/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/chl-name-comparator-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 20:04:28,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 20:04:28,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 20:04:28,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 20:04:28,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 20:04:28,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 20:04:28,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 20:04:28,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 20:04:28,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 20:04:28,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 20:04:28,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 20:04:28,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 20:04:28,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 20:04:28,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 20:04:28,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 20:04:28,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 20:04:28,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 20:04:28,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 20:04:28,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 20:04:28,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 20:04:28,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 20:04:28,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 20:04:28,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 20:04:28,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 20:04:28,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 20:04:28,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 20:04:28,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 20:04:28,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 20:04:28,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 20:04:28,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 20:04:28,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 20:04:28,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 20:04:28,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 20:04:28,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 20:04:28,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 20:04:28,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 20:04:28,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 20:04:28,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 20:04:28,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 20:04:28,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 20:04:28,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 20:04:28,176 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-13 20:04:28,214 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 20:04:28,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 20:04:28,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 20:04:28,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 20:04:28,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 20:04:28,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 20:04:28,218 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 20:04:28,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 20:04:28,218 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 20:04:28,218 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 20:04:28,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 20:04:28,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 20:04:28,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 20:04:28,219 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 20:04:28,220 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 20:04:28,220 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 20:04:28,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 20:04:28,220 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 20:04:28,220 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 20:04:28,221 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 20:04:28,221 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 20:04:28,221 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 20:04:28,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 20:04:28,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 20:04:28,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 20:04:28,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 20:04:28,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 20:04:28,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 20:04:28,223 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 20:04:28,223 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 20:04:28,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 20:04:28,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 20:04:28,224 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 20:04:28,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 20:04:28,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 20:04:28,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 20:04:28,669 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 20:04:28,669 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 20:04:28,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c [2021-10-13 20:04:28,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c86ecf09/39a36af90546488fbec47a6b52c905ce/FLAGd5af96278 [2021-10-13 20:04:29,393 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 20:04:29,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c [2021-10-13 20:04:29,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c86ecf09/39a36af90546488fbec47a6b52c905ce/FLAGd5af96278 [2021-10-13 20:04:29,740 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c86ecf09/39a36af90546488fbec47a6b52c905ce [2021-10-13 20:04:29,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 20:04:29,755 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 20:04:29,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 20:04:29,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 20:04:29,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 20:04:29,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:04:29" (1/1) ... [2021-10-13 20:04:29,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6153934b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:29, skipping insertion in model container [2021-10-13 20:04:29,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:04:29" (1/1) ... [2021-10-13 20:04:29,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 20:04:29,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 20:04:30,018 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/chl-name-comparator-subst.wvr.c[4836,4849] [2021-10-13 20:04:30,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 20:04:30,047 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 20:04:30,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 20:04:30,089 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/chl-name-comparator-subst.wvr.c[4836,4849] [2021-10-13 20:04:30,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 20:04:30,118 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 20:04:30,202 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/chl-name-comparator-subst.wvr.c[4836,4849] [2021-10-13 20:04:30,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 20:04:30,251 INFO L208 MainTranslator]: Completed translation [2021-10-13 20:04:30,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30 WrapperNode [2021-10-13 20:04:30,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 20:04:30,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 20:04:30,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 20:04:30,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 20:04:30,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2021-10-13 20:04:30,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2021-10-13 20:04:30,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 20:04:30,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 20:04:30,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 20:04:30,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 20:04:30,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2021-10-13 20:04:30,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2021-10-13 20:04:30,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2021-10-13 20:04:30,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2021-10-13 20:04:30,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2021-10-13 20:04:30,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2021-10-13 20:04:30,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2021-10-13 20:04:30,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 20:04:30,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 20:04:30,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 20:04:30,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 20:04:30,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (1/1) ... [2021-10-13 20:04:30,427 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 20:04:30,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 20:04:30,472 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) [2021-10-13 20:04:30,511 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 [2021-10-13 20:04:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 20:04:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 20:04:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 20:04:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 20:04:30,569 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 20:04:30,569 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 20:04:30,571 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 20:04:30,572 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-13 20:04:30,572 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-13 20:04:30,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 20:04:30,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 20:04:30,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 20:04:30,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 20:04:30,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 20:04:30,576 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 20:04:31,689 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 20:04:31,690 INFO L299 CfgBuilder]: Removed 46 assume(true) statements. [2021-10-13 20:04:31,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:04:31 BoogieIcfgContainer [2021-10-13 20:04:31,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 20:04:31,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 20:04:31,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 20:04:31,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 20:04:31,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:04:29" (1/3) ... [2021-10-13 20:04:31,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468bf835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:04:31, skipping insertion in model container [2021-10-13 20:04:31,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:04:30" (2/3) ... [2021-10-13 20:04:31,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468bf835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:04:31, skipping insertion in model container [2021-10-13 20:04:31,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:04:31" (3/3) ... [2021-10-13 20:04:31,715 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-subst.wvr.c [2021-10-13 20:04:31,723 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 20:04:31,723 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2021-10-13 20:04:31,723 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 20:04:31,793 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,793 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,794 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,794 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,794 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,794 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,795 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,795 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,795 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,795 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,796 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,796 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,796 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,796 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,796 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,797 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,797 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,797 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,797 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,797 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,798 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,798 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,798 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,798 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,799 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,799 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,799 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,799 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,799 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,800 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,800 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,800 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,800 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,800 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,801 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,801 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,801 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,801 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,801 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,802 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,802 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,802 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,802 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,802 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,803 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,803 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,803 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,803 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,803 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,807 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,807 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,807 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,807 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,807 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,808 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,808 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,808 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,808 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,808 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,809 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,809 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,810 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,810 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,812 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,812 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,812 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,812 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,812 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,813 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,813 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,814 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,814 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,815 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,815 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,815 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,815 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,815 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,816 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,816 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,816 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,816 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,817 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,817 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,817 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,817 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,817 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,818 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,818 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,818 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,818 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,818 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,819 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,819 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,819 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,819 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,819 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,820 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,820 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,820 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,820 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,820 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,821 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,821 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,821 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,821 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,821 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,822 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,822 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,822 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,822 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,822 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,823 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,823 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,823 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,823 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,824 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,824 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,824 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,825 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,825 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,825 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,825 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,826 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,826 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,826 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,826 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,826 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,827 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,827 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,827 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,827 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,827 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,828 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,828 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,828 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,828 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,831 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,831 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,831 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,831 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,832 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,832 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,832 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,832 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,832 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,833 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,833 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,833 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,833 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,833 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,834 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,834 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,834 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,834 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,834 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,835 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,835 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,835 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,835 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,835 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,836 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,836 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,836 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,836 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,836 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,837 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,837 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,837 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,837 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,837 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,837 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,838 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,838 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,838 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,838 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,839 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,839 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,839 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,839 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,839 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,839 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,840 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,840 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,840 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,840 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,840 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,841 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,841 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,841 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,841 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,841 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,842 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,842 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,842 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,843 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,843 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,843 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,843 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,843 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,843 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,844 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,844 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,844 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,844 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,844 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,845 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,845 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,845 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,845 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,845 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,845 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,846 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,846 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,846 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,846 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,846 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,846 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,847 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,847 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,847 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,847 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,847 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,847 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,848 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,848 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,848 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,848 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,848 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,848 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,849 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,849 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,849 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,849 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,849 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,850 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,850 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,851 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,851 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,851 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,851 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,851 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,851 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,852 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,852 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,852 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,852 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,852 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,853 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,853 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,853 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,853 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,853 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,853 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,854 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,854 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,854 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,854 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,854 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,854 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,854 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,855 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,855 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,855 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,855 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,855 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,856 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,856 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,856 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,856 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,856 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,856 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,857 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,857 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,857 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,857 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,857 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,857 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,858 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,858 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,858 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,858 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,858 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,858 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,858 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,859 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,859 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,859 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,859 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,859 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,860 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,860 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,860 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,860 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,860 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,860 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,861 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,861 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,861 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,861 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,861 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,862 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,863 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,863 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,863 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,863 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,863 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,864 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,864 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,864 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,864 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,864 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,865 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,865 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,865 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,865 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,865 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,866 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,866 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,866 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,866 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,866 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,866 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,867 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,867 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,867 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,867 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,867 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,868 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,868 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,868 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,868 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,868 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,868 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,869 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,869 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,869 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,869 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,869 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,869 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,870 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,870 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,870 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,870 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,870 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,870 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,871 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,871 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,871 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,872 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,872 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,872 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,872 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,872 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,872 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,873 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,873 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,873 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,873 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,874 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,874 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,874 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,874 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,874 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,875 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,875 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,875 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,875 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,875 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,875 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,875 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,876 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,876 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,876 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,876 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,876 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,876 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,877 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,877 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,877 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,877 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,877 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,877 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,878 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,878 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,878 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,878 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,878 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,879 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,879 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,879 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,879 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,879 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,879 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,880 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,880 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,880 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,880 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,880 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,881 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,881 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,881 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,881 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,881 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,882 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,882 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,882 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,882 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,882 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,883 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,883 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,883 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,883 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,883 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,883 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,884 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,884 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,884 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,884 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,884 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,885 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,885 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,885 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,885 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,885 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,886 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,886 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,886 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,886 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,886 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,887 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,887 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,887 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,887 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,887 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,887 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,888 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,888 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,888 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,888 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,888 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,888 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,889 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,889 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,889 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,889 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,889 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,890 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,890 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,890 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,890 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,890 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,891 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,891 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,891 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,891 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,891 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,893 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,893 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,893 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,893 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,893 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,894 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,894 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,897 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,898 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,899 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,901 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,907 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,907 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,908 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,908 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,908 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,908 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,908 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,908 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,909 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,909 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,909 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,909 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,909 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,910 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,910 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,910 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,910 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,910 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,910 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,911 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,914 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,915 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,915 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,915 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,915 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,915 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,915 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,916 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,916 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,916 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,916 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,916 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,917 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,917 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,917 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,917 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,917 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,918 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,918 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,918 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:04:31,925 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-13 20:04:31,980 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 20:04:31,989 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 [2021-10-13 20:04:31,989 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-10-13 20:04:32,026 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 20:04:32,040 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 394 places, 428 transitions, 880 flow [2021-10-13 20:04:32,048 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 394 places, 428 transitions, 880 flow [2021-10-13 20:04:32,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 394 places, 428 transitions, 880 flow [2021-10-13 20:04:32,314 INFO L129 PetriNetUnfolder]: 44/425 cut-off events. [2021-10-13 20:04:32,315 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-13 20:04:32,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 425 events. 