/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/chromosome-opt-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-06 20:58:47,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-06 20:58:47,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-06 20:58:47,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-06 20:58:47,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-06 20:58:47,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-06 20:58:47,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-06 20:58:47,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-06 20:58:47,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-06 20:58:47,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-06 20:58:47,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-06 20:58:47,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-06 20:58:47,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-06 20:58:47,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-06 20:58:47,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-06 20:58:47,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-06 20:58:47,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-06 20:58:47,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-06 20:58:47,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-06 20:58:47,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-06 20:58:47,280 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-06 20:58:47,345 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-06 20:58:47,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-06 20:58:47,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-06 20:58:47,347 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-06 20:58:47,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-06 20:58:47,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-06 20:58:47,352 INFO L138 SettingsManager]: * Use SBE=true [2021-10-06 20:58:47,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-06 20:58:47,352 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-06 20:58:47,353 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-06 20:58:47,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-06 20:58:47,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-06 20:58:47,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-06 20:58:47,354 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-06 20:58:47,355 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-06 20:58:47,355 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-06 20:58:47,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-06 20:58:47,355 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-06 20:58:47,355 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-06 20:58:47,356 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-06 20:58:47,356 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-06 20:58:47,356 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-06 20:58:47,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-06 20:58:47,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-06 20:58:47,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-06 20:58:47,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 20:58:47,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-06 20:58:47,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-06 20:58:47,358 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-06 20:58:47,358 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-06 20:58:47,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-06 20:58:47,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-06 20:58:47,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-06 20:58:47,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-06 20:58:47,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-06 20:58:47,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-06 20:58:47,787 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-06 20:58:47,788 INFO L275 PluginConnector]: CDTParser initialized [2021-10-06 20:58:47,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/chromosome-opt-symm.wvr.c [2021-10-06 20:58:47,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e6234efe/840d5886b4b740bb8c3ed6b6dd2eb29d/FLAGb68063cd9 [2021-10-06 20:58:48,661 INFO L306 CDTParser]: Found 1 translation units. [2021-10-06 20:58:48,662 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/chromosome-opt-symm.wvr.c [2021-10-06 20:58:48,675 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e6234efe/840d5886b4b740bb8c3ed6b6dd2eb29d/FLAGb68063cd9 [2021-10-06 20:58:48,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e6234efe/840d5886b4b740bb8c3ed6b6dd2eb29d [2021-10-06 20:58:49,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-06 20:58:49,008 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-06 20:58:49,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-06 20:58:49,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-06 20:58:49,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-06 20:58:49,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 08:58:48" (1/1) ... [2021-10-06 20:58:49,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5398e55f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:58:49, skipping insertion in model container [2021-10-06 20:58:49,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 08:58:48" (1/1) ... [2021-10-06 20:58:49,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-06 20:58:49,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 20:58:49,237 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/chromosome-opt-symm.wvr.c[2379,2392] [2021-10-06 20:58:49,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 20:58:49,260 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-06 20:58:49,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 20:58:49,287 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/chromosome-opt-symm.wvr.c[2379,2392] [2021-10-06 20:58:49,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 20:58:49,307 INFO L203 MainTranslator]: Completed pre-run [2021-10-06 20:58:49,341 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/chromosome-opt-symm.wvr.c[2379,2392] [2021-10-06 20:58:49,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 20:58:49,364 INFO L208 MainTranslator]: Completed translation [2021-10-06 20:58:49,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:58:49 WrapperNode [2021-10-06 20:58:49,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-06 20:58:49,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-06 20:58:49,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-06 20:58:49,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-06 20:58:49,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:58:49" (1/1) ... [2021-10-06 20:58:49,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:58:49" (1/1) ... [2021-10-06 20:58:49,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-06 20:58:49,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-06 20:58:49,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-06 20:58:49,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-06 20:58:49,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:58:49" (1/1) ... [2021-10-06 20:58:49,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:58:49" (1/1) ... [2021-10-06 20:58:49,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:58:49" (1/1) ... [2021-10-06 20:58:49,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:58:49" (1/1) ... [2021-10-06 20:58:49,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:58:49" (1/1) ... [2021-10-06 20:58:49,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:58:49" (1/1) ... [2021-10-06 20:58:49,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:58:49" (1/1) ... [2021-10-06 20:58:49,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-06 20:58:49,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-06 20:58:49,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-06 20:58:49,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-06 20:58:49,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:58:49" (1/1) ... [2021-10-06 20:58:49,491 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 20:58:49,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 20:58:49,522 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) [2021-10-06 20:58:49,527 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 [2021-10-06 20:58:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-06 