57,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (118)] Forceful destruction successful, exit code 0 [2021-10-07 15:56:57,534 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 [2021-10-07 15:56:57,535 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)] === [2021-10-07 15:56:57,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:56:57,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1449375340, now seen corresponding path program 29 times [2021-10-07 15:56:57,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:56:57,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015705686] [2021-10-07 15:56:57,537 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:56:57,537 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:56:57,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:56:57,539 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) [2021-10-07 15:56:57,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (119)] Waiting until timeout for monitored process [2021-10-07 15:57:00,737 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:57:00,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:57:00,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-07 15:57:00,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:57:01,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:01,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:57:01,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:01,994 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:57:01,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015705686] [2021-10-07 15:57:01,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015705686] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:57:01,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:57:01,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 15:57:01,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727221218] [2021-10-07 15:57:01,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 15:57:01,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:57:01,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 15:57:01,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:57:01,997 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) [2021-10-07 15:57:03,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:57:03,915 INFO L93 Difference]: Finished difference Result 18754 states and 56311 transitions. [2021-10-07 15:57:03,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:57:03,916 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 [2021-10-07 15:57:03,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:57:03,960 INFO L225 Difference]: With dead ends: 18754 [2021-10-07 15:57:03,960 INFO L226 Difference]: Without dead ends: 18346 [2021-10-07 15:57:03,960 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1047.6ms TimeCoverageRelationStatistics Valid=152, Invalid=1108, Unknown=0, NotChecked=0, Total=1260 [2021-10-07 15:57:03,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18346 states. [2021-10-07 15:57:04,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18346 to 17588. [2021-10-07 15:57:04,377 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) [2021-10-07 15:57:04,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17588 states to 17588 states and 53139 transitions. [2021-10-07 15:57:04,424 INFO L78 Accepts]: Start accepts. Automaton has 17588 states and 53139 transitions. Word has length 54 [2021-10-07 15:57:04,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:57:04,424 INFO L470 AbstractCegarLoop]: Abstraction has 17588 states and 53139 transitions. [2021-10-07 15:57:04,424 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) [2021-10-07 15:57:04,424 INFO L276 IsEmpty]: Start isEmpty. Operand 17588 states and 53139 transitions. [2021-10-07 15:57:04,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:57:04,454 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:57:04,454 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] [2021-10-07 15:57:04,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (119)] Forceful destruction successful, exit code 0 [2021-10-07 15:57:04,654 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 [2021-10-07 15:57:04,655 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)] === [2021-10-07 15:57:04,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:57:04,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1026209718, now seen corresponding path program 30 times [2021-10-07 15:57:04,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:57:04,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103859351] [2021-10-07 15:57:04,657 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:57:04,657 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:57:04,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:57:04,658 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) [2021-10-07 15:57:04,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (120)] Waiting until timeout for monitored process [2021-10-07 15:57:07,769 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:57:07,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:57:07,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 15:57:07,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:57:08,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:08,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:57:08,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:08,658 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:57:08,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103859351] [2021-10-07 15:57:08,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103859351] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:57:08,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:57:08,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 21 [2021-10-07 15:57:08,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82918371] [2021-10-07 15:57:08,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-07 15:57:08,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:57:08,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-07 15:57:08,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2021-10-07 15:57:08,660 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) [2021-10-07 15:57:11,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:57:11,359 INFO L93 Difference]: Finished difference Result 18972 states and 57154 transitions. [2021-10-07 15:57:11,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-07 15:57:11,360 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 [2021-10-07 15:57:11,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:57:11,406 INFO L225 Difference]: With dead ends: 18972 [2021-10-07 15:57:11,406 INFO L226 Difference]: Without dead ends: 18972 [2021-10-07 15:57:11,406 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 1227.4ms TimeCoverageRelationStatistics Valid=278, Invalid=1702, Unknown=0, NotChecked=0, Total=1980 [2021-10-07 15:57:11,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18972 states. [2021-10-07 15:57:11,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18972 to 17580. [2021-10-07 15:57:11,836 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) [2021-10-07 15:57:11,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17580 states to 17580 states and 53115 transitions. [2021-10-07 15:57:11,880 INFO L78 Accepts]: Start accepts. Automaton has 17580 states and 53115 transitions. Word has length 54 [2021-10-07 15:57:11,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:57:11,880 INFO L470 AbstractCegarLoop]: Abstraction has 17580 states and 53115 transitions. [2021-10-07 15:57:11,881 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) [2021-10-07 15:57:11,881 INFO L276 IsEmpty]: Start isEmpty. Operand 17580 states and 53115 transitions. [2021-10-07 15:57:11,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-07 15:57:11,909 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:57:11,909 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] [2021-10-07 15:57:11,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (120)] Forceful destruction successful, exit code 0 [2021-10-07 15:57:12,109 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 [2021-10-07 15:57:12,110 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)] === [2021-10-07 15:57:12,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:57:12,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1065631764, now seen corresponding path program 31 times [2021-10-07 