44/425 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1242 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 300. Up to 2 conditions per place. [2021-10-13 20:04:32,377 INFO L116 LiptonReduction]: Number of co-enabled transitions 59514 [2021-10-13 20:05:24,577 INFO L131 LiptonReduction]: Checked pairs total: 54009 [2021-10-13 20:05:24,577 INFO L133 LiptonReduction]: Total number of compositions: 532 [2021-10-13 20:05:24,595 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 49 transitions, 122 flow [2021-10-13 20:05:24,657 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 750 states, 616 states have (on average 4.165584415584416) internal successors, (2566), 749 states have internal predecessors, (2566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:24,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 750 states, 616 states have (on average 4.165584415584416) internal successors, (2566), 749 states have internal predecessors, (2566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:24,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 20:05:24,670 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:24,671 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-13 20:05:24,671 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:24,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:24,677 INFO L82 PathProgramCache]: Analyzing trace with hash 60062, now seen corresponding path program 1 times [2021-10-13 20:05:24,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:24,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364616829] [2021-10-13 20:05:24,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:24,702 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:24,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:24,705 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) [2021-10-13 20:05:24,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 20:05:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:24,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 20:05:24,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:24,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:05:24,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:24,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:05:24,935 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:24,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364616829] [2021-10-13 20:05:24,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364616829] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:05:24,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:05:24,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-13 20:05:24,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973454180] [2021-10-13 20:05:24,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 20:05:24,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:24,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 20:05:24,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:25,013 INFO L87 Difference]: Start difference. First operand has 750 states, 616 states have (on average 4.165584415584416) internal successors, (2566), 749 states have internal predecessors, (2566), 0 states have call successors, (0), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:25,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:25,215 INFO L93 Difference]: Finished difference Result 753 states and 2571 transitions. [2021-10-13 20:05:25,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 20:05:25,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 2 [2021-10-13 20:05:25,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:25,258 INFO L225 Difference]: With dead ends: 753 [2021-10-13 20:05:25,258 INFO L226 Difference]: Without dead ends: 753 [2021-10-13 20:05:25,259 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:25,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2021-10-13 20:05:25,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 751. [2021-10-13 20:05:25,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 618 states have (on average 4.160194174757281) internal successors, (2571), 750 states have internal predecessors, (2571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:25,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 2571 transitions. [2021-10-13 20:05:25,393 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 2571 transitions. Word has length 2 [2021-10-13 20:05:25,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:25,394 INFO L470 AbstractCegarLoop]: Abstraction has 751 states and 2571 transitions. [2021-10-13 20:05:25,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:25,394 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 2571 transitions. [2021-10-13 20:05:25,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 20:05:25,395 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:25,395 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-13 20:05:25,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:25,608 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 [2021-10-13 20:05:25,608 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:25,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:25,609 INFO L82 PathProgramCache]: Analyzing trace with hash 59777, now seen corresponding path program 1 times [2021-10-13 20:05:25,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:25,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168114049] [2021-10-13 20:05:25,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:25,613 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:25,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:25,615 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) [2021-10-13 20:05:25,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 20:05:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:25,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 20:05:25,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:25,766 INFO L354 Elim1Store]: treesize reduction 84, result has 22.9 percent of original size [2021-10-13 20:05:25,768 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 3 case distinctions, treesize of input 15 treesize of output 30 [2021-10-13 20:05:25,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:05:25,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:25,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:05:25,827 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:25,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168114049] [2021-10-13 20:05:25,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168114049] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:05:25,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:05:25,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-13 20:05:25,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782428484] [2021-10-13 20:05:25,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 20:05:25,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:25,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 20:05:25,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 20:05:25,845 INFO L87 Difference]: Start difference. First operand 751 states and 2571 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:25,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:25,967 INFO L93 Difference]: Finished difference Result 750 states and 2568 transitions. [2021-10-13 20:05:25,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:05:25,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2021-10-13 20:05:25,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:25,980 INFO L225 Difference]: With dead ends: 750 [2021-10-13 20:05:25,980 INFO L226 Difference]: Without dead ends: 750 [2021-10-13 20:05:25,981 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 20:05:25,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2021-10-13 20:05:26,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2021-10-13 20:05:26,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 618 states have (on average 4.155339805825243) internal successors, (2568), 749 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:26,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 2568 transitions. [2021-10-13 20:05:26,026 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 2568 transitions. Word has length 2 [2021-10-13 20:05:26,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:26,027 INFO L470 AbstractCegarLoop]: Abstraction has 750 states and 2568 transitions. [2021-10-13 20:05:26,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:26,027 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 2568 transitions. [2021-10-13 20:05:26,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 20:05:26,028 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:26,028 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-13 20:05:26,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:26,241 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 [2021-10-13 20:05:26,242 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:26,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:26,243 INFO L82 PathProgramCache]: Analyzing trace with hash 59778, now seen corresponding path program 1 times [2021-10-13 20:05:26,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:26,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729536066] [2021-10-13 20:05:26,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:26,244 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:26,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:26,247 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) [2021-10-13 20:05:26,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 20:05:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:26,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 20:05:26,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:26,595 INFO L354 Elim1Store]: treesize reduction 219, result has 23.4 percent of original size [2021-10-13 20:05:26,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 72 [2021-10-13 20:05:26,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:05:26,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:26,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:05:26,780 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:26,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729536066] [2021-10-13 20:05:26,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729536066] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:05:26,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:05:26,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-13 20:05:26,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860393908] [2021-10-13 20:05:26,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 20:05:26,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:26,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 20:05:26,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:26,782 INFO L87 Difference]: Start difference. First operand 750 states and 2568 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:27,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:27,213 INFO L93 Difference]: Finished difference Result 750 states and 2566 transitions. [2021-10-13 20:05:27,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 20:05:27,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 2 [2021-10-13 20:05:27,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:27,224 INFO L225 Difference]: With dead ends: 750 [2021-10-13 20:05:27,224 INFO L226 Difference]: Without dead ends: 750 [2021-10-13 20:05:27,225 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 62.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:27,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2021-10-13 20:05:27,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2021-10-13 20:05:27,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 618 states have (on average 4.15210355987055) internal successors, (2566), 749 states have internal predecessors, (2566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:27,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 2566 transitions. [2021-10-13 20:05:27,262 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 2566 transitions. Word has length 2 [2021-10-13 20:05:27,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:27,262 INFO L470 AbstractCegarLoop]: Abstraction has 750 states and 2566 transitions. [2021-10-13 20:05:27,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:27,263 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 2566 transitions. [2021-10-13 20:05:27,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 20:05:27,263 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:27,263 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-13 20:05:27,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:27,480 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 [2021-10-13 20:05:27,481 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:27,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:27,482 INFO L82 PathProgramCache]: Analyzing trace with hash 57694270, now seen corresponding path program 1 times [2021-10-13 20:05:27,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:27,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366635715] [2021-10-13 20:05:27,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:27,484 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:27,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:27,486 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) [2021-10-13 20:05:27,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 20:05:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:27,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 20:05:27,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:27,618 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:05:27,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:27,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:05:27,709 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:27,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366635715] [2021-10-13 20:05:27,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366635715] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 20:05:27,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 20:05:27,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-13 20:05:27,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773089721] [2021-10-13 20:05:27,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 20:05:27,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:27,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 20:05:27,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-13 20:05:27,711 INFO L87 Difference]: Start difference. First operand 750 states and 2566 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:27,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:27,865 INFO L93 Difference]: Finished difference Result 752 states and 2568 transitions. [2021-10-13 20:05:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 20:05:27,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 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 4 [2021-10-13 20:05:27,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:27,874 INFO L225 Difference]: With dead ends: 752 [2021-10-13 20:05:27,875 INFO L226 Difference]: Without dead ends: 752 [2021-10-13 20:05:27,875 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 88.2ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-13 20:05:27,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2021-10-13 20:05:27,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 751. [2021-10-13 20:05:27,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 619 states have (on average 4.148626817447496) internal successors, (2568), 750 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:27,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 2568 transitions. [2021-10-13 20:05:27,910 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 2568 transitions. Word has length 4 [2021-10-13 20:05:27,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:27,910 INFO L470 AbstractCegarLoop]: Abstraction has 751 states and 2568 transitions. [2021-10-13 20:05:27,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:27,910 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 2568 transitions. [2021-10-13 20:05:27,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 20:05:27,911 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:27,911 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-13 20:05:27,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:28,122 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 [2021-10-13 20:05:28,123 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:28,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:28,124 INFO L82 PathProgramCache]: Analyzing trace with hash 57693986, now seen corresponding path program 1 times [2021-10-13 20:05:28,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:28,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532546326] [2021-10-13 20:05:28,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:28,126 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:28,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:28,127 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) [2021-10-13 20:05:28,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 20:05:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:28,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 20:05:28,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:28,449 INFO L354 Elim1Store]: treesize reduction 219, result has 23.4 percent of original size [2021-10-13 20:05:28,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 72 [2021-10-13 20:05:28,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:05:28,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:28,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:05:28,932 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:28,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532546326] [2021-10-13 20:05:28,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532546326] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 20:05:28,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 20:05:28,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-13 20:05:28,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866390513] [2021-10-13 20:05:28,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 20:05:28,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:28,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 20:05:28,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-13 20:05:28,934 INFO L87 Difference]: Start difference. First operand 751 states and 2568 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:29,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:29,598 INFO L93 Difference]: Finished difference Result 751 states and 2567 transitions. [2021-10-13 20:05:29,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 20:05:29,599 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 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 4 [2021-10-13 20:05:29,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:29,606 INFO L225 Difference]: With dead ends: 751 [2021-10-13 20:05:29,606 INFO L226 Difference]: Without dead ends: 751 [2021-10-13 20:05:29,607 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 300.1ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-13 20:05:29,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2021-10-13 20:05:29,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2021-10-13 20:05:29,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 619 states have (on average 4.147011308562197) internal successors, (2567), 750 states have internal predecessors, (2567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:29,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 2567 transitions. [2021-10-13 20:05:29,638 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 2567 transitions. Word has length 4 [2021-10-13 20:05:29,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:29,638 INFO L470 AbstractCegarLoop]: Abstraction has 751 states and 2567 transitions. [2021-10-13 20:05:29,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:29,639 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 2567 transitions. [2021-10-13 20:05:29,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 20:05:29,639 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:29,639 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1] [2021-10-13 20:05:29,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:29,853 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 [2021-10-13 20:05:29,854 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:29,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:29,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1788521579, now seen corresponding path program 2 times [2021-10-13 20:05:29,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:29,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140781563] [2021-10-13 20:05:29,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 20:05:29,856 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:29,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:29,857 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) [2021-10-13 20:05:29,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 20:05:29,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 20:05:29,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:05:29,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 20:05:29,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:30,227 INFO L354 Elim1Store]: treesize reduction 219, result has 23.4 percent of original size [2021-10-13 20:05:30,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 96 [2021-10-13 20:05:30,240 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-13 20:05:30,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 95 [2021-10-13 20:05:33,218 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:33,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:33,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:33,308 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:33,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140781563] [2021-10-13 20:05:33,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140781563] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:05:33,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:05:33,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-13 20:05:33,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492547344] [2021-10-13 20:05:33,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 20:05:33,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:33,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 20:05:33,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:33,310 INFO L87 Difference]: Start difference. First operand 751 states and 2567 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) [2021-10-13 20:05:33,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:33,586 INFO L93 Difference]: Finished difference Result 625 states and 2066 transitions. [2021-10-13 20:05:33,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:05:33,588 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 5 [2021-10-13 20:05:33,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:33,594 INFO L225 Difference]: With dead ends: 625 [2021-10-13 20:05:33,595 INFO L226 Difference]: Without dead ends: 625 [2021-10-13 20:05:33,595 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:33,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-10-13 20:05:33,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 625. [2021-10-13 20:05:33,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 521 states have (on average 3.965451055662188) internal successors, (2066), 624 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:33,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 2066 transitions. [2021-10-13 20:05:33,624 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 2066 transitions. Word has length 5 [2021-10-13 20:05:33,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:33,626 INFO L470 AbstractCegarLoop]: Abstraction has 625 states and 2066 transitions. [2021-10-13 20:05:33,626 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) [2021-10-13 20:05:33,626 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 2066 transitions. [2021-10-13 20:05:33,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 20:05:33,626 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:33,626 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1] [2021-10-13 20:05:33,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:33,840 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 [2021-10-13 20:05:33,840 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:33,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:33,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1788521580, now seen corresponding path program 1 times [2021-10-13 20:05:33,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:33,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902151941] [2021-10-13 20:05:33,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:33,868 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:33,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:33,870 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) [2021-10-13 20:05:33,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 20:05:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:33,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 20:05:33,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:34,054 INFO L354 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2021-10-13 20:05:34,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 53 [2021-10-13 20:05:34,285 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:34,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:34,305 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:34,306 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:34,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902151941] [2021-10-13 20:05:34,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902151941] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:05:34,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:05:34,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-13 20:05:34,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623535187] [2021-10-13 20:05:34,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 20:05:34,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:34,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 20:05:34,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:34,309 INFO L87 Difference]: Start difference. First operand 625 states and 2066 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) [2021-10-13 20:05:34,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:34,437 INFO L93 Difference]: Finished difference Result 499 states and 1565 transitions. [2021-10-13 20:05:34,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:05:34,438 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 5 [2021-10-13 20:05:34,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:34,443 INFO L225 Difference]: With dead ends: 499 [2021-10-13 20:05:34,443 INFO L226 Difference]: Without dead ends: 499 [2021-10-13 20:05:34,443 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:34,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2021-10-13 20:05:34,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2021-10-13 20:05:34,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 423 states have (on average 3.699763593380615) internal successors, (1565), 498 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:34,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 1565 transitions. [2021-10-13 20:05:34,463 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 1565 transitions. Word has length 5 [2021-10-13 20:05:34,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:34,463 INFO L470 AbstractCegarLoop]: Abstraction has 499 states and 1565 transitions. [2021-10-13 20:05:34,463 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) [2021-10-13 20:05:34,463 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 1565 transitions. [2021-10-13 20:05:34,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 20:05:34,464 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:34,464 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1] [2021-10-13 20:05:34,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:34,677 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 [2021-10-13 20:05:34,678 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:34,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:34,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1788521295, now seen corresponding path program 2 times [2021-10-13 20:05:34,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:34,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1764366816] [2021-10-13 20:05:34,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 20:05:34,680 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:34,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:34,682 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) [2021-10-13 20:05:34,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 20:05:34,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 20:05:34,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:05:34,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 20:05:34,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:34,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:05:34,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:34,931 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:05:34,932 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:34,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1764366816] [2021-10-13 20:05:34,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1764366816] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 20:05:34,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 20:05:34,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-10-13 20:05:34,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235082259] [2021-10-13 20:05:34,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 20:05:34,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:34,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 20:05:34,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-13 20:05:34,934 INFO L87 Difference]: Start difference. First operand 499 states and 1565 transitions. Second operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 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) [2021-10-13 20:05:35,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:35,012 INFO L93 Difference]: Finished difference Result 498 states and 1563 transitions. [2021-10-13 20:05:35,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 20:05:35,014 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 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 [2021-10-13 20:05:35,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:35,018 INFO L225 Difference]: With dead ends: 498 [2021-10-13 20:05:35,018 INFO L226 Difference]: Without dead ends: 498 [2021-10-13 20:05:35,019 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 95.4ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-13 20:05:35,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2021-10-13 20:05:35,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2021-10-13 20:05:35,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 423 states have (on average 3.6950354609929077) internal successors, (1563), 497 states have internal predecessors, (1563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:35,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 1563 transitions. [2021-10-13 20:05:35,042 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 1563 transitions. Word has length 5 [2021-10-13 20:05:35,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:35,042 INFO L470 AbstractCegarLoop]: Abstraction has 498 states and 1563 transitions. [2021-10-13 20:05:35,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 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) [2021-10-13 20:05:35,042 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 1563 transitions. [2021-10-13 20:05:35,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 20:05:35,043 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:35,043 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1] [2021-10-13 20:05:35,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:35,256 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 [2021-10-13 20:05:35,260 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:35,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:35,260 INFO L82 PathProgramCache]: Analyzing trace with hash 782360419, now seen corresponding path program 1 times [2021-10-13 20:05:35,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:35,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969638165] [2021-10-13 20:05:35,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:35,261 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:35,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:35,263 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) [2021-10-13 20:05:35,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 20:05:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:35,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 20:05:35,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:35,426 INFO L354 Elim1Store]: treesize reduction 84, result has 22.9 percent of original size [2021-10-13 20:05:35,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 45 [2021-10-13 20:05:35,752 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:35,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:35,778 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:35,779 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:35,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969638165] [2021-10-13 20:05:35,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969638165] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:05:35,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:05:35,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-13 20:05:35,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803899658] [2021-10-13 20:05:35,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 20:05:35,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:35,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 20:05:35,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:35,781 INFO L87 Difference]: Start difference. First operand 498 states and 1563 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) [2021-10-13 20:05:35,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:35,881 INFO L93 Difference]: Finished difference Result 468 states and 1478 transitions. [2021-10-13 20:05:35,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:05:35,886 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 7 [2021-10-13 20:05:35,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:35,890 INFO L225 Difference]: With dead ends: 468 [2021-10-13 20:05:35,890 INFO L226 Difference]: Without dead ends: 468 [2021-10-13 20:05:35,891 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:35,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2021-10-13 20:05:35,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2021-10-13 20:05:35,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 405 states have (on average 3.6493827160493826) internal successors, (1478), 467 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:35,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 1478 transitions. [2021-10-13 20:05:35,910 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 1478 transitions. Word has length 7 [2021-10-13 20:05:35,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:35,910 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 1478 transitions. [2021-10-13 20:05:35,911 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) [2021-10-13 20:05:35,911 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 1478 transitions. [2021-10-13 20:05:35,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 20:05:35,911 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:35,911 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1] [2021-10-13 20:05:35,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:36,128 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 [2021-10-13 20:05:36,129 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:36,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:36,130 INFO L82 PathProgramCache]: Analyzing trace with hash 782360420, now seen corresponding path program 1 times [2021-10-13 20:05:36,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:36,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475182027] [2021-10-13 20:05:36,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:36,131 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:36,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:36,132 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) [2021-10-13 20:05:36,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 20:05:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:36,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 20:05:36,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:36,494 INFO L354 Elim1Store]: treesize reduction 219, result has 23.4 percent of original size [2021-10-13 20:05:36,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 87 [2021-10-13 20:05:36,499 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 89 treesize of output 87 [2021-10-13 20:05:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:40,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:40,413 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:40,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475182027] [2021-10-13 20:05:40,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475182027] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:05:40,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:05:40,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-13 20:05:40,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057671534] [2021-10-13 20:05:40,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 20:05:40,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:40,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 20:05:40,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:40,416 INFO L87 Difference]: Start difference. First operand 468 states and 1478 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) [2021-10-13 20:05:40,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:40,529 INFO L93 Difference]: Finished difference Result 438 states and 1393 transitions. [2021-10-13 20:05:40,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:05:40,530 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 7 [2021-10-13 20:05:40,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:40,534 INFO L225 Difference]: With dead ends: 438 [2021-10-13 20:05:40,534 INFO L226 Difference]: Without dead ends: 438 [2021-10-13 20:05:40,535 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:40,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2021-10-13 20:05:40,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2021-10-13 20:05:40,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 387 states have (on average 3.599483204134367) internal successors, (1393), 437 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:40,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 1393 transitions. [2021-10-13 20:05:40,549 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 1393 transitions. Word has length 7 [2021-10-13 20:05:40,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:40,550 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 1393 transitions. [2021-10-13 20:05:40,550 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) [2021-10-13 20:05:40,550 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 1393 transitions. [2021-10-13 20:05:40,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 20:05:40,551 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:40,551 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2021-10-13 20:05:40,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:40,763 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 [2021-10-13 20:05:40,763 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:40,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:40,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1516624817, now seen corresponding path program 1 times [2021-10-13 20:05:40,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:40,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187340938] [2021-10-13 20:05:40,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:40,765 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:40,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:40,766 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) [2021-10-13 20:05:40,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 20:05:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:40,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 20:05:40,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:41,138 INFO L354 Elim1Store]: treesize reduction 219, result has 23.4 percent of original size [2021-10-13 20:05:41,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 72 [2021-10-13 20:05:41,296 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:41,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:41,615 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:41,615 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:41,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187340938] [2021-10-13 20:05:41,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187340938] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:05:41,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:05:41,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-13 20:05:41,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903829727] [2021-10-13 20:05:41,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 20:05:41,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:41,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 20:05:41,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-13 20:05:41,617 INFO L87 Difference]: Start difference. First operand 438 states and 1393 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:42,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:42,096 INFO L93 Difference]: Finished difference Result 870 states and 2852 transitions. [2021-10-13 20:05:42,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 20:05:42,098 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 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 8 [2021-10-13 20:05:42,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:42,105 INFO L225 Difference]: With dead ends: 870 [2021-10-13 20:05:42,106 INFO L226 Difference]: Without dead ends: 870 [2021-10-13 20:05:42,106 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 305.9ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-13 20:05:42,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2021-10-13 20:05:42,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 582. [2021-10-13 20:05:42,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 