20:58:49,584 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-06 20:58:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-06 20:58:49,585 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-06 20:58:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-06 20:58:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-06 20:58:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-06 20:58:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-06 20:58:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-06 20:58:49,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-06 20:58:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-06 20:58:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-06 20:58:49,588 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-06 20:58:50,421 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-06 20:58:50,423 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-06 20:58:50,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 08:58:50 BoogieIcfgContainer [2021-10-06 20:58:50,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-06 20:58:50,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-06 20:58:50,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-06 20:58:50,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-06 20:58:50,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 08:58:48" (1/3) ... [2021-10-06 20:58:50,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64bffc45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 08:58:50, skipping insertion in model container [2021-10-06 20:58:50,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:58:49" (2/3) ... [2021-10-06 20:58:50,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64bffc45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 08:58:50, skipping insertion in model container [2021-10-06 20:58:50,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 08:58:50" (3/3) ... [2021-10-06 20:58:50,437 INFO L111 eAbstractionObserver]: Analyzing ICFG chromosome-opt-symm.wvr.c [2021-10-06 20:58:50,444 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-06 20:58:50,444 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-10-06 20:58:50,444 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-06 20:58:50,516 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,517 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,517 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,517 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,517 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,518 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,518 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,518 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,518 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,518 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,518 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,519 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,519 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,519 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,519 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,520 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,520 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,520 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,520 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,521 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,521 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,522 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,522 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,522 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,523 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,524 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,524 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,524 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,525 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,525 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,526 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,528 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,529 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,529 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,529 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,529 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,531 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,531 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,532 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,532 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,533 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,533 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,534 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,534 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,534 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,535 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,535 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,535 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,535 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,536 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,536 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,537 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,537 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,539 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,539 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,539 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,541 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,541 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,544 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,544 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,544 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,544 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,545 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,545 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,546 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,547 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,550 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,556 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,557 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,557 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,557 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,557 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,557 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,557 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,561 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,561 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,561 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,561 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,561 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,562 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,562 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,562 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,562 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,562 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,563 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,563 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,564 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,565 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,565 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,565 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,566 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,566 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,566 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,566 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,567 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,567 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,567 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,567 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,568 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,568 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,568 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,568 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,568 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,569 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,569 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,569 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,570 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,570 