15:57:12,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:57:12,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436743997] [2021-10-07 15:57:12,112 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:57:12,112 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:57:12,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:57:12,115 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) [2021-10-07 15:57:12,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (121)] Waiting until timeout for monitored process [2021-10-07 15:57:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:57:15,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-07 15:57:15,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:57:15,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:15,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:57:16,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:16,068 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:57:16,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436743997] [2021-10-07 15:57:16,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436743997] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:57:16,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:57:16,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2021-10-07 15:57:16,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206739734] [2021-10-07 15:57:16,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-07 15:57:16,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:57:16,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-07 15:57:16,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-10-07 15:57:16,071 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) Received shutdown request... [2021-10-07 15:57:18,230 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (121)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-07 15:57:18,230 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 [2021-10-07 15:57:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-07 15:57:18,234 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 15:57:18,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (121)] Ended with exit code 0 [2021-10-07 15:57:18,448 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 [2021-10-07 15:57:18,450 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). [2021-10-07 15:57:18,453 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-07 15:57:18,453 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-07 15:57:18,453 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-07 15:57:18,453 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-07 15:57:18,453 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-07 15:57:18,453 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-07 15:57:18,454 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-07 15:57:18,454 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-07 15:57:18,454 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-07 15:57:18,454 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-07 15:57:18,454 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-07 15:57:18,454 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-07 15:57:18,454 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 15:57:18,454 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 15:57:18,455 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 15:57:18,455 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-07 15:57:18,460 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 15:57:18,460 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 15:57:18,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:57:18 BasicIcfg [2021-10-07 15:57:18,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 15:57:18,463 INFO L168 Benchmark]: Toolchain (without parser) took 726313.02 ms. Allocated memory was 158.3 MB in the beginning and 6.9 GB in the end (delta: 6.8 GB). Free memory was 132.1 MB in the beginning and 5.8 GB in the end (delta: -5.7 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-10-07 15:57:18,463 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 158.3 MB. Free memory is still 130.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 15:57:18,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.58 ms. Allocated memory is still 158.3 MB. Free memory was 131.7 MB in the beginning and 119.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-07 15:57:18,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.73 ms. Allocated memory is still 158.3 MB. Free memory was 119.6 MB in the beginning and 117.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:57:18,464 INFO L168 Benchmark]: Boogie Preprocessor took 81.55 ms. Allocated memory is still 158.3 MB. Free memory was 117.5 MB in the beginning and 115.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:57:18,464 INFO L168 Benchmark]: RCFGBuilder took 772.97 ms. Allocated memory is still 158.3 MB. Free memory was 115.8 MB in the beginning and 131.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 8.0 GB. [2021-10-07 15:57:18,464 INFO L168 Benchmark]: TraceAbstraction took 724911.45 ms. Allocated memory was 158.3 MB in the beginning and 6.9 GB in the end (delta: 6.8 GB). Free memory was 131.1 MB in the beginning and 5.8 GB in the end (delta: -5.7 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-10-07 15:57:18,466 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 158.3 MB. Free memory is still 130.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 438.58 ms. Allocated memory is still 158.3 MB. Free memory was 131.7 MB in the beginning and 119.7 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 89.73 ms. Allocated memory is still 158.3 MB. Free memory was 119.6 MB in the beginning and 117.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 81.55 ms. Allocated memory is still 158.3 MB. Free memory was 117.5 MB in the beginning and 115.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 772.97 ms. Allocated memory is still 158.3 MB. Free memory was 115.8 MB in the beginning and 131.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 724911.45 ms. Allocated memory was 158.3 MB in the beginning and 6.9 GB in the end (delta: 6.8 GB). Free memory was 131.1 MB in the beginning and 5.8 GB in the end (delta: -5.7 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14383.5ms, 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: 592, positive: 113, positive conditional: 0, positive unconditional: 113, negative: 479, negative conditional: 0, negative unconditional: 479, 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 constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - 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 constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - 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 constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - 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 constructing difference of abstraction (17580states) and FLOYD_HOARE automaton (currently 28 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (6584 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 356 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 724611.1ms, OverallIterations: 120, TraceHistogramMax: 1, EmptinessCheckTime: 4612.3ms, AutomataDifference: 303844.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15834.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 20464 SDtfs, 45758 SDslu, 191543 SDs, 0 SdLazy, 156979 SolverSat, 5818 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 149707.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13796 GetRequests, 10045 SyntacticMatches, 0 SemanticMatches, 3751 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25558 ImplicationChecksByTransitivity, 147188.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=24699occurred in iteration=0, InterpolantAutomatonStates: 2573, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 67212.2ms AutomataMinimizationTime, 119 MinimizatonAttempts, 259804 StatesRemovedByMinimization, 108 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1598.8ms SsaConstructionTime, 15617.3ms SatisfiabilityAnalysisTime, 127759.8ms InterpolantComputationTime, 6098 NumberOfCodeBlocks, 6098 NumberOfCodeBlocksAsserted, 120 NumberOfCheckSat, 11956 ConstructedInterpolants, 2 QuantifiedInterpolants, 76791 SizeOfPredicates, 1995 NumberOfNonLiveVariables, 17114 ConjunctsInSsa, 1807 ConjunctsInUnsatCore, 240 InterpolantComputations, 240 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