531 states have (on average 4.065913370998117) internal successors, (2159), 581 states have internal predecessors, (2159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:42,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 2159 transitions. [2021-10-13 20:05:42,129 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 2159 transitions. Word has length 8 [2021-10-13 20:05:42,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:42,130 INFO L470 AbstractCegarLoop]: Abstraction has 582 states and 2159 transitions. [2021-10-13 20:05:42,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:42,130 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 2159 transitions. [2021-10-13 20:05:42,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 20:05:42,130 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:42,131 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2021-10-13 20:05:42,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:42,343 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 [2021-10-13 20:05:42,343 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:42,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:42,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1516624814, now seen corresponding path program 1 times [2021-10-13 20:05:42,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:42,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831345313] [2021-10-13 20:05:42,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:42,346 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:42,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:42,347 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) [2021-10-13 20:05:42,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 20:05:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:42,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 20:05:42,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:42,517 INFO L354 Elim1Store]: treesize reduction 84, result has 22.9 percent of original size [2021-10-13 20:05:42,518 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 3 case distinctions, treesize of input 15 treesize of output 30 [2021-10-13 20:05:42,563 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:42,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:42,586 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:42,586 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:42,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831345313] [2021-10-13 20:05:42,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831345313] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:05:42,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:05:42,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 20:05:42,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369271821] [2021-10-13 20:05:42,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 20:05:42,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:42,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 20:05:42,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:42,588 INFO L87 Difference]: Start difference. First operand 582 states and 2159 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) [2021-10-13 20:05:42,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:42,709 INFO L93 Difference]: Finished difference Result 356 states and 1220 transitions. [2021-10-13 20:05:42,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 20:05:42,710 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 8 [2021-10-13 20:05:42,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:42,713 INFO L225 Difference]: With dead ends: 356 [2021-10-13 20:05:42,713 INFO L226 Difference]: Without dead ends: 356 [2021-10-13 20:05:42,713 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 20:05:42,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-10-13 20:05:42,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2021-10-13 20:05:42,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 336 states have (on average 3.630952380952381) internal successors, (1220), 355 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:42,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 1220 transitions. [2021-10-13 20:05:42,726 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 1220 transitions. Word has length 8 [2021-10-13 20:05:42,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:42,727 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 1220 transitions. [2021-10-13 20:05:42,727 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) [2021-10-13 20:05:42,727 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 1220 transitions. [2021-10-13 20:05:42,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 20:05:42,728 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:42,728 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2021-10-13 20:05:42,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:42,940 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 [2021-10-13 20:05:42,940 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:42,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:42,941 INFO L82 PathProgramCache]: Analyzing trace with hash 229130058, now seen corresponding path program 1 times [2021-10-13 20:05:42,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:42,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517718075] [2021-10-13 20:05:42,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:42,942 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:42,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:42,943 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) [2021-10-13 20:05:42,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-13 20:05:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:43,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 20:05:43,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:43,140 INFO L354 Elim1Store]: treesize reduction 84, result has 22.9 percent of original size [2021-10-13 20:05:43,141 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 3 case distinctions, treesize of input 15 treesize of output 30 [2021-10-13 20:05:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:43,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:43,210 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:43,211 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:43,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517718075] [2021-10-13 20:05:43,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517718075] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:05:43,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:05:43,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-13 20:05:43,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351677599] [2021-10-13 20:05:43,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 20:05:43,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:43,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 20:05:43,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 20:05:43,212 INFO L87 Difference]: Start difference. First operand 356 states and 1220 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) [2021-10-13 20:05:43,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:43,280 INFO L93 Difference]: Finished difference Result 328 states and 1132 transitions. [2021-10-13 20:05:43,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:05:43,280 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 9 [2021-10-13 20:05:43,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:43,283 INFO L225 Difference]: With dead ends: 328 [2021-10-13 20:05:43,283 INFO L226 Difference]: Without dead ends: 328 [2021-10-13 20:05:43,283 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 20:05:43,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-10-13 20:05:43,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2021-10-13 20:05:43,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 314 states have (on average 3.605095541401274) internal successors, (1132), 327 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:43,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 1132 transitions. [2021-10-13 20:05:43,293 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 1132 transitions. Word has length 9 [2021-10-13 20:05:43,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:43,293 INFO L470 AbstractCegarLoop]: Abstraction has 328 states and 1132 transitions. [2021-10-13 20:05:43,293 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) [2021-10-13 20:05:43,293 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 1132 transitions. [2021-10-13 20:05:43,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 20:05:43,294 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:43,294 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2021-10-13 20:05:43,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:43,501 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 [2021-10-13 20:05:43,502 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:43,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:43,503 INFO L82 PathProgramCache]: Analyzing trace with hash 229130059, now seen corresponding path program 1 times [2021-10-13 20:05:43,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:43,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332274438] [2021-10-13 20:05:43,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:43,504 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:43,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:43,506 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) [2021-10-13 20:05:43,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-13 20:05:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:43,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 20:05:43,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:43,955 INFO L354 Elim1Store]: treesize reduction 241, result has 18.6 percent of original size [2021-10-13 20:05:43,956 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 5 case distinctions, treesize of input 42 treesize of output 80 [2021-10-13 20:05:43,961 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 83 treesize of output 81 [2021-10-13 20:05:44,860 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:44,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:44,964 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:44,964 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:44,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332274438] [2021-10-13 20:05:44,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332274438] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:05:44,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:05:44,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-13 20:05:44,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26815126] [2021-10-13 20:05:44,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 20:05:44,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:44,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 20:05:44,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:44,967 INFO L87 Difference]: Start difference. First operand 328 states and 1132 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:45,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:45,078 INFO L93 Difference]: Finished difference Result 300 states and 1044 transitions. [2021-10-13 20:05:45,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:05:45,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 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 9 [2021-10-13 20:05:45,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:45,081 INFO L225 Difference]: With dead ends: 300 [2021-10-13 20:05:45,081 INFO L226 Difference]: Without dead ends: 300 [2021-10-13 20:05:45,082 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:05:45,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-10-13 20:05:45,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2021-10-13 20:05:45,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 292 states have (on average 3.5753424657534247) internal successors, (1044), 299 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:45,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 1044 transitions. [2021-10-13 20:05:45,092 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 1044 transitions. Word has length 9 [2021-10-13 20:05:45,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:45,093 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 1044 transitions. [2021-10-13 20:05:45,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:45,093 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 1044 transitions. [2021-10-13 20:05:45,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 20:05:45,094 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:45,094 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2021-10-13 20:05:45,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:45,306 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 [2021-10-13 20:05:45,307 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:45,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:45,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1482402289, now seen corresponding path program 1 times [2021-10-13 20:05:45,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:45,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177105722] [2021-10-13 20:05:45,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:45,309 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:45,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:45,310 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) [2021-10-13 20:05:45,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-13 20:05:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:45,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 20:05:45,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:45,740 INFO L354 Elim1Store]: treesize reduction 219, result has 23.4 percent of original size [2021-10-13 20:05:45,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 72 [2021-10-13 20:05:46,771 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 506 treesize of output 498 [2021-10-13 20:05:46,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:05:46,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:05:46,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:05:46,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:05:46,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:05:46,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:05:46,796 INFO L354 Elim1Store]: treesize reduction 333, result has 0.3 percent of original size [2021-10-13 20:05:46,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 498 treesize of output 318 [2021-10-13 20:05:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:47,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:48,249 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,250 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,250 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,251 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,251 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,252 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,253 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,253 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,254 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,254 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,255 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,256 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,257 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,257 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,259 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,259 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,260 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,260 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,261 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,261 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,262 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,262 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,263 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,264 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:48,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 37 [2021-10-13 20:05:48,439 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 11 treesize of output 9 [2021-10-13 20:05:49,451 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:49,452 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:49,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177105722] [2021-10-13 20:05:49,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177105722] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 20:05:49,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 20:05:49,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-10-13 20:05:49,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851075170] [2021-10-13 20:05:49,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 20:05:49,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:49,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 20:05:49,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:05:49,454 INFO L87 Difference]: Start difference. First operand 300 states and 1044 transitions. Second operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:52,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:52,768 INFO L93 Difference]: Finished difference Result 1003 states and 3454 transitions. [2021-10-13 20:05:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 20:05:52,769 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 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 10 [2021-10-13 20:05:52,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:52,790 INFO L225 Difference]: With dead ends: 1003 [2021-10-13 20:05:52,790 INFO L226 Difference]: Without dead ends: 1003 [2021-10-13 20:05:52,795 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 2837.3ms TimeCoverageRelationStatistics Valid=183, Invalid=369, Unknown=0, NotChecked=0, Total=552 [2021-10-13 20:05:52,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2021-10-13 20:05:52,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 550. [2021-10-13 20:05:52,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 542 states have (on average 4.0055350553505535) internal successors, (2171), 549 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:52,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 2171 transitions. [2021-10-13 20:05:52,873 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 2171 transitions. Word has length 10 [2021-10-13 20:05:52,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:52,874 INFO L470 AbstractCegarLoop]: Abstraction has 550 states and 2171 transitions. [2021-10-13 20:05:52,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:52,874 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 2171 transitions. [2021-10-13 20:05:52,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 20:05:52,876 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:52,876 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:05:52,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:53,092 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 [2021-10-13 20:05:53,092 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:53,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:53,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1486898696, now seen corresponding path program 1 times [2021-10-13 20:05:53,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:53,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428949569] [2021-10-13 20:05:53,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:53,093 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:53,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:53,095 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) [2021-10-13 20:05:53,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-13 20:05:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:53,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:05:53,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:53,502 INFO L354 Elim1Store]: treesize reduction 219, result has 23.4 percent of original size [2021-10-13 20:05:53,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 72 [2021-10-13 20:05:53,632 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:53,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:53,937 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:53,938 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:53,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428949569] [2021-10-13 20:05:53,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428949569] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:05:53,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:05:53,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-13 20:05:53,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232426642] [2021-10-13 20:05:53,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 20:05:53,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:53,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 20:05:53,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-13 20:05:53,941 INFO L87 Difference]: Start difference. First operand 550 states and 2171 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:54,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:54,325 INFO L93 Difference]: Finished difference Result 1082 states and 4295 transitions. [2021-10-13 20:05:54,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 20:05:54,326 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 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 10 [2021-10-13 20:05:54,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:54,337 INFO L225 Difference]: With dead ends: 1082 [2021-10-13 20:05:54,337 INFO L226 Difference]: Without dead ends: 1082 [2021-10-13 20:05:54,337 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.7ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-13 20:05:54,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2021-10-13 20:05:54,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 806. [2021-10-13 20:05:54,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 798 states have (on average 4.349624060150376) internal successors, (3471), 805 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:54,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 3471 transitions. [2021-10-13 20:05:54,372 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 3471 transitions. Word has length 10 [2021-10-13 20:05:54,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:54,372 INFO L470 AbstractCegarLoop]: Abstraction has 806 states and 3471 transitions. [2021-10-13 20:05:54,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:54,373 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 3471 transitions. [2021-10-13 20:05:54,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 20:05:54,374 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:54,374 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:05:54,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:54,587 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 [2021-10-13 20:05:54,587 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:54,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:54,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1311815688, now seen corresponding path program 1 times [2021-10-13 20:05:54,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:54,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497947951] [2021-10-13 20:05:54,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:54,589 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:54,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:54,590 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) [2021-10-13 20:05:54,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-13 20:05:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:54,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:05:54,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:55,034 INFO L354 Elim1Store]: treesize reduction 219, result has 23.4 percent of original size [2021-10-13 20:05:55,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 72 [2021-10-13 20:05:55,181 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:55,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:55,605 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:55,605 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:05:55,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497947951] [2021-10-13 20:05:55,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497947951] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:05:55,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:05:55,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-13 20:05:55,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527065784] [2021-10-13 20:05:55,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 20:05:55,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:05:55,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 20:05:55,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-13 20:05:55,608 INFO L87 Difference]: Start difference. First operand 806 states and 3471 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:56,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:05:56,027 INFO L93 Difference]: Finished difference Result 1442 states and 6291 transitions. [2021-10-13 20:05:56,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 20:05:56,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 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 12 [2021-10-13 20:05:56,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:05:56,044 INFO L225 Difference]: With dead ends: 1442 [2021-10-13 20:05:56,044 INFO L226 Difference]: Without dead ends: 1442 [2021-10-13 20:05:56,045 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 339.9ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-13 20:05:56,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2021-10-13 20:05:56,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1122. [2021-10-13 20:05:56,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1114 states have (on average 4.663375224416517) internal successors, (5195), 1121 states have internal predecessors, (5195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:56,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 5195 transitions. [2021-10-13 20:05:56,097 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 5195 transitions. Word has length 12 [2021-10-13 20:05:56,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:05:56,098 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 5195 transitions. [2021-10-13 20:05:56,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:05:56,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 5195 transitions. [2021-10-13 20:05:56,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 20:05:56,099 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:05:56,099 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:05:56,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-13 20:05:56,313 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 [2021-10-13 20:05:56,314 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:05:56,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:05:56,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1314593848, now seen corresponding path program 1 times [2021-10-13 20:05:56,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:05:56,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87679798] [2021-10-13 20:05:56,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:05:56,315 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:05:56,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:05:56,316 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) [2021-10-13 20:05:56,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-13 20:05:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:05:56,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 20:05:56,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:05:56,829 INFO L354 Elim1Store]: treesize reduction 219, result has 23.4 percent of original size [2021-10-13 20:05:56,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 72 [2021-10-13 20:05:57,654 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 497 treesize of output 489 [2021-10-13 20:05:57,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:05:57,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:05:57,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:05:57,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:05:57,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:05:57,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:05:57,676 INFO L354 Elim1Store]: treesize reduction 333, result has 0.3 percent of original size [2021-10-13 20:05:57,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 489 treesize of output 309 [2021-10-13 20:05:58,617 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:05:58,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:05:59,160 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 8 treesize of output 6 [2021-10-13 20:05:59,313 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,314 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,314 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,315 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,315 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,316 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,316 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,317 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,318 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,318 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,323 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,324 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,324 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,325 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,325 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,326 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,326 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,327 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,327 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,328 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,328 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,329 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,329 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,330 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,330 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,331 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,331 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,332 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:05:59,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 37 [2021-10-13 20:06:00,282 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:06:00,282 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:06:00,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87679798] [2021-10-13 20:06:00,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87679798] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 20:06:00,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 20:06:00,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-10-13 20:06:00,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655192] [2021-10-13 20:06:00,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 20:06:00,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:06:00,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 20:06:00,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:06:00,284 INFO L87 Difference]: Start difference. First operand 1122 states and 5195 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:03,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:06:03,629 INFO L93 Difference]: Finished difference Result 3278 states and 15086 transitions. [2021-10-13 20:06:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 20:06:03,630 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 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 12 [2021-10-13 20:06:03,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:06:03,656 INFO L225 Difference]: With dead ends: 3278 [2021-10-13 20:06:03,656 INFO L226 Difference]: Without dead ends: 3278 [2021-10-13 20:06:03,657 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2730.0ms TimeCoverageRelationStatistics Valid=183, Invalid=369, Unknown=0, NotChecked=0, Total=552 [2021-10-13 20:06:03,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3278 states. [2021-10-13 20:06:03,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3278 to 2178. [2021-10-13 20:06:03,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2178 states, 2170 states have (on average 5.1009216589861754) internal successors, (11069), 2177 states have internal predecessors, (11069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:03,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 11069 transitions. [2021-10-13 20:06:03,805 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 11069 transitions. Word has length 12 [2021-10-13 20:06:03,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:06:03,807 INFO L470 AbstractCegarLoop]: Abstraction has 2178 states and 11069 transitions. [2021-10-13 20:06:03,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:03,807 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 11069 transitions. [2021-10-13 20:06:03,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 20:06:03,808 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:06:03,809 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1] [2021-10-13 20:06:03,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-10-13 20:06:04,021 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 [2021-10-13 20:06:04,021 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:06:04,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:06:04,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1388846832, now seen corresponding path program 1 times [2021-10-13 20:06:04,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:06:04,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424082754] [2021-10-13 20:06:04,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:06:04,023 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:06:04,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:06:04,024 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) [2021-10-13 20:06:04,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-13 20:06:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:06:04,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 20:06:04,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:06:07,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:06:07,718 INFO L354 Elim1Store]: treesize reduction 569, result has 0.2 percent of original size [2021-10-13 20:06:07,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 553 treesize of output 343 [2021-10-13 20:06:13,851 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:06:13,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 418 treesize of output 348 [2021-10-13 20:06:13,859 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 348 treesize of output 340 [2021-10-13 20:06:13,867 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 340 treesize of output 336 [2021-10-13 20:06:14,100 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:06:14,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:06:14,179 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:14,180 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:14,180 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:14,181 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:14,181 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:14,181 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:14,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 19 [2021-10-13 20:06:15,463 INFO L354 Elim1Store]: treesize reduction 1177, result has 0.1 percent of original size [2021-10-13 20:06:15,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 357 treesize of output 143 [2021-10-13 20:06:15,482 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 143 treesize of output 141 [2021-10-13 20:06:15,498 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 132 treesize of output 128 [2021-10-13 20:06:16,040 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:06:16,041 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:06:16,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424082754] [2021-10-13 20:06:16,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424082754] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 20:06:16,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 20:06:16,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-13 20:06:16,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202569686] [2021-10-13 20:06:16,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 20:06:16,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:06:16,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 20:06:16,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-13 20:06:16,045 INFO L87 Difference]: Start difference. First operand 2178 states and 11069 transitions. Second operand has 11 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:21,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:06:21,408 INFO L93 Difference]: Finished difference Result 4723 states and 21742 transitions. [2021-10-13 20:06:21,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 20:06:21,410 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 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 13 [2021-10-13 20:06:21,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:06:21,437 INFO L225 Difference]: With dead ends: 4723 [2021-10-13 20:06:21,437 INFO L226 Difference]: Without dead ends: 4709 [2021-10-13 20:06:21,438 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 6312.3ms TimeCoverageRelationStatistics Valid=103, Invalid=169, Unknown=0, NotChecked=0, Total=272 [2021-10-13 20:06:21,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4709 states. [2021-10-13 20:06:21,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4709 to 2440. [2021-10-13 20:06:21,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2440 states, 2432 states have (on average 4.994243421052632) internal successors, (12146), 2439 states have internal predecessors, (12146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:21,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 12146 transitions. [2021-10-13 20:06:21,608 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 12146 transitions. Word has length 13 [2021-10-13 20:06:21,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:06:21,610 INFO L470 AbstractCegarLoop]: Abstraction has 2440 states and 12146 transitions. [2021-10-13 20:06:21,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:21,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 12146 transitions. [2021-10-13 20:06:21,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 20:06:21,612 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:06:21,612 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:06:21,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-13 20:06:21,825 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 [2021-10-13 20:06:21,826 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:06:21,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:06:21,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1534638220, now seen corresponding path program 1 times [2021-10-13 20:06:21,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:06:21,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386666099] [2021-10-13 20:06:21,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:06:21,829 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:06:21,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:06:21,830 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) [2021-10-13 20:06:21,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-13 20:06:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:06:22,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 20:06:22,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:06:22,334 INFO L354 Elim1Store]: treesize reduction 219, result has 23.4 percent of original size [2021-10-13 20:06:22,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 72 [2021-10-13 20:06:22,628 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:06:22,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 318 treesize of output 248 [2021-10-13 20:06:25,216 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:06:25,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 396 treesize of output 326 [2021-10-13 20:06:25,225 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 326 treesize of output 318 [2021-10-13 20:06:25,876 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:06:25,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386666099] [2021-10-13 20:06:25,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: No corresponding IProgramVar for v_arrayElimCell_83 [2021-10-13 20:06:25,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1219161349] [2021-10-13 20:06:25,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:06:25,877 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 20:06:25,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 [2021-10-13 20:06:25,879 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 20:06:25,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2021-10-13 20:06:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:06:26,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 20:06:26,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:06:26,735 INFO L354 Elim1Store]: treesize reduction 219, result has 23.4 percent of original size [2021-10-13 20:06:26,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 72 [2021-10-13 20:06:26,967 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:06:26,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 318 treesize of output 248 [2021-10-13 20:06:28,007 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:06:28,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 396 treesize of output 326 [2021-10-13 20:06:28,022 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 326 treesize of output 318 [2021-10-13 20:06:28,813 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:06:28,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:06:28,990 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:28,991 