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,570 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,570 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,571 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,571 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,571 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,571 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,571 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,571 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,572 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,572 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,572 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,572 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,573 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,573 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,573 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,573 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,574 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,574 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,574 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,574 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,574 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,575 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,576 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,578 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,578 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,578 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,578 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,578 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,580 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,580 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,580 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,580 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,580 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,583 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,583 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,583 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,583 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,583 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,583 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,584 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,584 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,584 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,584 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,584 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,584 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,585 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,585 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,585 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,585 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,585 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,589 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,590 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,590 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,590 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,590 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,590 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,591 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,591 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,591 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,591 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,591 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,592 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,592 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,597 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,598 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,598 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,598 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,598 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,599 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,599 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,599 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,599 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,599 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,600 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,600 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,600 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:58:50,605 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-06 20:58:50,656 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-06 20:58:50,670 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 [2021-10-06 20:58:50,671 INFO L340 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2021-10-06 20:58:50,706 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-06 20:58:50,718 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 211 transitions, 438 flow [2021-10-06 20:58:50,721 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 211 transitions, 438 flow [2021-10-06 20:58:50,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 199 places, 211 transitions, 438 flow [2021-10-06 20:58:50,824 INFO L129 PetriNetUnfolder]: 19/209 cut-off events. [2021-10-06 20:58:50,824 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-06 20:58:50,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 209 events. 19/209 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 410 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 137. Up to 3 conditions per place. [2021-10-06 20:58:50,842 INFO L116 LiptonReduction]: Number of co-enabled transitions 6120 [2021-10-06 20:59:28,937 INFO L131 LiptonReduction]: Checked pairs total: 8699 [2021-10-06 20:59:28,937 INFO L133 LiptonReduction]: Total number of compositions: 231 [2021-10-06 20:59:28,948 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 57 transitions, 130 flow [2021-10-06 20:59:29,006 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 777 states, 491 states have (on average 4.346232179226069) internal successors, (2134), 776 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:59:29,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 777 states, 491 states have (on average 4.346232179226069) internal successors, (2134), 776 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:59:29,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-06 20:59:29,018 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 20:59:29,019 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-06 20:59:29,020 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 20:59:29,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 20:59:29,030 INFO L82 PathProgramCache]: Analyzing trace with hash 27075, now seen corresponding path program 1 times [2021-10-06 20:59:29,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 20:59:29,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288031549] [2021-10-06 20:59:29,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 20:59:29,045 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 20:59:29,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 20:59:29,049 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) [2021-10-06 20:59:29,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-06 20:59:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 20:59:29,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-06 20:59:29,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 20:59:29,452 INFO L354 Elim1Store]: treesize reduction 133, result has 28.1 percent of original size [2021-10-06 20:59:29,453 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 4 case distinctions, treesize of input 18 treesize of output 57 [2021-10-06 20:59:29,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 20:59:29,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 20:59:29,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 20:59:29,705 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 20:59:29,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288031549] [2021-10-06 20:59:29,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288031549] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 20:59:29,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 20:59:29,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-06 20:59:29,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86570398] [2021-10-06 20:59:29,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 20:59:29,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 20:59:29,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 20:59:29,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 20:59:29,747 INFO L87 Difference]: Start difference. First operand has 777 states, 491 states have (on average 4.346232179226069) internal successors, (2134), 776 states have internal predecessors, (2134), 0 states have call successors, (0), 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) [2021-10-06 20:59:31,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 20:59:31,310 INFO L93 Difference]: Finished difference Result 1554 states and 4221 transitions. [2021-10-06 20:59:31,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-06 20:59:31,314 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 [2021-10-06 20:59:31,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 20:59:31,350 INFO L225 Difference]: With dead ends: 1554 [2021-10-06 20:59:31,350 INFO L226 Difference]: Without dead ends: 1554 [2021-10-06 20:59:31,351 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 81.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 20:59:31,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2021-10-06 20:59:31,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 524. [2021-10-06 20:59:31,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 355 states have (on average 4.014084507042254) internal successors, (1425), 523 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:59:31,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1425 transitions. [2021-10-06 20:59:31,474 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1425 transitions. Word has length 2 [2021-10-06 20:59:31,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 20:59:31,474 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 1425 transitions. [2021-10-06 20:59:31,475 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) [2021-10-06 20:59:31,475 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1425 transitions. [2021-10-06 20:59:31,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-06 20:59:31,475 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 20:59:31,475 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-06 20:59:31,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-06 20:59:31,689 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 [2021-10-06 20:59:31,690 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 20:59:31,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 20:59:31,691 INFO L82 PathProgramCache]: Analyzing trace with hash 27076, now seen corresponding path program 1 times [2021-10-06 20:59:31,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 20:59:31,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456154981] [2021-10-06 20:59:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 20:59:31,696 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 20:59:31,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 20:59:31,698 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) [2021-10-06 20:59:31,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-06 20:59:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 20:59:31,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-06 20:59:31,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 20:59:31,787 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-06 20:59:31,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 22 [2021-10-06 20:59:31,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 20:59:31,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 20:59:31,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 20:59:31,821 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 20:59:31,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456154981] [2021-10-06 20:59:31,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456154981] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 20:59:31,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 20:59:31,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-06 20:59:31,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95540597] [2021-10-06 20:59:31,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-06 20:59:31,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 20:59:31,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-06 20:59:31,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 20:59:31,826 INFO L87 Difference]: Start difference. First operand 524 states and 1425 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) [2021-10-06 20:59:32,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 20:59:32,194 INFO L93 Difference]: Finished difference Result 522 states and 1419 transitions. [2021-10-06 20:59:32,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 20:59:32,195 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 [2021-10-06 20:59:32,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 20:59:32,200 INFO L225 Difference]: With dead ends: 522 [2021-10-06 20:59:32,201 INFO L226 Difference]: Without dead ends: 522 [2021-10-06 20:59:32,201 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 20:59:32,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2021-10-06 20:59:32,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2021-10-06 20:59:32,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 355 states have (on average 3.9971830985915493) internal successors, (1419), 521 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:59:32,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 1419 transitions. [2021-10-06 20:59:32,226 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 1419 transitions. Word has length 2 [2021-10-06 20:59:32,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 20:59:32,226 INFO L470 AbstractCegarLoop]: Abstraction has 522 states and 1419 transitions. [2021-10-06 20:59:32,226 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) [2021-10-06 20:59:32,227 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 1419 transitions. [2021-10-06 20:59:32,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 20:59:32,227 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 20:59:32,227 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 20:59:32,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-06 20:59:32,440 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 [2021-10-06 20:59:32,441 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 20:59:32,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 20:59:32,442 INFO L82 PathProgramCache]: Analyzing trace with hash 846116, now seen corresponding path program 1 times [2021-10-06 20:59:32,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 20:59:32,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609513524] [2021-10-06 20:59:32,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 20:59:32,444 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 20:59:32,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 20:59:32,446 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) [2021-10-06 20:59:32,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-06 20:59:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 20:59:32,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-06 20:59:32,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 20:59:32,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 20:59:32,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 20:59:32,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 20:59:32,577 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 20:59:32,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609513524] [2021-10-06 20:59:32,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609513524] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 20:59:32,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 20:59:32,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-06 20:59:32,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971449837] [2021-10-06 20:59:32,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 20:59:32,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 20:59:32,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 20:59:32,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 20:59:32,582 INFO L87 Difference]: Start difference. First operand 522 states and 1419 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:59:32,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 20:59:32,698 INFO L93 Difference]: Finished difference Result 522 states and 1411 transitions. [2021-10-06 20:59:32,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-06 20:59:32,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-06 20:59:32,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 20:59:32,705 INFO L225 Difference]: With dead ends: 522 [2021-10-06 20:59:32,706 INFO L226 Difference]: Without dead ends: 522 [2021-10-06 20:59:32,706 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 20:59:32,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2021-10-06 20:59:32,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2021-10-06 20:59:32,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 355 states have (on average 3.9746478873239437) internal successors, (1411), 521 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:59:32,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 1411 transitions. [2021-10-06 20:59:32,755 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 1411 transitions. Word has length 3 [2021-10-06 20:59:32,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 20:59:32,755 INFO L470 AbstractCegarLoop]: Abstraction has 522 states and 1411 transitions. [2021-10-06 20:59:32,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:59:32,756 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 1411 transitions. [2021-10-06 20:59:32,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-06 20:59:32,756 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 20:59:32,756 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-06 20:59:32,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-06 20:59:32,968 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 [2021-10-06 20:59:32,969 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 20:59:32,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 20:59:32,971 INFO L82 PathProgramCache]: Analyzing trace with hash 26165283, now seen corresponding path program 1 times [2021-10-06 20:59:32,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 20:59:32,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731733498] [2021-10-06 20:59:32,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 20:59:32,972 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 20:59:32,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 20:59:32,974 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) [2021-10-06 20:59:33,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-06 20:59:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 20:59:33,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-06 20:59:33,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 20:59:33,239 INFO L354 Elim1Store]: treesize reduction 133, result has 28.1 percent of original size [2021-10-06 20:59:33,239 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 4 case distinctions, treesize of input 18 treesize of output 57 [2021-10-06 20:59:33,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 20:59:33,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 20:59:33,827 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 20:59:33,828 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 20:59:33,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731733498] [2021-10-06 20:59:33,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731733498] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-06 20:59:33,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-06 20:59:33,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-06 20:59:33,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991879269] [2021-10-06 20:59:33,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-06 20:59:33,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 20:59:33,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-06 20:59:33,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-06 20:59:33,831 INFO L87 Difference]: Start difference. First operand 522 states and 1411 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) [2021-10-06 20:59:37,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 20:59:37,468 INFO L93 Difference]: Finished difference Result 2067 states and 5623 transitions. [2021-10-06 20:59:37,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-06 20:59:37,471 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 [2021-10-06 20:59:37,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 20:59:37,489 INFO L225 Difference]: With dead ends: 2067 [2021-10-06 20:59:37,490 INFO L226 Difference]: Without dead ends: 2067 [2021-10-06 20:59:37,490 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 589.7ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-06 20:59:37,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2021-10-06 20:59:37,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 528. [2021-10-06 20:59:37,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 361 states have (on average 3.958448753462604) internal successors, (1429), 527 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:59:37,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1429 transitions. [2021-10-06 20:59:37,533 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1429 transitions. Word has length 4 [2021-10-06 20:59:37,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 20:59:37,533 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 1429 transitions. [2021-10-06 20:59:37,533 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) [2021-10-06 20:59:37,534 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1429 transitions. [2021-10-06 20:59:37,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-06 20:59:37,534 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 20:59:37,534 INFO L512 BasicCegarLoop]: trace histogram [5, 1, 1] [2021-10-06 20:59:37,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-06 20:59:37,750 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 [2021-10-06 20:59:37,751 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 20:59:37,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 20:59:37,752 INFO L82 PathProgramCache]: Analyzing trace with hash 2105402294, now seen corresponding path program 2 times [2021-10-06 20:59:37,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 20:59:37,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906351615] [2021-10-06 20:59:37,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-06 20:59:37,754 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 20:59:37,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 20:59:37,756 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) [2021-10-06 20:59:37,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-06 20:59:37,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-06 20:59:37,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 20:59:37,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-06 20:59:37,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 20:59:37,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-06 20:59:37,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-06 20:59:37,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-06 20:59:38,023 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-06 20:59:38,025 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 4 case distinctions, treesize of input 20 treesize of output 59 [2021-10-06 20:59:38,317 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 20:59:38,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 20:59:39,501 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 20:59:39,502 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 20:59:39,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906351615] [2021-10-06 20:59:39,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906351615] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-06 20:59:39,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-06 20:59:39,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-10-06 20:59:39,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016290612] [2021-10-06 20:59:39,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-06 20:59:39,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 20:59:39,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-06 20:59:39,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-10-06 20:59:39,504 INFO L87 Difference]: Start difference. First operand 528 states and 1429 transitions. Second operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 