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:28,991 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:28,991 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:28,992 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:28,992 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:28,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 19 [2021-10-13 20:06:29,736 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:29,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:29,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:29,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:29,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:29,739 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:29,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 19 [2021-10-13 20:06:29,879 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 11 treesize of output 9 [2021-10-13 20:06:30,744 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:06:30,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1219161349] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 20:06:30,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 20:06:30,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-10-13 20:06:30,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378743668] [2021-10-13 20:06:30,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 20:06:30,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:06:30,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 20:06:30,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:06:30,746 INFO L87 Difference]: Start difference. First operand 2440 states and 12146 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:33,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:06:33,723 INFO L93 Difference]: Finished difference Result 3653 states and 16511 transitions. [2021-10-13 20:06:33,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 20:06:33,723 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 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 13 [2021-10-13 20:06:33,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:06:33,748 INFO L225 Difference]: With dead ends: 3653 [2021-10-13 20:06:33,748 INFO L226 Difference]: Without dead ends: 3653 [2021-10-13 20:06:33,748 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4513.4ms TimeCoverageRelationStatistics Valid=126, Invalid=254, Unknown=0, NotChecked=0, Total=380 [2021-10-13 20:06:33,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3653 states. [2021-10-13 20:06:33,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3653 to 1937. [2021-10-13 20:06:33,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1937 states, 1933 states have (on average 4.871702017589239) internal successors, (9417), 1936 states have internal predecessors, (9417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:33,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 9417 transitions. [2021-10-13 20:06:33,877 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 9417 transitions. Word has length 13 [2021-10-13 20:06:33,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:06:33,877 INFO L470 AbstractCegarLoop]: Abstraction has 1937 states and 9417 transitions. [2021-10-13 20:06:33,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:33,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 9417 transitions. [2021-10-13 20:06:33,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 20:06:33,879 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:06:33,879 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:06:33,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-13 20:06:34,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2021-10-13 20:06:34,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,22 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2021-10-13 20:06:34,294 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:06:34,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:06:34,295 INFO L82 PathProgramCache]: Analyzing trace with hash -2065422424, now seen corresponding path program 1 times [2021-10-13 20:06:34,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:06:34,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624261486] [2021-10-13 20:06:34,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:06:34,296 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:06:34,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:06:34,297 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) [2021-10-13 20:06:34,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-13 20:06:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:06:34,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 20:06:34,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:06:34,836 INFO L354 Elim1Store]: treesize reduction 219, result has 23.4 percent of original size [2021-10-13 20:06:34,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 72 [2021-10-13 20:06:35,030 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:06:35,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:06:35,583 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:06:35,583 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:06:35,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624261486] [2021-10-13 20:06:35,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624261486] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 20:06:35,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 20:06:35,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-10-13 20:06:35,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838707936] [2021-10-13 20:06:35,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 20:06:35,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:06:35,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 20:06:35,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:06:35,585 INFO L87 Difference]: Start difference. First operand 1937 states and 9417 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:36,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:06:36,804 INFO L93 Difference]: Finished difference Result 4865 states and 22482 transitions. [2021-10-13 20:06:36,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 20:06:36,806 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 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 14 [2021-10-13 20:06:36,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:06:36,861 INFO L225 Difference]: With dead ends: 4865 [2021-10-13 20:06:36,861 INFO L226 Difference]: Without dead ends: 4865 [2021-10-13 20:06:36,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 854.5ms TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2021-10-13 20:06:36,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4865 states. [2021-10-13 20:06:36,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4865 to 3161. [2021-10-13 20:06:37,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3161 states, 3157 states have (on average 5.236300285080773) internal successors, (16531), 3160 states have internal predecessors, (16531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:37,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3161 states to 3161 states and 16531 transitions. [2021-10-13 20:06:37,089 INFO L78 Accepts]: Start accepts. Automaton has 3161 states and 16531 transitions. Word has length 14 [2021-10-13 20:06:37,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:06:37,089 INFO L470 AbstractCegarLoop]: Abstraction has 3161 states and 16531 transitions. [2021-10-13 20:06:37,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:37,090 INFO L276 IsEmpty]: Start isEmpty. Operand 3161 states and 16531 transitions. [2021-10-13 20:06:37,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 20:06:37,092 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:06:37,092 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:06:37,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-10-13 20:06:37,305 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 [2021-10-13 20:06:37,305 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:06:37,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:06:37,307 INFO L82 PathProgramCache]: Analyzing trace with hash 396416997, now seen corresponding path program 2 times [2021-10-13 20:06:37,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:06:37,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291220017] [2021-10-13 20:06:37,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 20:06:37,308 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:06:37,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:06:37,309 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) [2021-10-13 20:06:37,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-13 20:06:37,682 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 20:06:37,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:06:37,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:06:37,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:06:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:06:37,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:06:37,951 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:06:37,951 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:06:37,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291220017] [2021-10-13 20:06:37,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291220017] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 20:06:37,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 20:06:37,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-10-13 20:06:37,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292822010] [2021-10-13 20:06:37,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 20:06:37,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:06:37,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 20:06:37,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-13 20:06:37,957 INFO L87 Difference]: Start difference. First operand 3161 states and 16531 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:38,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:06:38,166 INFO L93 Difference]: Finished difference Result 2955 states and 12980 transitions. [2021-10-13 20:06:38,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 20:06:38,167 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 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 15 [2021-10-13 20:06:38,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:06:38,180 INFO L225 Difference]: With dead ends: 2955 [2021-10-13 20:06:38,180 INFO L226 Difference]: Without dead ends: 2924 [2021-10-13 20:06:38,181 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 121.7ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-10-13 20:06:38,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-10-13 20:06:38,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2018. [2021-10-13 20:06:38,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2018 states, 2016 states have (on average 4.742063492063492) internal successors, (9560), 2017 states have internal predecessors, (9560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:38,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2018 states to 2018 states and 9560 transitions. [2021-10-13 20:06:38,343 INFO L78 Accepts]: Start accepts. Automaton has 2018 states and 9560 transitions. Word has length 15 [2021-10-13 20:06:38,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:06:38,344 INFO L470 AbstractCegarLoop]: Abstraction has 2018 states and 9560 transitions. [2021-10-13 20:06:38,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:06:38,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2018 states and 9560 transitions. [2021-10-13 20:06:38,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 20:06:38,348 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:06:38,348 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:06:38,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-10-13 20:06:38,564 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 [2021-10-13 20:06:38,565 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:06:38,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:06:38,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1389509332, now seen corresponding path program 1 times [2021-10-13 20:06:38,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:06:38,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036751585] [2021-10-13 20:06:38,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:06:38,568 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:06:38,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:06:38,569 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) [2021-10-13 20:06:38,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-13 20:06:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:06:38,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:06:38,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:06:39,116 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:06:39,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 313 treesize of output 243 [2021-10-13 20:06:51,182 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 571 treesize of output 561 [2021-10-13 20:06:51,203 INFO L354 Elim1Store]: treesize reduction 913, result has 0.1 percent of original size [2021-10-13 20:06:51,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 561 treesize of output 347 [2021-10-13 20:06:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:06:51,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:06:52,563 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,565 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,566 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,567 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,567 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,568 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,568 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,569 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,569 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,570 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,570 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,571 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,571 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,572 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,572 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,572 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,573 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,573 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,574 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,574 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,574 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,575 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,575 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,575 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,576 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,576 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,576 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,577 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,577 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,577 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,578 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,578 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,579 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,580 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,580 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,581 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,581 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,582 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,582 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,583 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,583 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,583 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,584 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,584 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,585 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,585 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,586 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,586 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,586 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,587 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,587 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,587 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,588 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,588 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,588 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,589 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,589 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,589 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,590 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,590 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,590 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,591 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,591 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,591 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,592 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,592 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 20:06:52,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 269 treesize of output 55 [2021-10-13 20:06:53,233 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:06:53,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 174 treesize of output 104 [2021-10-13 20:06:53,241 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 104 treesize of output 100 [2021-10-13 20:06:53,715 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:06:53,715 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:06:53,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036751585] [2021-10-13 20:06:53,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036751585] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 20:06:53,716 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 20:06:53,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-13 20:06:53,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239567342] [2021-10-13 20:06:53,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 20:06:53,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:06:53,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 20:06:53,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-13 20:06:53,718 INFO L87 Difference]: Start difference. First operand 2018 states and 9560 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:07:02,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:07:02,925 INFO L93 Difference]: Finished difference Result 2699 states and 10872 transitions. [2021-10-13 20:07:02,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 20:07:02,927 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 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 15 [2021-10-13 20:07:02,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:07:02,938 INFO L225 Difference]: With dead ends: 2699 [2021-10-13 20:07:02,938 INFO L226 Difference]: Without dead ends: 2424 [2021-10-13 20:07:02,938 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 9220.3ms TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2021-10-13 20:07:02,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2021-10-13 20:07:03,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 927. [2021-10-13 20:07:03,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 926 states have (on average 4.3207343412527) internal successors, (4001), 926 states have internal predecessors, (4001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:07:03,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 4001 transitions. [2021-10-13 20:07:03,038 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 4001 transitions. Word has length 15 [2021-10-13 20:07:03,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:07:03,038 INFO L470 AbstractCegarLoop]: Abstraction has 927 states and 4001 transitions. [2021-10-13 20:07:03,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:07:03,039 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 4001 transitions. [2021-10-13 20:07:03,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:07:03,049 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:07:03,049 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:07:03,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-13 20:07:03,264 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 [2021-10-13 20:07:03,265 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:07:03,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:07:03,266 INFO L82 PathProgramCache]: Analyzing trace with hash -56142191, now seen corresponding path program 1 times [2021-10-13 20:07:03,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:07:03,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865698559] [2021-10-13 20:07:03,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:07:03,267 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:07:03,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:07:03,268 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) [2021-10-13 20:07:03,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-13 20:07:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:07:03,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 20:07:03,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:07:04,597 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:07:04,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:07:07,594 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:07:07,594 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:07:07,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865698559] [2021-10-13 20:07:07,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865698559] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:07:07,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:07:07,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 12 [2021-10-13 20:07:07,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795707153] [2021-10-13 20:07:07,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 20:07:07,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:07:07,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 20:07:07,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-10-13 20:07:07,597 INFO L87 Difference]: Start difference. First operand 927 states and 4001 transitions. Second operand has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:07:22,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:07:22,462 INFO L93 Difference]: Finished difference Result 1914 states and 7387 transitions. [2021-10-13 20:07:22,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-13 20:07:22,463 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 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 23 [2021-10-13 20:07:22,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:07:22,469 INFO L225 Difference]: With dead ends: 1914 [2021-10-13 20:07:22,469 INFO L226 Difference]: Without dead ends: 1871 [2021-10-13 20:07:22,470 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 11834.9ms TimeCoverageRelationStatistics Valid=315, Invalid=615, Unknown=0, NotChecked=0, Total=930 [2021-10-13 20:07:22,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2021-10-13 20:07:22,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1011. [2021-10-13 20:07:22,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 1010 states have (on average 4.231683168316832) internal successors, (4274), 1010 states have internal predecessors, (4274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:07:22,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 4274 transitions. [2021-10-13 20:07:22,508 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 4274 transitions. Word has length 23 [2021-10-13 20:07:22,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:07:22,508 INFO L470 AbstractCegarLoop]: Abstraction has 1011 states and 4274 transitions. [2021-10-13 20:07:22,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:07:22,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 4274 transitions. [2021-10-13 20:07:22,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:07:22,513 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:07:22,513 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:07:22,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-13 20:07:22,722 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 [2021-10-13 20:07:22,723 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:07:22,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:07:22,724 INFO L82 PathProgramCache]: Analyzing trace with hash 883135751, now seen corresponding path program 2 times [2021-10-13 20:07:22,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:07:22,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602103110] [2021-10-13 20:07:22,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 20:07:22,727 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:07:22,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:07:22,729 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) [2021-10-13 20:07:22,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-13 20:07:23,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 20:07:23,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:07:23,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 20:07:23,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:07:24,160 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:07:24,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:07:30,383 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:07:30,383 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:07:30,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602103110] [2021-10-13 20:07:30,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602103110] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:07:30,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:07:30,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 12 [2021-10-13 20:07:30,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420464642] [2021-10-13 20:07:30,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 20:07:30,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:07:30,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 20:07:30,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-10-13 20:07:30,388 INFO L87 Difference]: Start difference. First operand 1011 states and 4274 transitions. Second operand has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:07:52,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:07:52,135 INFO L93 Difference]: Finished difference Result 2108 states and 7840 transitions. [2021-10-13 20:07:52,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 20:07:52,136 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 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 23 [2021-10-13 20:07:52,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:07:52,142 INFO L225 Difference]: With dead ends: 2108 [2021-10-13 20:07:52,142 INFO L226 Difference]: Without dead ends: 2067 [2021-10-13 20:07:52,142 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 18842.0ms TimeCoverageRelationStatistics Valid=325, Invalid=667, Unknown=0, NotChecked=0, Total=992 [2021-10-13 20:07:52,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2021-10-13 20:07:52,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 1049. [2021-10-13 20:07:52,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 1048 states have (on average 4.262404580152672) internal successors, (4467), 1048 states have internal predecessors, (4467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:07:52,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 4467 transitions. [2021-10-13 20:07:52,201 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 4467 transitions. Word has length 23 [2021-10-13 20:07:52,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:07:52,201 INFO L470 AbstractCegarLoop]: Abstraction has 1049 states and 4467 transitions. [2021-10-13 20:07:52,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:07:52,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 4467 transitions. [2021-10-13 20:07:52,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:07:52,206 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:07:52,206 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:07:52,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-13 20:07:52,420 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 [2021-10-13 20:07:52,421 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:07:52,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:07:52,422 INFO L82 PathProgramCache]: Analyzing trace with hash 736528069, now seen corresponding path program 3 times [2021-10-13 20:07:52,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:07:52,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743791696] [2021-10-13 20:07:52,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 20:07:52,424 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:07:52,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:07:52,425 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) [2021-10-13 20:07:52,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-13 20:07:52,937 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-13 20:07:52,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:07:52,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 20:07:52,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:07:53,924 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:07:53,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:07:58,385 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:07:58,385 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:07:58,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743791696] [2021-10-13 20:07:58,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743791696] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:07:58,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:07:58,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 12 [2021-10-13 20:07:58,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617045902] [2021-10-13 20:07:58,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 20:07:58,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:07:58,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 20:07:58,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-10-13 20:07:58,387 INFO L87 Difference]: Start difference. First operand 1049 states and 4467 transitions. Second operand has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:08:18,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:08:18,564 INFO L93 Difference]: Finished difference Result 2124 states and 7993 transitions. [2021-10-13 20:08:18,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 20:08:18,566 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 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 23 [2021-10-13 20:08:18,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:08:18,571 INFO L225 Difference]: With dead ends: 2124 [2021-10-13 20:08:18,571 INFO L226 Difference]: Without dead ends: 2079 [2021-10-13 20:08:18,571 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 15749.8ms TimeCoverageRelationStatistics Valid=346, Invalid=776, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 20:08:18,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2021-10-13 20:08:18,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 1079. [2021-10-13 20:08:18,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1078 states have (on average 4.241187384044527) internal successors, (4572), 1078 states have internal predecessors, (4572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:08:18,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 4572 transitions. [2021-10-13 20:08:18,612 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 4572 transitions. Word has length 23 [2021-10-13 20:08:18,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:08:18,612 INFO L470 AbstractCegarLoop]: Abstraction has 1079 states and 4572 transitions. [2021-10-13 20:08:18,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:08:18,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 4572 transitions. [2021-10-13 20:08:18,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:08:18,618 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:08:18,618 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:08:18,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2021-10-13 20:08:18,832 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 [2021-10-13 20:08:18,833 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:08:18,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:08:18,833 INFO L82 PathProgramCache]: Analyzing trace with hash -2113840047, now seen corresponding path program 4 times [2021-10-13 20:08:18,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:08:18,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559706132] [2021-10-13 20:08:18,834 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 20:08:18,835 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:08:18,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:08:18,836 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) [2021-10-13 20:08:18,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-13 20:08:19,434 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 20:08:19,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:08:19,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:08:19,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:08:20,873 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:08:20,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:08:25,174 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:08:25,175 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:08:25,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559706132] [2021-10-13 20:08:25,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559706132] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:08:25,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:08:25,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:08:25,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744044081] [2021-10-13 20:08:25,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:08:25,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:08:25,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:08:25,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:08:25,177 INFO L87 Difference]: Start difference. First operand 1079 states and 4572 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:08:36,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:08:36,243 INFO L93 Difference]: Finished difference Result 2123 states and 8246 transitions. [2021-10-13 20:08:36,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 20:08:36,244 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 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 23 [2021-10-13 20:08:36,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:08:36,250 INFO L225 Difference]: With dead ends: 2123 [2021-10-13 20:08:36,250 INFO L226 Difference]: Without dead ends: 2094 [2021-10-13 20:08:36,250 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 9670.9ms TimeCoverageRelationStatistics Valid=197, Invalid=403, Unknown=0, NotChecked=0, Total=600 [2021-10-13 20:08:36,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2021-10-13 20:08:36,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 1146. [2021-10-13 20:08:36,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1145 states have (on average 4.235807860262009) internal successors, (4850), 1145 states have internal predecessors, (4850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:08:36,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 4850 transitions. [2021-10-13 20:08:36,295 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 4850 transitions. Word has length 23 [2021-10-13 20:08:36,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:08:36,295 INFO L470 AbstractCegarLoop]: Abstraction has 1146 states and 4850 transitions. [2021-10-13 20:08:36,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:08:36,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 4850 transitions. [2021-10-13 20:08:36,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:08:36,301 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:08:36,301 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:08:36,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-13 20:08:36,515 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 [2021-10-13 20:08:36,515 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:08:36,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:08:36,516 INFO L82 PathProgramCache]: Analyzing trace with hash -166087543, now seen corresponding path program 5 times [2021-10-13 20:08:36,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:08:36,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026907006] [2021-10-13 20:08:36,517 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 20:08:36,517 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:08:36,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:08:36,518 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) [2021-10-13 20:08:36,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-13 20:08:37,225 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-13 20:08:37,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:08:37,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:08:37,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:08:38,048 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:08:38,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:08:42,786 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:08:42,790 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:08:42,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026907006] [2021-10-13 20:08:42,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026907006] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:08:42,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:08:42,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:08:42,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458655108] [2021-10-13 20:08:42,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:08:42,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:08:42,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:08:42,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:08:42,793 INFO L87 Difference]: Start difference. First operand 1146 states and 4850 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:08:52,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:08:52,448 INFO L93 Difference]: Finished difference Result 2036 states and 7907 transitions. [2021-10-13 20:08:52,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 20:08:52,450 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 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 23 [2021-10-13 20:08:52,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:08:52,455 INFO L225 Difference]: With dead ends: 2036 [2021-10-13 20:08:52,455 INFO L226 Difference]: Without dead ends: 2008 [2021-10-13 20:08:52,455 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 8510.6ms TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2021-10-13 20:08:52,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2021-10-13 20:08:52,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1154. [2021-10-13 20:08:52,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1153 states have (on average 4.214223764093669) internal successors, (4859), 1153 states have internal predecessors, (4859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:08:52,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 4859 transitions. [2021-10-13 20:08:52,494 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 4859 transitions. Word has length 23 [2021-10-13 20:08:52,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:08:52,494 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 4859 transitions. [2021-10-13 20:08:52,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:08:52,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 4859 transitions. [2021-10-13 20:08:52,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:08:52,499 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:08:52,499 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:08:52,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-13 20:08:52,713 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 [2021-10-13 20:08:52,714 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:08:52,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:08:52,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1100164541, now seen corresponding path program 6 times [2021-10-13 20:08:52,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:08:52,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429146366] [2021-10-13 20:08:52,716 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 20:08:52,716 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:08:52,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:08:52,717 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) [2021-10-13 20:08:52,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-13 20:08:53,398 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-13 20:08:53,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:08:53,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:08:53,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:08:54,895 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:08:54,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:09:01,579 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:09:01,579 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:09:01,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429146366] [2021-10-13 20:09:01,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429146366] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:09:01,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:09:01,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:09:01,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558341760] [2021-10-13 20:09:01,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:09:01,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:09:01,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:09:01,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:09:01,581 INFO L87 Difference]: Start difference. First operand 1154 states and 4859 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:09:22,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:09:22,162 INFO L93 Difference]: Finished difference Result 2243 states and 8415 transitions. [2021-10-13 20:09:22,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 20:09:22,163 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 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 23 [2021-10-13 20:09:22,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:09:22,169 INFO L225 Difference]: With dead ends: 2243 [2021-10-13 20:09:22,169 INFO L226 Difference]: Without dead ends: 2214 [2021-10-13 20:09:22,170 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 18987.0ms TimeCoverageRelationStatistics Valid=210, Invalid=440, Unknown=0, NotChecked=0, Total=650 [2021-10-13 20:09:22,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2021-10-13 20:09:22,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1176. [2021-10-13 20:09:22,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1176 states, 1175 states have (on average 4.245106382978723) internal successors, (4988), 1175 states have internal predecessors, (4988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:09:22,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 4988 transitions. [2021-10-13 20:09:22,212 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 4988 transitions. Word has length 23 [2021-10-13 20:09:22,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:09:22,212 INFO L470 AbstractCegarLoop]: Abstraction has 1176 states and 4988 transitions. [2021-10-13 20:09:22,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:09:22,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 4988 transitions. [2021-10-13 20:09:22,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:09:22,217 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:09:22,217 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:09:22,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-10-13 20:09:22,432 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 [2021-10-13 20:09:22,433 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:09:22,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:09:22,433 INFO L82 PathProgramCache]: Analyzing trace with hash -437201075, now seen corresponding path program 7 times [2021-10-13 20:09:22,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:09:22,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533065260] [2021-10-13 20:09:22,434 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 20:09:22,434 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:09:22,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:09:22,436 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) [2021-10-13 20:09:22,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-10-13 20:09:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:09:23,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:09:23,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:09:25,230 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:09:25,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:09:33,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:09:33,069 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:09:33,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533065260] [2021-10-13 20:09:33,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533065260] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:09:33,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:09:33,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:09:33,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031556308] [2021-10-13 20:09:33,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:09:33,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:09:33,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:09:33,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:09:33,071 INFO L87 Difference]: Start difference. First operand 1176 states and 4988 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:09:56,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:09:56,338 INFO L93 Difference]: Finished difference Result 2202 states and 8398 transitions. [2021-10-13 20:09:56,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 20:09:56,339 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 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 23 [2021-10-13 20:09:56,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:09:56,345 INFO L225 Difference]: With dead ends: 2202 [2021-10-13 20:09:56,345 INFO L226 Difference]: Without dead ends: 2177 [2021-10-13 20:09:56,346 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 22072.6ms TimeCoverageRelationStatistics Valid=231, Invalid=471, Unknown=0, NotChecked=0, Total=702 [2021-10-13 20:09:56,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2021-10-13 20:09:56,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 1188. [2021-10-13 20:09:56,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1187 states have (on average 4.2350463352990735) internal successors, (5027), 1187 states have internal predecessors, (5027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:09:56,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 5027 transitions. [2021-10-13 20:09:56,389 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 5027 transitions. Word has length 23 [2021-10-13 20:09:56,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:09:56,389 INFO L470 AbstractCegarLoop]: Abstraction has 1188 states and 5027 transitions. [2021-10-13 20:09:56,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:09:56,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 5027 transitions. [2021-10-13 20:09:56,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:09:56,393 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:09:56,394 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:09:56,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-10-13 20:09:56,594 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 [2021-10-13 20:09:56,595 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:09:56,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:09:56,595 INFO L82 PathProgramCache]: Analyzing trace with hash 850522349, now seen corresponding path program 8 times [2021-10-13 20:09:56,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:09:56,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380311272] [2021-10-13 20:09:56,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 20:09:56,597 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:09:56,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:09:56,598 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) [2021-10-13 20:09:56,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-13 20:09:57,430 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 20:09:57,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:09:57,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:09:57,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:09:58,496 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:09:58,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:10:07,048 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:10:07,049 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:10:07,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380311272] [2021-10-13 20:10:07,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380311272] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:10:07,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:10:07,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:10:07,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083176789] [2021-10-13 20:10:07,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:10:07,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:10:07,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:10:07,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:10:07,051 INFO L87 Difference]: Start difference. First operand 1188 states and 5027 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:10:28,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:10:28,972 INFO L93 Difference]: Finished difference Result 2214 states and 8352 transitions. [2021-10-13 20:10:28,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 20:10:28,973 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 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 23 [2021-10-13 20:10:28,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:10:28,978 INFO L225 Difference]: With dead ends: 2214 [2021-10-13 20:10:28,978 INFO L226 Difference]: Without dead ends: 2187 [2021-10-13 20:10:28,979 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 21253.7ms TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2021-10-13 20:10:28,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2021-10-13 20:10:29,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1204. [2021-10-13 20:10:29,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 1203 states have (on average 4.235245220282627) internal successors, (5095), 1203 states have internal predecessors, (5095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:10:29,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 5095 transitions. [2021-10-13 20:10:29,028 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 5095 transitions. Word has length 23 [2021-10-13 20:10:29,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:10:29,028 INFO L470 AbstractCegarLoop]: Abstraction has 1204 states and 5095 transitions. [2021-10-13 20:10:29,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:10:29,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 5095 transitions. [2021-10-13 20:10:29,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:10:29,032 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:10:29,032 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:10:29,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-10-13 20:10:29,243 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 [2021-10-13 20:10:29,244 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:10:29,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:10:29,246 INFO L82 PathProgramCache]: Analyzing trace with hash 906997837, now seen corresponding path program 9 times [2021-10-13 20:10:29,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:10:29,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016753790] [2021-10-13 20:10:29,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 20:10:29,247 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:10:29,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:10:29,248 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) [2021-10-13 20:10:29,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-13 20:10:30,150 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-13 20:10:30,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:10:30,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:10:30,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:10:31,037 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:10:31,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:10:35,640 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:10:35,640 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:10:35,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016753790] [2021-10-13 20:10:35,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016753790] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:10:35,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:10:35,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:10:35,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052709400] [2021-10-13 20:10:35,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:10:35,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:10:35,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:10:35,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:10:35,643 INFO L87 Difference]: Start difference. First operand 1204 states and 5095 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:10:43,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:10:43,453 INFO L93 Difference]: Finished difference Result 2129 states and 8102 transitions. [2021-10-13 20:10:43,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 20:10:43,455 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 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 23 [2021-10-13 20:10:43,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:10:43,461 INFO L225 Difference]: With dead ends: 2129 [2021-10-13 20:10:43,461 INFO L226 Difference]: Without dead ends: 2101 [2021-10-13 20:10:43,461 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 7357.4ms TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2021-10-13 20:10:43,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2101 states. [2021-10-13 20:10:43,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2101 to 1234. [2021-10-13 20:10:43,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 1233 states have (on average 4.207623682076237) internal successors, (5188), 1233 states have internal predecessors, (5188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:10:43,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 5188 transitions. [2021-10-13 20:10:43,509 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 5188 transitions. Word has length 23 [2021-10-13 20:10:43,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:10:43,509 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 5188 transitions. [2021-10-13 20:10:43,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:10:43,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 5188 transitions. [2021-10-13 20:10:43,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:10:43,515 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:10:43,515 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:10:43,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-10-13 20:10:43,715 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 [2021-10-13 20:10:43,715 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:10:43,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:10:43,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1281135941, now seen corresponding path program 10 times [2021-10-13 20:10:43,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:10:43,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415335751] [2021-10-13 20:10:43,716 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 20:10:43,716 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:10:43,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:10:43,717 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) [2021-10-13 20:10:43,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-10-13 20:10:44,717 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 20:10:44,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:10:44,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:10:44,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:10:45,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:10:45,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:10:52,545 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:10:52,545 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:10:52,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415335751] [2021-10-13 20:10:52,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415335751] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:10:52,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:10:52,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:10:52,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317240250] [2021-10-13 20:10:52,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:10:52,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:10:52,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:10:52,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:10:52,547 INFO L87 Difference]: Start difference. First operand 1234 states and 5188 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:11:04,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:11:04,732 INFO L93 Difference]: Finished difference Result 2110 states and 8088 transitions. [2021-10-13 20:11:04,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 20:11:04,734 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 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 23 [2021-10-13 20:11:04,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:11:04,740 INFO L225 Difference]: With dead ends: 2110 [2021-10-13 20:11:04,741 INFO L226 Difference]: Without dead ends: 2083 [2021-10-13 20:11:04,741 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 11903.0ms TimeCoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2021-10-13 20:11:04,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2021-10-13 20:11:04,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1234. [2021-10-13 20:11:04,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 1233 states have (on average 4.207623682076237) internal successors, (5188), 1233 states have internal predecessors, (5188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:11:04,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 5188 transitions. [2021-10-13 20:11:04,776 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 5188 transitions. Word has length 23 [2021-10-13 20:11:04,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:11:04,776 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 5188 transitions. [2021-10-13 20:11:04,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:11:04,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 5188 transitions. [2021-10-13 20:11:04,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:11:04,780 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:11:04,780 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:11:04,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-10-13 20:11:04,980 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 [2021-10-13 20:11:04,981 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:11:04,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:11:04,982 INFO L82 PathProgramCache]: Analyzing trace with hash -607593489, now seen corresponding path program 11 times [2021-10-13 20:11:04,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:11:04,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357997532] [2021-10-13 20:11:04,983 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 20:11:04,984 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:11:04,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:11:04,985 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) [2021-10-13 20:11:04,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-10-13 20:11:06,216 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-13 20:11:06,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:11:06,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:11:06,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:11:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:11:06,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:11:10,378 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:11:10,378 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:11:10,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357997532] [2021-10-13 20:11:10,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357997532] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:11:10,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:11:10,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:11:10,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422002286] [2021-10-13 20:11:10,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:11:10,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:11:10,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:11:10,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:11:10,380 INFO L87 Difference]: Start difference. First operand 1234 states and 5188 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:11:17,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:11:17,368 INFO L93 Difference]: Finished difference Result 1604 states and 6257 transitions. [2021-10-13 20:11:17,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 20:11:17,370 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 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 23 [2021-10-13 20:11:17,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:11:17,374 INFO L225 Difference]: With dead ends: 1604 [2021-10-13 20:11:17,374 INFO L226 Difference]: Without dead ends: 1576 [2021-10-13 20:11:17,375 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 6409.4ms TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2021-10-13 20:11:17,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-10-13 20:11:17,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1246. [2021-10-13 20:11:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1245 states have (on average 4.195983935742972) internal successors, (5224), 1245 states have internal predecessors, (5224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:11:17,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 5224 transitions. [2021-10-13 20:11:17,417 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 5224 transitions. Word has length 23 [2021-10-13 20:11:17,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:11:17,417 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 5224 transitions. [2021-10-13 20:11:17,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:11:17,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 5224 transitions. [2021-10-13 20:11:17,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:11:17,424 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:11:17,424 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:11:17,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-10-13 20:11:17,625 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 [2021-10-13 20:11:17,625 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:11:17,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:11:17,625 INFO L82 PathProgramCache]: Analyzing trace with hash -836687453, now seen corresponding path program 12 times [2021-10-13 20:11:17,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:11:17,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765993480] [2021-10-13 20:11:17,626 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 20:11:17,626 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:11:17,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:11:17,627 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) [2021-10-13 20:11:17,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-10-13 20:11:18,799 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-13 20:11:18,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:11:18,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:11:18,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:11:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:11:19,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:11:24,123 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:11:24,124 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:11:24,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765993480] [2021-10-13 20:11:24,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765993480] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:11:24,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:11:24,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:11:24,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123996945] [2021-10-13 20:11:24,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:11:24,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:11:24,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:11:24,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:11:24,125 INFO L87 Difference]: Start difference. First operand 1246 states and 5224 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:11:34,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:11:34,990 INFO L93 Difference]: Finished difference Result 1655 states and 6376 transitions. [2021-10-13 20:11:34,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 20:11:34,991 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 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 23 [2021-10-13 20:11:34,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:11:34,996 INFO L225 Difference]: With dead ends: 1655 [2021-10-13 20:11:34,996 INFO L226 Difference]: Without dead ends: 1628 [2021-10-13 20:11:34,997 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 10267.6ms TimeCoverageRelationStatistics Valid=181, Invalid=419, Unknown=0, NotChecked=0, Total=600 [2021-10-13 20:11:34,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2021-10-13 20:11:35,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1234. [2021-10-13 20:11:35,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 1233 states have (on average 4.207623682076237) internal successors, (5188), 1233 states have internal predecessors, (5188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:11:35,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 5188 transitions. [2021-10-13 20:11:35,025 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 5188 transitions. Word has length 23 [2021-10-13 20:11:35,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:11:35,025 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 5188 transitions. [2021-10-13 20:11:35,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:11:35,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 5188 transitions. [2021-10-13 20:11:35,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:11:35,028 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:11:35,029 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:11:35,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2021-10-13 20:11:35,229 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 [2021-10-13 20:11:35,229 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:11:35,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:11:35,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1740132059, now seen corresponding path program 13 times [2021-10-13 20:11:35,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:11:35,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188354670] [2021-10-13 20:11:35,231 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 20:11:35,232 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:11:35,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:11:35,233 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) [2021-10-13 20:11:35,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-10-13 20:11:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:11:36,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 20:11:36,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:11:37,283 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:11:37,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:11:40,267 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:11:40,267 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:11:40,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188354670] [2021-10-13 20:11:40,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188354670] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:11:40,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:11:40,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:11:40,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107961020] [2021-10-13 20:11:40,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:11:40,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:11:40,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:11:40,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:11:40,270 INFO L87 Difference]: Start difference. First operand 1234 states and 5188 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:11:53,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:11:53,973 INFO L93 Difference]: Finished difference Result 2362 states and 8989 transitions. [2021-10-13 20:11:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 20:11:53,973 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:11:53,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:11:53,981 INFO L225 Difference]: With dead ends: 2362 [2021-10-13 20:11:53,981 INFO L226 Difference]: Without dead ends: 2310 [2021-10-13 20:11:53,982 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 11590.2ms TimeCoverageRelationStatistics Valid=361, Invalid=695, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 20:11:53,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2021-10-13 20:11:54,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 1278. [2021-10-13 20:11:54,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1277 states have (on average 4.215348472983555) internal successors, (5383), 1277 states have internal predecessors, (5383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:11:54,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 5383 transitions. [2021-10-13 20:11:54,034 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 5383 transitions. Word has length 23 [2021-10-13 20:11:54,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:11:54,034 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 5383 transitions. [2021-10-13 20:11:54,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:11:54,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 5383 transitions. [2021-10-13 20:11:54,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:11:54,039 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:11:54,039 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:11:54,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Ended with exit code 0 [2021-10-13 20:11:54,253 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 [2021-10-13 20:11:54,254 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:11:54,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:11:54,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1615557295, now seen corresponding path program 14 times [2021-10-13 20:11:54,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:11:54,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898190298] [2021-10-13 20:11:54,256 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 20:11:54,256 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:11:54,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:11:54,257 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) [2021-10-13 20:11:54,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-10-13 20:11:55,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 20:11:55,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:11:55,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 20:11:55,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:11:56,472 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:11:56,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:12:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:12:01,887 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:12:01,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898190298] [2021-10-13 20:12:01,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898190298] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:12:01,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:12:01,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:12:01,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259271243] [2021-10-13 20:12:01,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:12:01,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:12:01,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:12:01,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:12:01,897 INFO L87 Difference]: Start difference. First operand 1278 states and 5383 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:20,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:12:20,987 INFO L93 Difference]: Finished difference Result 2378 states and 8752 transitions. [2021-10-13 20:12:20,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 20:12:20,987 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:12:20,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:12:20,994 INFO L225 Difference]: With dead ends: 2378 [2021-10-13 20:12:20,994 INFO L226 Difference]: Without dead ends: 2330 [2021-10-13 20:12:20,995 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 16976.0ms TimeCoverageRelationStatistics Valid=371, Invalid=751, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 20:12:20,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2021-10-13 20:12:21,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 1296. [2021-10-13 20:12:21,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1295 states have (on average 4.224710424710425) internal successors, (5471), 1295 states have internal predecessors, (5471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:21,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5471 transitions. [2021-10-13 20:12:21,031 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5471 transitions. Word has length 23 [2021-10-13 20:12:21,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:12:21,032 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5471 transitions. [2021-10-13 20:12:21,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:21,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5471 transitions. [2021-10-13 20:12:21,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:12:21,036 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:12:21,036 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:12:21,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Ended with exit code 0 [2021-10-13 20:12:21,250 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 [2021-10-13 20:12:21,251 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:12:21,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:12:21,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1762164977, now seen corresponding path program 15 times [2021-10-13 20:12:21,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:12:21,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343742500] [2021-10-13 20:12:21,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 20:12:21,253 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:12:21,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:12:21,255 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) [2021-10-13 20:12:21,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-10-13 20:12:22,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-13 20:12:22,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:12:22,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 20:12:22,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:12:23,629 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:12:23,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:12:28,056 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:12:28,056 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:12:28,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343742500] [2021-10-13 20:12:28,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343742500] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:12:28,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:12:28,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:12:28,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120708212] [2021-10-13 20:12:28,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:12:28,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:12:28,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:12:28,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:12:28,058 INFO L87 Difference]: Start difference. First operand 1296 states and 5471 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:39,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:12:39,826 INFO L93 Difference]: Finished difference Result 2148 states and 8212 transitions. [2021-10-13 20:12:39,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 20:12:39,827 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:12:39,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:12:39,836 INFO L225 Difference]: With dead ends: 2148 [2021-10-13 20:12:39,836 INFO L226 Difference]: Without dead ends: 2110 [2021-10-13 20:12:39,837 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 9969.5ms TimeCoverageRelationStatistics Valid=317, Invalid=613, Unknown=0, NotChecked=0, Total=930 [2021-10-13 20:12:39,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2021-10-13 20:12:39,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 1280. [2021-10-13 20:12:39,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1279 states have (on average 4.222048475371384) internal successors, (5400), 1279 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:39,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 5400 transitions. [2021-10-13 20:12:39,893 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 5400 transitions. Word has length 23 [2021-10-13 20:12:39,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:12:39,894 INFO L470 AbstractCegarLoop]: Abstraction has 1280 states and 5400 transitions. [2021-10-13 20:12:39,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:39,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 5400 transitions. [2021-10-13 20:12:39,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:12:39,899 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:12:39,899 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:12:39,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Ended with exit code 0 [2021-10-13 20:12:40,113 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 [2021-10-13 20:12:40,113 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:12:40,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:12:40,114 INFO L82 PathProgramCache]: Analyzing trace with hash -643537619, now seen corresponding path program 16 times [2021-10-13 20:12:40,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:12:40,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872181996] [2021-10-13 20:12:40,115 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 20:12:40,115 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:12:40,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:12:40,116 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) [2021-10-13 20:12:40,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-10-13 20:12:41,700 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 20:12:41,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:12:41,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:12:41,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:12:42,114 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:12:42,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:12:43,795 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:12:43,796 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:12:43,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872181996] [2021-10-13 20:12:43,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [872181996] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:12:43,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:12:43,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-13 20:12:43,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748538554] [2021-10-13 20:12:43,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 20:12:43,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:12:43,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 20:12:43,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 20:12:43,797 INFO L87 Difference]: Start difference. First operand 1280 states and 5400 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:44,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:12:44,657 INFO L93 Difference]: Finished difference Result 1481 states and 5984 transitions. [2021-10-13 20:12:44,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 20:12:44,658 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:12:44,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:12:44,662 INFO L225 Difference]: With dead ends: 1481 [2021-10-13 20:12:44,662 INFO L226 Difference]: Without dead ends: 1450 [2021-10-13 20:12:44,663 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 651.0ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:12:44,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2021-10-13 20:12:44,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1296. [2021-10-13 20:12:44,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1295 states have (on average 4.205405405405405) internal successors, (5446), 1295 states have internal predecessors, (5446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:44,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5446 transitions. [2021-10-13 20:12:44,702 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5446 transitions. Word has length 23 [2021-10-13 20:12:44,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:12:44,703 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5446 transitions. [2021-10-13 20:12:44,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:44,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5446 transitions. [2021-10-13 20:12:44,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:12:44,706 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:12:44,707 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:12:44,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-10-13 20:12:44,907 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 [2021-10-13 20:12:44,907 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:12:44,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:12:44,908 INFO L82 PathProgramCache]: Analyzing trace with hash -380584421, now seen corresponding path program 17 times [2021-10-13 20:12:44,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:12:44,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659478840] [2021-10-13 20:12:44,909 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 20:12:44,909 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:12:44,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:12:44,910 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) [2021-10-13 20:12:44,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-10-13 20:12:46,738 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-13 20:12:46,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:12:46,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:12:46,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:12:47,283 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:12:47,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:12:50,170 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:12:50,170 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:12:50,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659478840] [2021-10-13 20:12:50,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659478840] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:12:50,171 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:12:50,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-13 20:12:50,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969397898] [2021-10-13 20:12:50,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 20:12:50,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:12:50,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 20:12:50,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-13 20:12:50,172 INFO L87 Difference]: Start difference. First operand 1296 states and 5446 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:50,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:12:50,887 INFO L93 Difference]: Finished difference Result 1575 states and 6307 transitions. [2021-10-13 20:12:50,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 20:12:50,888 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:12:50,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:12:50,893 INFO L225 Difference]: With dead ends: 1575 [2021-10-13 20:12:50,894 INFO L226 Difference]: Without dead ends: 1544 [2021-10-13 20:12:50,894 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1037.2ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:12:50,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2021-10-13 20:12:50,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1320. [2021-10-13 20:12:50,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 4.212282031842305) internal successors, (5556), 1319 states have internal predecessors, (5556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:50,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 5556 transitions. [2021-10-13 20:12:50,926 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 5556 transitions. Word has length 23 [2021-10-13 20:12:50,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:12:50,926 INFO L470 AbstractCegarLoop]: Abstraction has 1320 states and 5556 transitions. [2021-10-13 20:12:50,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:50,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 5556 transitions. [2021-10-13 20:12:50,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:12:50,930 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:12:50,930 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:12:50,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Ended with exit code 0 [2021-10-13 20:12:51,130 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 [2021-10-13 20:12:51,131 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:12:51,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:12:51,131 INFO L82 PathProgramCache]: Analyzing trace with hash -212588281, now seen corresponding path program 18 times [2021-10-13 20:12:51,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:12:51,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543565308] [2021-10-13 20:12:51,132 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 20:12:51,133 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:12:51,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:12:51,134 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) [2021-10-13 20:12:51,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-10-13 20:12:52,783 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-13 20:12:52,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:12:52,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:12:52,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:12:53,348 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:12:53,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:12:56,569 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:12:56,570 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:12:56,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543565308] [2021-10-13 20:12:56,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543565308] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:12:56,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:12:56,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-13 20:12:56,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640956200] [2021-10-13 20:12:56,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 20:12:56,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:12:56,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 20:12:56,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-13 20:12:56,571 INFO L87 Difference]: Start difference. First operand 1320 states and 5556 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:57,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:12:57,529 INFO L93 Difference]: Finished difference Result 1529 states and 6171 transitions. [2021-10-13 20:12:57,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 20:12:57,530 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:12:57,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:12:57,534 INFO L225 Difference]: With dead ends: 1529 [2021-10-13 20:12:57,534 INFO L226 Difference]: Without dead ends: 1500 [2021-10-13 20:12:57,535 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1049.2ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:12:57,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2021-10-13 20:12:57,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1286. [2021-10-13 20:12:57,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 4.180544747081712) internal successors, (5372), 1285 states have internal predecessors, (5372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:57,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5372 transitions. [2021-10-13 20:12:57,561 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5372 transitions. Word has length 23 [2021-10-13 20:12:57,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:12:57,561 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5372 transitions. [2021-10-13 20:12:57,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:12:57,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5372 transitions. [2021-10-13 20:12:57,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:12:57,564 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:12:57,565 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:12:57,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-10-13 20:12:57,766 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 [2021-10-13 20:12:57,767 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:12:57,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:12:57,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1864463669, now seen corresponding path program 19 times [2021-10-13 20:12:57,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:12:57,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811320610] [2021-10-13 20:12:57,768 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 20:12:57,769 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:12:57,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:12:57,770 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) [2021-10-13 20:12:57,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-10-13 20:12:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:12:59,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:12:59,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:13:00,677 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:13:00,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:13:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:13:04,949 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:13:04,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811320610] [2021-10-13 20:13:04,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811320610] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:13:04,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:13:04,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:13:04,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134870841] [2021-10-13 20:13:04,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:13:04,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:13:04,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:13:04,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:13:04,951 INFO L87 Difference]: Start difference. First operand 1286 states and 5372 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:13:10,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:13:10,457 INFO L93 Difference]: Finished difference Result 1834 states and 6795 transitions. [2021-10-13 20:13:10,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 20:13:10,459 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:13:10,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:13:10,465 INFO L225 Difference]: With dead ends: 1834 [2021-10-13 20:13:10,466 INFO L226 Difference]: Without dead ends: 1805 [2021-10-13 20:13:10,466 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 5377.2ms TimeCoverageRelationStatistics Valid=198, Invalid=402, Unknown=0, NotChecked=0, Total=600 [2021-10-13 20:13:10,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2021-10-13 20:13:10,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1332. [2021-10-13 20:13:10,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 4.138993238166792) internal successors, (5509), 1331 states have internal predecessors, (5509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:13:10,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 5509 transitions. [2021-10-13 20:13:10,511 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 5509 transitions. Word has length 23 [2021-10-13 20:13:10,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:13:10,511 INFO L470 AbstractCegarLoop]: Abstraction has 1332 states and 5509 transitions. [2021-10-13 20:13:10,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:13:10,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 5509 transitions. [2021-10-13 20:13:10,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:13:10,516 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:13:10,516 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:13:10,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-10-13 20:13:10,733 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 [2021-10-13 20:13:10,733 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:13:10,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:13:10,734 INFO L82 PathProgramCache]: Analyzing trace with hash -482751123, now seen corresponding path program 20 times [2021-10-13 20:13:10,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:13:10,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563346065] [2021-10-13 20:13:10,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 20:13:10,737 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:13:10,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:13:10,738 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) [2021-10-13 20:13:10,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-10-13 20:13:12,568 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 20:13:12,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:13:12,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:13:12,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:13:13,252 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:13:13,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:13:17,172 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:13:17,173 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:13:17,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563346065] [2021-10-13 20:13:17,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563346065] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:13:17,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:13:17,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:13:17,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297619791] [2021-10-13 20:13:17,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:13:17,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:13:17,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:13:17,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:13:17,175 INFO L87 Difference]: Start difference. First operand 1332 states and 5509 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:13:19,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:13:19,970 INFO L93 Difference]: Finished difference Result 1734 states and 6572 transitions. [2021-10-13 20:13:19,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 20:13:19,971 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:13:19,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:13:19,975 INFO L225 Difference]: With dead ends: 1734 [2021-10-13 20:13:19,975 INFO L226 Difference]: Without dead ends: 1706 [2021-10-13 20:13:19,976 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2715.7ms TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-10-13 20:13:19,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2021-10-13 20:13:19,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1314. [2021-10-13 20:13:20,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1313 states have (on average 4.153846153846154) internal successors, (5454), 1313 states have internal predecessors, (5454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:13:20,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 5454 transitions. [2021-10-13 20:13:20,006 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 5454 transitions. Word has length 23 [2021-10-13 20:13:20,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:13:20,008 INFO L470 AbstractCegarLoop]: Abstraction has 1314 states and 5454 transitions. [2021-10-13 20:13:20,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:13:20,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 5454 transitions. [2021-10-13 20:13:20,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:13:20,013 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:13:20,013 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:13:20,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-10-13 20:13:20,213 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 [2021-10-13 20:13:20,214 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:13:20,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:13:20,214 INFO L82 PathProgramCache]: Analyzing trace with hash 788752513, now seen corresponding path program 21 times [2021-10-13 20:13:20,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:13:20,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056028241] [2021-10-13 20:13:20,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 20:13:20,215 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:13:20,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:13:20,216 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) [2021-10-13 20:13:20,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-10-13 20:13:21,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-13 20:13:21,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:13:21,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:13:21,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:13:22,302 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:13:22,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:13:23,838 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:13:23,838 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:13:23,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056028241] [2021-10-13 20:13:23,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056028241] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:13:23,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:13:23,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-13 20:13:23,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629456201] [2021-10-13 20:13:23,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 20:13:23,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:13:23,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 20:13:23,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 20:13:23,842 INFO L87 Difference]: Start difference. First operand 1314 states and 5454 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:13:24,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:13:24,586 INFO L93 Difference]: Finished difference Result 1535 states and 6069 transitions. [2021-10-13 20:13:24,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 20:13:24,586 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:13:24,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:13:24,591 INFO L225 Difference]: With dead ends: 1535 [2021-10-13 20:13:24,591 INFO L226 Difference]: Without dead ends: 1504 [2021-10-13 20:13:24,591 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 653.2ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:13:24,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2021-10-13 20:13:24,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1304. [2021-10-13 20:13:24,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1303 states have (on average 4.158864159631619) internal successors, (5419), 1303 states have internal predecessors, (5419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:13:24,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 5419 transitions. [2021-10-13 20:13:24,620 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 5419 transitions. Word has length 23 [2021-10-13 20:13:24,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:13:24,620 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 5419 transitions. [2021-10-13 20:13:24,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:13:24,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 5419 transitions. [2021-10-13 20:13:24,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:13:24,625 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:13:24,625 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:13:24,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-10-13 20:13:24,840 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 [2021-10-13 20:13:24,841 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:13:24,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:13:24,841 INFO L82 PathProgramCache]: Analyzing trace with hash 620702849, now seen corresponding path program 22 times [2021-10-13 20:13:24,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:13:24,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955108167] [2021-10-13 20:13:24,843 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 20:13:24,843 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:13:24,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:13:24,844 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) [2021-10-13 20:13:24,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-10-13 20:13:26,539 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 20:13:26,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:13:26,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:13:26,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:13:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:13:27,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:13:34,669 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:13:34,669 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:13:34,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955108167] [2021-10-13 20:13:34,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955108167] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:13:34,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:13:34,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:13:34,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315807839] [2021-10-13 20:13:34,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:13:34,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:13:34,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:13:34,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:13:34,671 INFO L87 Difference]: Start difference. First operand 1304 states and 5419 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:13:48,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:13:48,436 INFO L93 Difference]: Finished difference Result 2134 states and 7975 transitions. [2021-10-13 20:13:48,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 20:13:48,437 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:13:48,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:13:48,452 INFO L225 Difference]: With dead ends: 2134 [2021-10-13 20:13:48,453 INFO L226 Difference]: Without dead ends: 2105 [2021-10-13 20:13:48,453 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 13931.3ms TimeCoverageRelationStatistics Valid=208, Invalid=442, Unknown=0, NotChecked=0, Total=650 [2021-10-13 20:13:48,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2021-10-13 20:13:48,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 1316. [2021-10-13 20:13:48,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 1315 states have (on average 4.178707224334601) internal successors, (5495), 1315 states have internal predecessors, (5495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:13:48,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 5495 transitions. [2021-10-13 20:13:48,485 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 5495 transitions. Word has length 23 [2021-10-13 20:13:48,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:13:48,485 INFO L470 AbstractCegarLoop]: Abstraction has 1316 states and 5495 transitions. [2021-10-13 20:13:48,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:13:48,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 5495 transitions. [2021-10-13 20:13:48,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:13:48,488 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:13:48,489 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:13:48,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-10-13 20:13:48,689 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 [2021-10-13 20:13:48,690 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:13:48,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:13:48,691 INFO L82 PathProgramCache]: Analyzing trace with hash -916662767, now seen corresponding path program 23 times [2021-10-13 20:13:48,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:13:48,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615211033] [2021-10-13 20:13:48,692 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 20:13:48,692 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:13:48,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:13:48,693 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) [2021-10-13 20:13:48,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-10-13 20:13:50,711 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-13 20:13:50,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:13:50,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:13:50,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:13:52,564 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:13:52,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:13:59,441 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:13:59,441 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:13:59,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615211033] [2021-10-13 20:13:59,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615211033] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:13:59,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:13:59,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:13:59,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078074735] [2021-10-13 20:13:59,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:13:59,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:13:59,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:13:59,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:13:59,442 INFO L87 Difference]: Start difference. First operand 1316 states and 5495 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:14:10,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:14:10,887 INFO L93 Difference]: Finished difference Result 2146 states and 8054 transitions. [2021-10-13 20:14:10,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 20:14:10,888 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:14:10,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:14:10,893 INFO L225 Difference]: With dead ends: 2146 [2021-10-13 20:14:10,893 INFO L226 Difference]: Without dead ends: 2125 [2021-10-13 20:14:10,893 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 11685.3ms TimeCoverageRelationStatistics Valid=238, Invalid=464, Unknown=0, NotChecked=0, Total=702 [2021-10-13 20:14:10,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2125 states. [2021-10-13 20:14:10,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2125 to 1316. [2021-10-13 20:14:10,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 1315 states have (on average 4.178707224334601) internal successors, (5495), 1315 states have internal predecessors, (5495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:14:10,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 5495 transitions. [2021-10-13 20:14:10,941 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 5495 transitions. Word has length 23 [2021-10-13 20:14:10,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:14:10,941 INFO L470 AbstractCegarLoop]: Abstraction has 1316 states and 5495 transitions. [2021-10-13 20:14:10,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:14:10,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 5495 transitions. [2021-10-13 20:14:10,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:14:10,944 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:14:10,945 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:14:10,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-10-13 20:14:11,145 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 [2021-10-13 20:14:11,146 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:14:11,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:14:11,147 INFO L82 PathProgramCache]: Analyzing trace with hash 371060657, now seen corresponding path program 24 times [2021-10-13 20:14:11,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:14:11,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562897610] [2021-10-13 20:14:11,148 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 20:14:11,148 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:14:11,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:14:11,149 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) [2021-10-13 20:14:11,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-10-13 20:14:12,993 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-13 20:14:12,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:14:13,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:14:13,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:14:13,973 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:14:13,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:14:21,832 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:14:21,833 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:14:21,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562897610] [2021-10-13 20:14:21,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562897610] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:14:21,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:14:21,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:14:21,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132890601] [2021-10-13 20:14:21,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:14:21,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:14:21,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:14:21,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:14:21,835 INFO L87 Difference]: Start difference. First operand 1316 states and 5495 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:14:33,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:14:33,919 INFO L93 Difference]: Finished difference Result 2166 states and 8051 transitions. [2021-10-13 20:14:33,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 20:14:33,920 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:14:33,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:14:33,926 INFO L225 Difference]: With dead ends: 2166 [2021-10-13 20:14:33,926 INFO L226 Difference]: Without dead ends: 2139 [2021-10-13 20:14:33,927 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 12261.7ms TimeCoverageRelationStatistics Valid=188, Invalid=412, Unknown=0, NotChecked=0, Total=600 [2021-10-13 20:14:33,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2021-10-13 20:14:33,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 1304. [2021-10-13 20:14:33,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1303 states have (on average 4.158864159631619) internal successors, (5419), 1303 states have internal predecessors, (5419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:14:33,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 5419 transitions. [2021-10-13 20:14:33,960 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 5419 transitions. Word has length 23 [2021-10-13 20:14:33,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:14:33,961 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 5419 transitions. [2021-10-13 20:14:33,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:14:33,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 5419 transitions. [2021-10-13 20:14:33,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:14:33,964 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:14:33,964 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:14:33,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Ended with exit code 0 [2021-10-13 20:14:34,164 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 [2021-10-13 20:14:34,165 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:14:34,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:14:34,165 INFO L82 PathProgramCache]: Analyzing trace with hash 801674249, now seen corresponding path program 25 times [2021-10-13 20:14:34,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:14:34,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766813302] [2021-10-13 20:14:34,166 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 20:14:34,166 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:14:34,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:14:34,167 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) [2021-10-13 20:14:34,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-10-13 20:14:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:14:36,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 20:14:36,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:14:37,169 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:14:37,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:14:44,348 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:14:44,348 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:14:44,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766813302] [2021-10-13 20:14:44,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766813302] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:14:44,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:14:44,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 20:14:44,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953230028] [2021-10-13 20:14:44,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 20:14:44,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:14:44,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 20:14:44,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:14:44,350 INFO L87 Difference]: Start difference. First operand 1304 states and 5419 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:14:53,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:14:53,745 INFO L93 Difference]: Finished difference Result 1972 states and 7542 transitions. [2021-10-13 20:14:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 20:14:53,746 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:14:53,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:14:53,751 INFO L225 Difference]: With dead ends: 1972 [2021-10-13 20:14:53,751 INFO L226 Difference]: Without dead ends: 1945 [2021-10-13 20:14:53,752 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 9602.0ms TimeCoverageRelationStatistics Valid=191, Invalid=409, Unknown=0, NotChecked=0, Total=600 [2021-10-13 20:14:53,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2021-10-13 20:14:53,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1290. [2021-10-13 20:14:53,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 1289 states have (on average 4.149728471683476) internal successors, (5349), 1289 states have internal predecessors, (5349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:14:53,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 5349 transitions. [2021-10-13 20:14:53,782 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 5349 transitions. Word has length 23 [2021-10-13 20:14:53,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:14:53,782 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 5349 transitions. [2021-10-13 20:14:53,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:14:53,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 5349 transitions. [2021-10-13 20:14:53,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:14:53,786 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:14:53,786 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:14:53,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-10-13 20:14:53,986 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 [2021-10-13 20:14:53,987 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:14:53,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:14:53,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1638646933, now seen corresponding path program 26 times [2021-10-13 20:14:53,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:14:53,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423677231] [2021-10-13 20:14:53,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 20:14:53,989 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:14:53,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:14:53,990 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) [2021-10-13 20:14:53,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-10-13 20:14:56,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 20:14:56,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:14:56,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:14:56,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:14:56,802 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:14:56,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:14:59,486 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:14:59,486 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:14:59,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423677231] [2021-10-13 20:14:59,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423677231] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:14:59,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:14:59,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-13 20:14:59,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221515868] [2021-10-13 20:14:59,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 20:14:59,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:14:59,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 20:14:59,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-13 20:14:59,488 INFO L87 Difference]: Start difference. First operand 1290 states and 5349 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:00,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:15:00,386 INFO L93 Difference]: Finished difference Result 1549 states and 6046 transitions. [2021-10-13 20:15:00,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 20:15:00,387 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:15:00,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:15:00,392 INFO L225 Difference]: With dead ends: 1549 [2021-10-13 20:15:00,393 INFO L226 Difference]: Without dead ends: 1518 [2021-10-13 20:15:00,393 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1092.1ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:15:00,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2021-10-13 20:15:00,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1276. [2021-10-13 20:15:00,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 4.151372549019608) internal successors, (5293), 1275 states have internal predecessors, (5293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:00,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 5293 transitions. [2021-10-13 20:15:00,431 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 5293 transitions. Word has length 23 [2021-10-13 20:15:00,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:15:00,432 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 5293 transitions. [2021-10-13 20:15:00,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:00,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 5293 transitions. [2021-10-13 20:15:00,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 20:15:00,436 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:15:00,436 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:15:00,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-10-13 20:15:00,637 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 [2021-10-13 20:15:00,637 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:15:00,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:15:00,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1806643073, now seen corresponding path program 27 times [2021-10-13 20:15:00,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:15:00,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334084339] [2021-10-13 20:15:00,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 20:15:00,640 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:15:00,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:15:00,641 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) [2021-10-13 20:15:00,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-10-13 20:15:03,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-13 20:15:03,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:15:03,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:15:03,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:15:03,724 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:03,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:15:06,805 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:06,805 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:15:06,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334084339] [2021-10-13 20:15:06,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334084339] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:15:06,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:15:06,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-13 20:15:06,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104969398] [2021-10-13 20:15:06,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 20:15:06,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:15:06,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 20:15:06,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-13 20:15:06,807 INFO L87 Difference]: Start difference. First operand 1276 states and 5293 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:07,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:15:07,771 INFO L93 Difference]: Finished difference Result 1475 states and 5841 transitions. [2021-10-13 20:15:07,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 20:15:07,772 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2021-10-13 20:15:07,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:15:07,776 INFO L225 Difference]: With dead ends: 1475 [2021-10-13 20:15:07,776 INFO L226 Difference]: Without dead ends: 1448 [2021-10-13 20:15:07,776 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1078.2ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:15:07,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2021-10-13 20:15:07,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1242. [2021-10-13 20:15:07,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1241 states have (on average 4.107171635777599) internal successors, (5097), 1241 states have internal predecessors, (5097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:07,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 5097 transitions. [2021-10-13 20:15:07,806 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 5097 transitions. Word has length 23 [2021-10-13 20:15:07,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:15:07,806 INFO L470 AbstractCegarLoop]: Abstraction has 1242 states and 5097 transitions. [2021-10-13 20:15:07,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:07,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 5097 transitions. [2021-10-13 20:15:07,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:15:07,811 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:15:07,811 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:15:07,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-10-13 20:15:08,025 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 [2021-10-13 20:15:08,026 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:15:08,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:15:08,026 INFO L82 PathProgramCache]: Analyzing trace with hash 109456080, now seen corresponding path program 1 times [2021-10-13 20:15:08,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:15:08,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507967751] [2021-10-13 20:15:08,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:15:08,028 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:15:08,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:15:08,029 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) [2021-10-13 20:15:08,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-10-13 20:15:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:15:10,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:15:10,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:15:11,096 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:11,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:15:12,148 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:12,148 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:15:12,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507967751] [2021-10-13 20:15:12,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507967751] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 20:15:12,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 20:15:12,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-10-13 20:15:12,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472839134] [2021-10-13 20:15:12,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 20:15:12,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:15:12,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 20:15:12,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:15:12,150 INFO L87 Difference]: Start difference. First operand 1242 states and 5097 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:13,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:15:13,254 INFO L93 Difference]: Finished difference Result 1844 states and 7058 transitions. [2021-10-13 20:15:13,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 20:15:13,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 24 [2021-10-13 20:15:13,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:15:13,262 INFO L225 Difference]: With dead ends: 1844 [2021-10-13 20:15:13,263 INFO L226 Difference]: Without dead ends: 1844 [2021-10-13 20:15:13,263 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1017.2ms TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2021-10-13 20:15:13,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2021-10-13 20:15:13,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1274. [2021-10-13 20:15:13,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 4.116260801256874) internal successors, (5240), 1273 states have internal predecessors, (5240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:13,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 5240 transitions. [2021-10-13 20:15:13,293 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 5240 transitions. Word has length 24 [2021-10-13 20:15:13,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:15:13,294 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 5240 transitions. [2021-10-13 20:15:13,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:13,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 5240 transitions. [2021-10-13 20:15:13,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:15:13,299 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:15:13,299 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:15:13,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (53)] Ended with exit code 0 [2021-10-13 20:15:13,506 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 [2021-10-13 20:15:13,507 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:15:13,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:15:13,507 INFO L82 PathProgramCache]: Analyzing trace with hash -629549326, now seen corresponding path program 2 times [2021-10-13 20:15:13,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:15:13,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277562852] [2021-10-13 20:15:13,508 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 20:15:13,508 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:15:13,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:15:13,509 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) [2021-10-13 20:15:13,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-10-13 20:15:15,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 20:15:15,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:15:16,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:15:16,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:15:16,598 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:16,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:15:17,415 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:17,415 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:15:17,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277562852] [2021-10-13 20:15:17,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277562852] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 20:15:17,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 20:15:17,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2021-10-13 20:15:17,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510656112] [2021-10-13 20:15:17,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 20:15:17,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:15:17,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 20:15:17,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-10-13 20:15:17,418 INFO L87 Difference]: Start difference. First operand 1274 states and 5240 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:18,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:15:18,365 INFO L93 Difference]: Finished difference Result 1876 states and 7213 transitions. [2021-10-13 20:15:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 20:15:18,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 24 [2021-10-13 20:15:18,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:15:18,373 INFO L225 Difference]: With dead ends: 1876 [2021-10-13 20:15:18,373 INFO L226 Difference]: Without dead ends: 1876 [2021-10-13 20:15:18,373 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 722.6ms TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-10-13 20:15:18,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2021-10-13 20:15:18,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1286. [2021-10-13 20:15:18,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 4.109727626459144) internal successors, (5281), 1285 states have internal predecessors, (5281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:18,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5281 transitions. [2021-10-13 20:15:18,405 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5281 transitions. Word has length 24 [2021-10-13 20:15:18,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:15:18,406 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5281 transitions. [2021-10-13 20:15:18,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:18,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5281 transitions. [2021-10-13 20:15:18,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:15:18,409 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:15:18,409 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:15:18,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2021-10-13 20:15:18,609 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 [2021-10-13 20:15:18,610 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:15:18,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:15:18,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1745650, now seen corresponding path program 3 times [2021-10-13 20:15:18,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:15:18,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584798509] [2021-10-13 20:15:18,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 20:15:18,612 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:15:18,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:15:18,614 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) [2021-10-13 20:15:18,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2021-10-13 20:15:21,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-13 20:15:21,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:15:21,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:15:21,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:15:21,896 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:21,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:15:22,956 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:22,956 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:15:22,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584798509] [2021-10-13 20:15:22,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584798509] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 20:15:22,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 20:15:22,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-10-13 20:15:22,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749500522] [2021-10-13 20:15:22,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 20:15:22,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:15:22,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 20:15:22,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:15:22,958 INFO L87 Difference]: Start difference. First operand 1286 states and 5281 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:23,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:15:23,915 INFO L93 Difference]: Finished difference Result 1828 states and 7030 transitions. [2021-10-13 20:15:23,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 20:15:23,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 24 [2021-10-13 20:15:23,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:15:23,923 INFO L225 Difference]: With dead ends: 1828 [2021-10-13 20:15:23,923 INFO L226 Difference]: Without dead ends: 1828 [2021-10-13 20:15:23,923 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 923.2ms TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-10-13 20:15:23,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2021-10-13 20:15:23,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1290. [2021-10-13 20:15:23,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 1289 states have (on average 4.106283941039566) internal successors, (5293), 1289 states have internal predecessors, (5293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:23,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 5293 transitions. [2021-10-13 20:15:23,984 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 5293 transitions. Word has length 24 [2021-10-13 20:15:23,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:15:23,984 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 5293 transitions. [2021-10-13 20:15:23,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:23,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 5293 transitions. [2021-10-13 20:15:23,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:15:23,990 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:15:23,991 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:15:24,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2021-10-13 20:15:24,206 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 [2021-10-13 20:15:24,207 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:15:24,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:15:24,207 INFO L82 PathProgramCache]: Analyzing trace with hash 315602691, now seen corresponding path program 1 times [2021-10-13 20:15:24,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:15:24,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407236309] [2021-10-13 20:15:24,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:15:24,209 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:15:24,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:15:24,211 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) [2021-10-13 20:15:24,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-10-13 20:15:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:15:26,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 20:15:26,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:15:27,471 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:27,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:15:27,546 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:15:27,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 46 [2021-10-13 20:15:27,577 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:15:27,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 47 [2021-10-13 20:15:28,549 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:28,549 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:15:28,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407236309] [2021-10-13 20:15:28,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407236309] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:15:28,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:15:28,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-10-13 20:15:28,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961729933] [2021-10-13 20:15:28,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 20:15:28,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:15:28,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 20:15:28,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-10-13 20:15:28,551 INFO L87 Difference]: Start difference. First operand 1290 states and 5293 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:29,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:15:29,284 INFO L93 Difference]: Finished difference Result 1632 states and 6313 transitions. [2021-10-13 20:15:29,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 20:15:29,285 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 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 24 [2021-10-13 20:15:29,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:15:29,289 INFO L225 Difference]: With dead ends: 1632 [2021-10-13 20:15:29,290 INFO L226 Difference]: Without dead ends: 1624 [2021-10-13 20:15:29,290 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 689.5ms TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:15:29,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2021-10-13 20:15:29,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 1292. [2021-10-13 20:15:29,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1291 states have (on average 4.103795507358637) internal successors, (5298), 1291 states have internal predecessors, (5298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:29,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 5298 transitions. [2021-10-13 20:15:29,321 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 5298 transitions. Word has length 24 [2021-10-13 20:15:29,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:15:29,321 INFO L470 AbstractCegarLoop]: Abstraction has 1292 states and 5298 transitions. [2021-10-13 20:15:29,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:29,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 5298 transitions. [2021-10-13 20:15:29,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:15:29,325 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:15:29,325 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:15:29,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2021-10-13 20:15:29,525 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 [2021-10-13 20:15:29,526 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:15:29,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:15:29,526 INFO L82 PathProgramCache]: Analyzing trace with hash -363665716, now seen corresponding path program 4 times [2021-10-13 20:15:29,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:15:29,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242304471] [2021-10-13 20:15:29,528 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 20:15:29,528 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:15:29,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:15:29,529 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) [2021-10-13 20:15:29,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2021-10-13 20:15:32,075 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 20:15:32,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:15:32,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:15:32,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:15:32,938 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:32,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:15:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:34,042 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:15:34,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242304471] [2021-10-13 20:15:34,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242304471] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 20:15:34,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 20:15:34,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-10-13 20:15:34,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077545439] [2021-10-13 20:15:34,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 20:15:34,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:15:34,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 20:15:34,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:15:34,044 INFO L87 Difference]: Start difference. First operand 1292 states and 5298 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:35,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:15:35,110 INFO L93 Difference]: Finished difference Result 1844 states and 7086 transitions. [2021-10-13 20:15:35,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 20:15:35,112 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 24 [2021-10-13 20:15:35,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:15:35,117 INFO L225 Difference]: With dead ends: 1844 [2021-10-13 20:15:35,117 INFO L226 Difference]: Without dead ends: 1844 [2021-10-13 20:15:35,117 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 923.5ms TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2021-10-13 20:15:35,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2021-10-13 20:15:35,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1304. [2021-10-13 20:15:35,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1303 states have (on average 4.115118956254797) internal successors, (5362), 1303 states have internal predecessors, (5362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:35,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 5362 transitions. [2021-10-13 20:15:35,149 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 5362 transitions. Word has length 24 [2021-10-13 20:15:35,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:15:35,150 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 5362 transitions. [2021-10-13 20:15:35,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:35,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 5362 transitions. [2021-10-13 20:15:35,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:15:35,153 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:15:35,153 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:15:35,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2021-10-13 20:15:35,354 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 [2021-10-13 20:15:35,354 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:15:35,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:15:35,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1799061356, now seen corresponding path program 5 times [2021-10-13 20:15:35,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:15:35,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461036925] [2021-10-13 20:15:35,357 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 20:15:35,357 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:15:35,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:15:35,358 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) [2021-10-13 20:15:35,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2021-10-13 20:15:37,818 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-13 20:15:37,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:15:37,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:15:37,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:15:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:38,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:15:39,697 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:39,698 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:15:39,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461036925] [2021-10-13 20:15:39,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461036925] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:15:39,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:15:39,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-13 20:15:39,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864256944] [2021-10-13 20:15:39,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 20:15:39,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:15:39,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 20:15:39,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:15:39,700 INFO L87 Difference]: Start difference. First operand 1304 states and 5362 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:41,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:15:41,265 INFO L93 Difference]: Finished difference Result 1878 states and 7132 transitions. [2021-10-13 20:15:41,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 20:15:41,266 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 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 24 [2021-10-13 20:15:41,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:15:41,271 INFO L225 Difference]: With dead ends: 1878 [2021-10-13 20:15:41,271 INFO L226 Difference]: Without dead ends: 1872 [2021-10-13 20:15:41,271 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1171.6ms TimeCoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2021-10-13 20:15:41,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2021-10-13 20:15:41,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1304. [2021-10-13 20:15:41,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1303 states have (on average 4.113584036838066) internal successors, (5360), 1303 states have internal predecessors, (5360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:41,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 5360 transitions. [2021-10-13 20:15:41,302 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 5360 transitions. Word has length 24 [2021-10-13 20:15:41,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:15:41,302 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 5360 transitions. [2021-10-13 20:15:41,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:41,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 5360 transitions. [2021-10-13 20:15:41,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:15:41,305 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:15:41,305 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:15:41,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2021-10-13 20:15:41,505 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 [2021-10-13 20:15:41,506 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:15:41,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:15:41,507 INFO L82 PathProgramCache]: Analyzing trace with hash 706793888, now seen corresponding path program 6 times [2021-10-13 20:15:41,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:15:41,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298671285] [2021-10-13 20:15:41,509 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 20:15:41,509 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:15:41,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:15:41,510 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) [2021-10-13 20:15:41,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-10-13 20:15:44,269 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-10-13 20:15:44,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:15:44,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:15:44,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:15:45,165 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:45,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:15:46,370 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:46,370 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:15:46,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298671285] [2021-10-13 20:15:46,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298671285] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 20:15:46,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 20:15:46,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-10-13 20:15:46,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721550170] [2021-10-13 20:15:46,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 20:15:46,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:15:46,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 20:15:46,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:15:46,372 INFO L87 Difference]: Start difference. First operand 1304 states and 5360 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:47,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:15:47,501 INFO L93 Difference]: Finished difference Result 1914 states and 7288 transitions. [2021-10-13 20:15:47,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 20:15:47,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 24 [2021-10-13 20:15:47,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:15:47,508 INFO L225 Difference]: With dead ends: 1914 [2021-10-13 20:15:47,508 INFO L226 Difference]: Without dead ends: 1914 [2021-10-13 20:15:47,508 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1059.6ms TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-10-13 20:15:47,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2021-10-13 20:15:47,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1302. [2021-10-13 20:15:47,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1301 states have (on average 4.114527286702536) internal successors, (5353), 1301 states have internal predecessors, (5353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:47,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 5353 transitions. [2021-10-13 20:15:47,555 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 5353 transitions. Word has length 24 [2021-10-13 20:15:47,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:15:47,555 INFO L470 AbstractCegarLoop]: Abstraction has 1302 states and 5353 transitions. [2021-10-13 20:15:47,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:47,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 5353 transitions. [2021-10-13 20:15:47,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:15:47,560 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:15:47,560 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:15:47,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2021-10-13 20:15:47,774 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 [2021-10-13 20:15:47,775 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:15:47,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:15:47,775 INFO L82 PathProgramCache]: Analyzing trace with hash 457151696, now seen corresponding path program 7 times [2021-10-13 20:15:47,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:15:47,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763430735] [2021-10-13 20:15:47,777 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 20:15:47,777 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:15:47,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:15:47,779 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) [2021-10-13 20:15:47,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2021-10-13 20:15:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:15:50,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:15:50,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:15:51,344 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:51,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:15:52,515 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:52,515 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:15:52,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763430735] [2021-10-13 20:15:52,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763430735] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:15:52,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:15:52,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-13 20:15:52,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192970471] [2021-10-13 20:15:52,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 20:15:52,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:15:52,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 20:15:52,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:15:52,517 INFO L87 Difference]: Start difference. First operand 1302 states and 5353 transitions. Second operand has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:54,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:15:54,547 INFO L93 Difference]: Finished difference Result 1986 states and 7472 transitions. [2021-10-13 20:15:54,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 20:15:54,548 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 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 24 [2021-10-13 20:15:54,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:15:54,553 INFO L225 Difference]: With dead ends: 1986 [2021-10-13 20:15:54,553 INFO L226 Difference]: Without dead ends: 1986 [2021-10-13 20:15:54,554 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1563.1ms TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2021-10-13 20:15:54,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2021-10-13 20:15:54,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1296. [2021-10-13 20:15:54,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1295 states have (on average 4.105019305019305) internal successors, (5316), 1295 states have internal predecessors, (5316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:54,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5316 transitions. [2021-10-13 20:15:54,592 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5316 transitions. Word has length 24 [2021-10-13 20:15:54,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:15:54,592 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5316 transitions. [2021-10-13 20:15:54,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:15:54,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5316 transitions. [2021-10-13 20:15:54,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:15:54,595 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:15:54,595 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:15:54,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2021-10-13 20:15:54,796 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 [2021-10-13 20:15:54,796 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:15:54,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:15:54,798 INFO L82 PathProgramCache]: Analyzing trace with hash 223338333, now seen corresponding path program 2 times [2021-10-13 20:15:54,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:15:54,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885675754] [2021-10-13 20:15:54,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 20:15:54,799 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:15:54,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:15:54,800 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) [2021-10-13 20:15:54,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2021-10-13 20:15:57,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 20:15:57,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:15:57,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 20:15:57,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:15:58,476 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 296 treesize of output 292 [2021-10-13 20:15:58,492 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:15:58,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 292 treesize of output 222 [2021-10-13 20:15:58,498 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 222 treesize of output 218 [2021-10-13 20:15:58,794 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:15:58,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:15:59,034 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:15:59,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 46 [2021-10-13 20:15:59,076 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:15:59,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 47 [2021-10-13 20:16:04,333 WARN L207 SmtUtils]: Spent 5.21 s on a formula simplification. DAG size of input: 49 DAG size of output: 27 [2021-10-13 20:16:05,210 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:16:05,210 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:16:05,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885675754] [2021-10-13 20:16:05,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885675754] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 20:16:05,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 20:16:05,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-10-13 20:16:05,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81682335] [2021-10-13 20:16:05,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 20:16:05,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:16:05,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 20:16:05,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:16:05,212 INFO L87 Difference]: Start difference. First operand 1296 states and 5316 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:06,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:16:06,451 INFO L93 Difference]: Finished difference Result 1720 states and 6563 transitions. [2021-10-13 20:16:06,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 20:16:06,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 24 [2021-10-13 20:16:06,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:16:06,457 INFO L225 Difference]: With dead ends: 1720 [2021-10-13 20:16:06,457 INFO L226 Difference]: Without dead ends: 1720 [2021-10-13 20:16:06,458 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 6331.9ms TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-10-13 20:16:06,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2021-10-13 20:16:06,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1312. [2021-10-13 20:16:06,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1311 states have (on average 4.106788710907704) internal successors, (5384), 1311 states have internal predecessors, (5384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:06,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 5384 transitions. [2021-10-13 20:16:06,487 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 5384 transitions. Word has length 24 [2021-10-13 20:16:06,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:16:06,487 INFO L470 AbstractCegarLoop]: Abstraction has 1312 states and 5384 transitions. [2021-10-13 20:16:06,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:06,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 5384 transitions. [2021-10-13 20:16:06,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:16:06,491 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:16:06,491 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:16:06,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2021-10-13 20:16:06,692 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 [2021-10-13 20:16:06,692 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:16:06,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:16:06,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1661031599, now seen corresponding path program 3 times [2021-10-13 20:16:06,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:16:06,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131030082] [2021-10-13 20:16:06,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 20:16:06,694 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:16:06,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:16:06,695 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) [2021-10-13 20:16:06,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2021-10-13 20:16:09,448 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-13 20:16:09,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:16:09,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 20:16:09,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:16:10,093 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 296 treesize of output 292 [2021-10-13 20:16:10,100 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 292 treesize of output 288 [2021-10-13 20:16:10,114 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:16:10,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 288 treesize of output 218 [2021-10-13 20:16:10,663 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:16:10,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:16:11,249 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:16:11,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 46 [2021-10-13 20:16:11,309 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:16:11,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 47 [2021-10-13 20:16:17,625 WARN L207 SmtUtils]: Spent 6.21 s on a formula simplification. DAG size of input: 66 DAG size of output: 44 [2021-10-13 20:16:18,215 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:16:18,215 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:16:18,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131030082] [2021-10-13 20:16:18,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131030082] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:16:18,215 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:16:18,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-13 20:16:18,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170798846] [2021-10-13 20:16:18,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 20:16:18,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:16:18,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 20:16:18,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:16:18,217 INFO L87 Difference]: Start difference. First operand 1312 states and 5384 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:19,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:16:19,051 INFO L93 Difference]: Finished difference Result 1706 states and 6535 transitions. [2021-10-13 20:16:19,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 20:16:19,051 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 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 24 [2021-10-13 20:16:19,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:16:19,056 INFO L225 Difference]: With dead ends: 1706 [2021-10-13 20:16:19,056 INFO L226 Difference]: Without dead ends: 1706 [2021-10-13 20:16:19,056 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 7000.1ms TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2021-10-13 20:16:19,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2021-10-13 20:16:19,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1312. [2021-10-13 20:16:19,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1311 states have (on average 4.108314263920671) internal successors, (5386), 1311 states have internal predecessors, (5386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:19,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 5386 transitions. [2021-10-13 20:16:19,085 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 5386 transitions. Word has length 24 [2021-10-13 20:16:19,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:16:19,085 INFO L470 AbstractCegarLoop]: Abstraction has 1312 states and 5386 transitions. [2021-10-13 20:16:19,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:19,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 5386 transitions. [2021-10-13 20:16:19,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:16:19,089 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:16:19,089 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:16:19,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2021-10-13 20:16:19,289 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 [2021-10-13 20:16:19,290 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:16:19,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:16:19,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1394172893, now seen corresponding path program 4 times [2021-10-13 20:16:19,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:16:19,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104956973] [2021-10-13 20:16:19,293 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 20:16:19,293 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:16:19,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:16:19,294 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) [2021-10-13 20:16:19,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2021-10-13 20:16:21,982 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 20:16:21,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:16:21,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 20:16:21,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:16:22,633 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:16:22,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 296 treesize of output 226 [2021-10-13 20:16:22,640 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 226 treesize of output 222 [2021-10-13 20:16:22,648 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 222 treesize of output 218 [2021-10-13 20:16:23,345 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:16:23,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:16:24,102 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:16:24,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 46 [2021-10-13 20:16:24,163 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:16:24,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 47 [2021-10-13 20:16:25,079 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:16:25,080 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:16:25,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104956973] [2021-10-13 20:16:25,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104956973] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:16:25,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:16:25,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-13 20:16:25,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076314577] [2021-10-13 20:16:25,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 20:16:25,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:16:25,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 20:16:25,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:16:25,081 INFO L87 Difference]: Start difference. First operand 1312 states and 5386 transitions. Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:25,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:16:25,984 INFO L93 Difference]: Finished difference Result 1706 states and 6539 transitions. [2021-10-13 20:16:25,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 20:16:25,985 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 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 24 [2021-10-13 20:16:25,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:16:25,992 INFO L225 Difference]: With dead ends: 1706 [2021-10-13 20:16:25,992 INFO L226 Difference]: Without dead ends: 1706 [2021-10-13 20:16:25,992 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1019.6ms TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-10-13 20:16:25,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2021-10-13 20:16:26,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1324. [2021-10-13 20:16:26,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1323 states have (on average 4.1020408163265305) internal successors, (5427), 1323 states have internal predecessors, (5427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:26,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 5427 transitions. [2021-10-13 20:16:26,020 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 5427 transitions. Word has length 24 [2021-10-13 20:16:26,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:16:26,021 INFO L470 AbstractCegarLoop]: Abstraction has 1324 states and 5427 transitions. [2021-10-13 20:16:26,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:26,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 5427 transitions. [2021-10-13 20:16:26,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:16:26,024 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:16:26,024 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:16:26,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2021-10-13 20:16:26,225 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 [2021-10-13 20:16:26,225 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:16:26,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:16:26,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1422820560, now seen corresponding path program 8 times [2021-10-13 20:16:26,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:16:26,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473529042] [2021-10-13 20:16:26,227 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 20:16:26,228 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:16:26,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:16:26,229 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) [2021-10-13 20:16:26,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2021-10-13 20:16:29,320 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 20:16:29,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:16:29,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:16:29,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:16:30,240 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:16:30,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:16:31,296 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:16:31,297 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:16:31,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473529042] [2021-10-13 20:16:31,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473529042] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:16:31,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:16:31,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-13 20:16:31,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435431674] [2021-10-13 20:16:31,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 20:16:31,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:16:31,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 20:16:31,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:16:31,299 INFO L87 Difference]: Start difference. First operand 1324 states and 5427 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:33,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:16:33,008 INFO L93 Difference]: Finished difference Result 1922 states and 7267 transitions. [2021-10-13 20:16:33,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 20:16:33,009 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 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 24 [2021-10-13 20:16:33,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:16:33,014 INFO L225 Difference]: With dead ends: 1922 [2021-10-13 20:16:33,014 INFO L226 Difference]: Without dead ends: 1916 [2021-10-13 20:16:33,014 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1423.2ms TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2021-10-13 20:16:33,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2021-10-13 20:16:33,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1336. [2021-10-13 20:16:33,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 4.104868913857678) internal successors, (5480), 1335 states have internal predecessors, (5480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:33,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 5480 transitions. [2021-10-13 20:16:33,059 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 5480 transitions. Word has length 24 [2021-10-13 20:16:33,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:16:33,059 INFO L470 AbstractCegarLoop]: Abstraction has 1336 states and 5480 transitions. [2021-10-13 20:16:33,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:33,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 5480 transitions. [2021-10-13 20:16:33,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:16:33,062 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:16:33,063 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:16:33,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2021-10-13 20:16:33,263 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 [2021-10-13 20:16:33,263 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:16:33,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:16:33,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1011069632, now seen corresponding path program 9 times [2021-10-13 20:16:33,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:16:33,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571796674] [2021-10-13 20:16:33,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 20:16:33,265 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:16:33,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:16:33,266 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) [2021-10-13 20:16:33,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2021-10-13 20:16:36,791 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-13 20:16:36,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:16:36,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:16:36,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:16:37,743 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:16:37,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:16:38,991 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:16:38,991 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:16:38,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571796674] [2021-10-13 20:16:38,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571796674] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:16:38,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:16:38,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-13 20:16:38,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151157212] [2021-10-13 20:16:38,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 20:16:38,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:16:38,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 20:16:38,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:16:38,993 INFO L87 Difference]: Start difference. First operand 1336 states and 5480 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:41,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:16:41,156 INFO L93 Difference]: Finished difference Result 1902 states and 7235 transitions. [2021-10-13 20:16:41,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 20:16:41,157 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 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 24 [2021-10-13 20:16:41,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:16:41,162 INFO L225 Difference]: With dead ends: 1902 [2021-10-13 20:16:41,163 INFO L226 Difference]: Without dead ends: 1902 [2021-10-13 20:16:41,163 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1823.8ms TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-10-13 20:16:41,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1902 states. [2021-10-13 20:16:41,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1902 to 1328. [2021-10-13 20:16:41,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 1327 states have (on average 4.100979653353429) internal successors, (5442), 1327 states have internal predecessors, (5442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:41,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 5442 transitions. [2021-10-13 20:16:41,194 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 5442 transitions. Word has length 24 [2021-10-13 20:16:41,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:16:41,194 INFO L470 AbstractCegarLoop]: Abstraction has 1328 states and 5442 transitions. [2021-10-13 20:16:41,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:41,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 5442 transitions. [2021-10-13 20:16:41,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:16:41,198 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:16:41,198 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:16:41,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2021-10-13 20:16:41,398 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 [2021-10-13 20:16:41,398 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:16:41,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:16:41,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1284459645, now seen corresponding path program 5 times [2021-10-13 20:16:41,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:16:41,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2005477664] [2021-10-13 20:16:41,400 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 20:16:41,400 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:16:41,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:16:41,409 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) [2021-10-13 20:16:41,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2021-10-13 20:16:44,733 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-13 20:16:44,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:16:44,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 20:16:44,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:16:45,661 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:16:45,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:16:45,725 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:16:45,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 46 [2021-10-13 20:16:45,749 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:16:45,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 47 [2021-10-13 20:16:51,139 WARN L207 SmtUtils]: Spent 5.36 s on a formula simplification. DAG size of input: 27 DAG size of output: 4 [2021-10-13 20:16:52,334 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:16:52,335 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:16:52,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2005477664] [2021-10-13 20:16:52,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2005477664] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:16:52,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:16:52,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-13 20:16:52,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845278050] [2021-10-13 20:16:52,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 20:16:52,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:16:52,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 20:16:52,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:16:52,338 INFO L87 Difference]: Start difference. First operand 1328 states and 5442 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:53,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:16:53,267 INFO L93 Difference]: Finished difference Result 1746 states and 6644 transitions. [2021-10-13 20:16:53,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 20:16:53,268 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 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 24 [2021-10-13 20:16:53,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:16:53,274 INFO L225 Difference]: With dead ends: 1746 [2021-10-13 20:16:53,274 INFO L226 Difference]: Without dead ends: 1742 [2021-10-13 20:16:53,274 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 6238.1ms TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:16:53,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2021-10-13 20:16:53,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1336. [2021-10-13 20:16:53,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 4.10187265917603) internal successors, (5476), 1335 states have internal predecessors, (5476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:53,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 5476 transitions. [2021-10-13 20:16:53,307 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 5476 transitions. Word has length 24 [2021-10-13 20:16:53,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:16:53,308 INFO L470 AbstractCegarLoop]: Abstraction has 1336 states and 5476 transitions. [2021-10-13 20:16:53,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:16:53,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 5476 transitions. [2021-10-13 20:16:53,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:16:53,312 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:16:53,312 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:16:53,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (66)] Forceful destruction successful, exit code 0 [2021-10-13 20:16:53,513 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 [2021-10-13 20:16:53,513 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:16:53,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:16:53,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1081236975, now seen corresponding path program 6 times [2021-10-13 20:16:53,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:16:53,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328131077] [2021-10-13 20:16:53,522 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 20:16:53,522 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:16:53,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:16:53,534 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) [2021-10-13 20:16:53,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2021-10-13 20:16:57,182 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-10-13 20:16:57,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:16:57,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 20:16:57,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:16:58,097 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:16:58,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 296 treesize of output 226 [2021-10-13 20:16:58,103 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 226 treesize of output 222 [2021-10-13 20:16:58,109 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 222 treesize of output 218 [2021-10-13 20:17:02,183 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:17:02,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:17:02,526 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:17:02,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 46 [2021-10-13 20:17:02,577 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:17:02,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 47 [2021-10-13 20:17:08,773 WARN L207 SmtUtils]: Spent 6.12 s on a formula simplification. DAG size of input: 50 DAG size of output: 27 [2021-10-13 20:17:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:17:09,732 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:17:09,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328131077] [2021-10-13 20:17:09,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328131077] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 20:17:09,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 20:17:09,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-10-13 20:17:09,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804855303] [2021-10-13 20:17:09,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 20:17:09,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:17:09,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 20:17:09,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:17:09,734 INFO L87 Difference]: Start difference. First operand 1336 states and 5476 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:17:11,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:17:11,278 INFO L93 Difference]: Finished difference Result 1752 states and 6653 transitions. [2021-10-13 20:17:11,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 20:17:11,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 24 [2021-10-13 20:17:11,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:17:11,286 INFO L225 Difference]: With dead ends: 1752 [2021-10-13 20:17:11,286 INFO L226 Difference]: Without dead ends: 1752 [2021-10-13 20:17:11,286 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 11225.1ms TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2021-10-13 20:17:11,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2021-10-13 20:17:11,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1328. [2021-10-13 20:17:11,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 1327 states have (on average 4.097965335342879) internal successors, (5438), 1327 states have internal predecessors, (5438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:17:11,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 5438 transitions. [2021-10-13 20:17:11,325 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 5438 transitions. Word has length 24 [2021-10-13 20:17:11,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:17:11,326 INFO L470 AbstractCegarLoop]: Abstraction has 1328 states and 5438 transitions. [2021-10-13 20:17:11,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:17:11,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 5438 transitions. [2021-10-13 20:17:11,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:17:11,330 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:17:11,330 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:17:11,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (67)] Forceful destruction successful, exit code 0 [2021-10-13 20:17:11,530 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 [2021-10-13 20:17:11,531 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:17:11,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:17:11,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1650708590, now seen corresponding path program 10 times [2021-10-13 20:17:11,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:17:11,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228051033] [2021-10-13 20:17:11,533 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 20:17:11,534 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:17:11,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:17:11,535 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) [2021-10-13 20:17:11,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2021-10-13 20:17:14,438 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 20:17:14,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:17:14,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:17:14,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:17:15,033 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:17:15,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:17:15,940 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:17:15,941 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:17:15,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228051033] [2021-10-13 20:17:15,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228051033] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 20:17:15,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 20:17:15,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2021-10-13 20:17:15,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987083332] [2021-10-13 20:17:15,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 20:17:15,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:17:15,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 20:17:15,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-10-13 20:17:15,943 INFO L87 Difference]: Start difference. First operand 1328 states and 5438 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:17:17,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:17:17,086 INFO L93 Difference]: Finished difference Result 2048 states and 7768 transitions. [2021-10-13 20:17:17,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 20:17:17,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 24 [2021-10-13 20:17:17,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:17:17,094 INFO L225 Difference]: With dead ends: 2048 [2021-10-13 20:17:17,094 INFO L226 Difference]: Without dead ends: 2048 [2021-10-13 20:17:17,094 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 810.9ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-10-13 20:17:17,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2021-10-13 20:17:17,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1332. [2021-10-13 20:17:17,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 4.096919609316304) internal successors, (5453), 1331 states have internal predecessors, (5453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:17:17,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 5453 transitions. [2021-10-13 20:17:17,128 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 5453 transitions. Word has length 24 [2021-10-13 20:17:17,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:17:17,128 INFO L470 AbstractCegarLoop]: Abstraction has 1332 states and 5453 transitions. [2021-10-13 20:17:17,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:17:17,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 5453 transitions. [2021-10-13 20:17:17,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:17:17,134 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:17:17,134 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:17:17,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2021-10-13 20:17:17,337 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 [2021-10-13 20:17:17,337 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:17:17,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:17:17,349 INFO L82 PathProgramCache]: Analyzing trace with hash 505569711, now seen corresponding path program 7 times [2021-10-13 20:17:17,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:17:17,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398359946] [2021-10-13 20:17:17,350 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 20:17:17,351 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:17:17,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:17:17,352 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) [2021-10-13 20:17:17,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2021-10-13 20:17:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:17:20,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 20:17:20,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:17:21,086 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:17:21,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:17:21,148 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:17:21,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 46 [2021-10-13 20:17:21,173 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:17:21,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 47 [2021-10-13 20:17:22,042 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:17:22,042 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:17:22,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398359946] [2021-10-13 20:17:22,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398359946] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:17:22,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:17:22,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-10-13 20:17:22,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529702410] [2021-10-13 20:17:22,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 20:17:22,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:17:22,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 20:17:22,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-13 20:17:22,044 INFO L87 Difference]: Start difference. First operand 1332 states and 5453 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:17:22,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:17:22,830 INFO L93 Difference]: Finished difference Result 1712 states and 6550 transitions. [2021-10-13 20:17:22,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 20:17:22,831 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 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 24 [2021-10-13 20:17:22,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:17:22,836 INFO L225 Difference]: With dead ends: 1712 [2021-10-13 20:17:22,836 INFO L226 Difference]: Without dead ends: 1704 [2021-10-13 20:17:22,836 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 626.2ms TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:17:22,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2021-10-13 20:17:22,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1332. [2021-10-13 20:17:22,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 4.093914350112697) internal successors, (5449), 1331 states have internal predecessors, (5449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:17:22,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 5449 transitions. [2021-10-13 20:17:22,878 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 5449 transitions. Word has length 24 [2021-10-13 20:17:22,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:17:22,879 INFO L470 AbstractCegarLoop]: Abstraction has 1332 states and 5449 transitions. [2021-10-13 20:17:22,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:17:22,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 5449 transitions. [2021-10-13 20:17:22,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:17:22,883 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:17:22,883 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:17:22,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (69)] Forceful destruction successful, exit code 0 [2021-10-13 20:17:23,083 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 [2021-10-13 20:17:23,084 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:17:23,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:17:23,085 INFO L82 PathProgramCache]: Analyzing trace with hash -451101902, now seen corresponding path program 11 times [2021-10-13 20:17:23,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:17:23,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329455312] [2021-10-13 20:17:23,086 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 20:17:23,086 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:17:23,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:17:23,088 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) [2021-10-13 20:17:23,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2021-10-13 20:17:26,484 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-13 20:17:26,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:17:26,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:17:26,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:17:27,245 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:17:27,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:17:28,105 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:17:28,105 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:17:28,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329455312] [2021-10-13 20:17:28,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329455312] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 20:17:28,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 20:17:28,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-10-13 20:17:28,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440125742] [2021-10-13 20:17:28,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 20:17:28,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:17:28,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 20:17:28,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-13 20:17:28,108 INFO L87 Difference]: Start difference. First operand 1332 states and 5449 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:17:29,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:17:29,046 INFO L93 Difference]: Finished difference Result 1924 states and 7380 transitions. [2021-10-13 20:17:29,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 20:17:29,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 24 [2021-10-13 20:17:29,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:17:29,053 INFO L225 Difference]: With dead ends: 1924 [2021-10-13 20:17:29,054 INFO L226 Difference]: Without dead ends: 1924 [2021-10-13 20:17:29,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 874.2ms TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-10-13 20:17:29,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2021-10-13 20:17:29,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1336. [2021-10-13 20:17:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 4.089887640449438) internal successors, (5460), 1335 states have internal predecessors, (5460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:17:29,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 5460 transitions. [2021-10-13 20:17:29,091 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 5460 transitions. Word has length 24 [2021-10-13 20:17:29,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:17:29,091 INFO L470 AbstractCegarLoop]: Abstraction has 1336 states and 5460 transitions. [2021-10-13 20:17:29,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:17:29,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 5460 transitions. [2021-10-13 20:17:29,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 20:17:29,095 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:17:29,095 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:17:29,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (70)] Forceful destruction successful, exit code 0 [2021-10-13 20:17:29,295 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 [2021-10-13 20:17:29,296 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-13 20:17:29,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:17:29,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1298200855, now seen corresponding path program 8 times [2021-10-13 20:17:29,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:17:29,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587523423] [2021-10-13 20:17:29,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 20:17:29,298 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:17:29,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:17:29,299 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) [2021-10-13 20:17:29,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2021-10-13 20:17:32,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 20:17:32,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:17:32,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 20:17:32,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:17:32,942 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 296 treesize of output 292 [2021-10-13 20:17:32,948 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 292 treesize of output 288 [2021-10-13 20:17:32,963 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:17:32,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 288 treesize of output 218 [2021-10-13 20:17:33,562 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 20:17:33,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:17:34,414 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:17:34,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 46 [2021-10-13 20:17:34,486 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-13 20:17:34,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 47 Received shutdown request... [2021-10-13 20:17:37,217 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (71)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-13 20:17:37,253 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 [2021-10-13 20:17:38,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2021-10-13 20:17:38,455 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-13 20:17:38,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2021-10-13 20:17:38,469 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 20:17:38,469 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. [2021-10-13 20:17:38,470 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0REQUIRES_VIOLATION [2021-10-13 20:17:38,471 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1REQUIRES_VIOLATION [2021-10-13 20:17:38,471 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0REQUIRES_VIOLATION [2021-10-13 20:17:38,471 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1REQUIRES_VIOLATION [2021-10-13 20:17:38,471 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0REQUIRES_VIOLATION [2021-10-13 20:17:38,471 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1REQUIRES_VIOLATION [2021-10-13 20:17:38,471 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-13 20:17:38,471 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-13 20:17:38,471 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-13 20:17:38,471 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-13 20:17:38,471 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-13 20:17:38,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-13 20:17:38,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-13 20:17:38,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-13 20:17:38,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-13 20:17:38,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-13 20:17:38,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-13 20:17:38,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-13 20:17:38,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-13 20:17:38,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-13 20:17:38,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 20:17:38,473 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 20:17:38,473 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 20:17:38,473 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-13 20:17:38,473 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0REQUIRES_VIOLATION [2021-10-13 20:17:38,473 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1REQUIRES_VIOLATION [2021-10-13 20:17:38,473 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0REQUIRES_VIOLATION [2021-10-13 20:17:38,473 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1REQUIRES_VIOLATION [2021-10-13 20:17:38,473 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0REQUIRES_VIOLATION [2021-10-13 20:17:38,473 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1REQUIRES_VIOLATION [2021-10-13 20:17:38,481 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 20:17:38,481 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 20:17:38,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:17:38 BasicIcfg [2021-10-13 20:17:38,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 20:17:38,484 INFO L168 Benchmark]: Toolchain (without parser) took 788736.63 ms. Allocated memory was 160.4 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 135.7 MB in the beginning and 731.0 MB in the end (delta: -595.4 MB). Peak memory consumption was 504.3 MB. Max. memory is 8.0 GB. [2021-10-13 20:17:38,484 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 160.4 MB. Free memory is still 132.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 20:17:38,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.69 ms. Allocated memory is still 160.4 MB. Free memory was 135.5 MB in the beginning and 119.4 MB in the end (delta: 16.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-10-13 20:17:38,484 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.92 ms. Allocated memory is still 160.4 MB. Free memory was 119.2 MB in the beginning and 116.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-13 20:17:38,485 INFO L168 Benchmark]: Boogie Preprocessor took 59.64 ms. Allocated memory is still 160.4 MB. Free memory was 116.6 MB in the beginning and 114.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 20:17:38,485 INFO L168 Benchmark]: RCFGBuilder took 1278.05 ms. Allocated memory is still 160.4 MB. Free memory was 114.1 MB in the beginning and 122.6 MB in the end (delta: -8.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. [2021-10-13 20:17:38,485 INFO L168 Benchmark]: TraceAbstraction took 786785.02 ms. Allocated memory was 160.4 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 122.1 MB in the beginning and 731.0 MB in the end (delta: -608.9 MB). Peak memory consumption was 491.0 MB. Max. memory is 8.0 GB. [2021-10-13 20:17:38,486 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 160.4 MB. Free memory is still 132.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 494.69 ms. Allocated memory is still 160.4 MB. Free memory was 135.5 MB in the beginning and 119.4 MB in the end (delta: 16.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 99.92 ms. Allocated memory is still 160.4 MB. Free memory was 119.2 MB in the beginning and 116.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 59.64 ms. Allocated memory is still 160.4 MB. Free memory was 116.6 MB in the beginning and 114.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1278.05 ms. Allocated memory is still 160.4 MB. Free memory was 114.1 MB in the beginning and 122.6 MB in the end (delta: -8.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 786785.02 ms. Allocated memory was 160.4 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 122.1 MB in the beginning and 731.0 MB in the end (delta: -608.9 MB). Peak memory consumption was 491.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 52529.4ms, 394 PlacesBefore, 55 PlacesAfterwards, 428 TransitionsBefore, 49 TransitionsAfterwards, 59514 CoEnabledTransitionPairs, 8 FixpointIterations, 123 TrivialSequentialCompositions, 264 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 98 ConcurrentYvCompositions, 40 ChoiceCompositions, 532 TotalNumberOfCompositions, 54009 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52929, positive: 52888, positive conditional: 0, positive unconditional: 52888, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 43408, positive: 43388, positive conditional: 0, positive unconditional: 43388, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 43408, positive: 43388, positive conditional: 0, positive unconditional: 43388, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1746, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1746, negative conditional: 0, negative unconditional: 1746, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 52929, positive: 9500, positive conditional: 0, positive unconditional: 9500, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 43408, unknown conditional: 0, unknown unconditional: 43408] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 113, Positive conditional cache size: 0, Positive unconditional cache size: 113, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - 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: 142]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 153]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 153]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 134]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 134]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 135]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 135]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 136]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 136]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 137]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 137]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 135]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 136]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - TimeoutResultAtElement [Line: 134]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 25 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 625 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 786498.9ms, OverallIterations: 69, TraceHistogramMax: 4, EmptinessCheckTime: 219.7ms, AutomataDifference: 337856.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 52668.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2868 SDtfs, 7776 SDslu, 10961 SDs, 0 SdLazy, 13115 SolverSat, 1279 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 86052.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2974 GetRequests, 1960 SyntacticMatches, 4 SemanticMatches, 1010 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2998 ImplicationChecksByTransitivity, 336273.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3161occurred in iteration=21, InterpolantAutomatonStates: 715, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 3227.7ms AutomataMinimizationTime, 68 MinimizatonAttempts, 38035 StatesRemovedByMinimization, 57 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1057.9ms SsaConstructionTime, 13990.2ms SatisfiabilityAnalysisTime, 272818.7ms InterpolantComputationTime, 1244 NumberOfCodeBlocks, 1196 NumberOfCodeBlocksAsserted, 94 NumberOfCheckSat, 2352 ConstructedInterpolants, 72 QuantifiedInterpolants, 65281 SizeOfPredicates, 2381 NumberOfNonLiveVariables, 6703 ConjunctsInSsa, 610 ConjunctsInUnsatCore, 136 InterpolantComputations, 107 PerfectInterpolantSequences, 794/880 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