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) [2021-10-06 20:59:40,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 20:59:40,192 INFO L93 Difference]: Finished difference Result 526 states and 1413 transitions. [2021-10-06 20:59:40,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-06 20:59:40,193 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 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 7 [2021-10-06 20:59:40,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 20:59:40,198 INFO L225 Difference]: With dead ends: 526 [2021-10-06 20:59:40,198 INFO L226 Difference]: Without dead ends: 526 [2021-10-06 20:59:40,199 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1014.9ms TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-10-06 20:59:40,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2021-10-06 20:59:40,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2021-10-06 20:59:40,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 361 states have (on average 3.914127423822715) internal successors, (1413), 525 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:59:40,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1413 transitions. [2021-10-06 20:59:40,218 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1413 transitions. Word has length 7 [2021-10-06 20:59:40,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 20:59:40,219 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 1413 transitions. [2021-10-06 20:59:40,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 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) [2021-10-06 20:59:40,219 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1413 transitions. [2021-10-06 20:59:40,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-06 20:59:40,219 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 20:59:40,220 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1] [2021-10-06 20:59:40,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-06 20:59:40,441 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 [2021-10-06 20:59:40,441 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 20:59:40,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 20:59:40,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1537867367, now seen corresponding path program 1 times [2021-10-06 20:59:40,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 20:59:40,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725616750] [2021-10-06 20:59:40,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 20:59:40,444 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 20:59:40,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 20:59:40,446 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) [2021-10-06 20:59:40,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-06 20:59:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 20:59:40,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-06 20:59:40,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 20:59:40,728 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-06 20:59:40,729 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 3 case distinctions, treesize of input 32 treesize of output 39 [2021-10-06 20:59:41,024 INFO L354 Elim1Store]: treesize reduction 30, result has 36.2 percent of original size [2021-10-06 20:59:41,025 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 3 case distinctions, treesize of input 32 treesize of output 43 [2021-10-06 20:59:41,541 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 20:59:41,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 20:59:41,604 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 20:59:41,604 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 20:59:41,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725616750] [2021-10-06 20:59:41,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725616750] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 20:59:41,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 20:59:41,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-06 20:59:41,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423503980] [2021-10-06 20:59:41,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 20:59:41,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 20:59:41,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 20:59:41,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 20:59:41,607 INFO L87 Difference]: Start difference. First operand 526 states and 1413 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) [2021-10-06 20:59:41,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 20:59:41,886 INFO L93 Difference]: Finished difference Result 420 states and 1083 transitions. [2021-10-06 20:59:41,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 20:59:41,887 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 13 [2021-10-06 20:59:41,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 20:59:41,891 INFO L225 Difference]: With dead ends: 420 [2021-10-06 20:59:41,891 INFO L226 Difference]: Without dead ends: 420 [2021-10-06 20:59:41,891 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 326.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 20:59:41,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2021-10-06 20:59:41,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2021-10-06 20:59:41,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 301 states have (on average 3.5980066445182723) internal successors, (1083), 419 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:59:41,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 1083 transitions. [2021-10-06 20:59:41,905 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 1083 transitions. Word has length 13 [2021-10-06 20:59:41,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 20:59:41,905 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 1083 transitions. [2021-10-06 20:59:41,905 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) [2021-10-06 20:59:41,906 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 1083 transitions. [2021-10-06 20:59:41,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-06 20:59:41,906 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 20:59:41,906 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1] [2021-10-06 20:59:41,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-06 20:59:42,120 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 [2021-10-06 20:59:42,121 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 20:59:42,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 20:59:42,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1537867366, now seen corresponding path program 1 times [2021-10-06 20:59:42,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 20:59:42,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51097034] [2021-10-06 20:59:42,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 20:59:42,124 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 20:59:42,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 20:59:42,125 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) [2021-10-06 20:59:42,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-06 20:59:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 20:59:42,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-06 20:59:42,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 20:59:42,517 INFO L354 Elim1Store]: treesize reduction 145, result has 24.9 percent of original size [2021-10-06 20:59:42,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 73 [2021-10-06 20:59:42,526 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 74 treesize of output 72 [2021-10-06 20:59:43,024 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-10-06 20:59:43,025 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 3 case distinctions, treesize of input 25 treesize of output 38 [2021-10-06 20:59:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 20:59:44,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 20:59:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 20:59:45,198 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 20:59:45,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51097034] [2021-10-06 20:59:45,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51097034] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 20:59:45,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 20:59:45,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-10-06 20:59:45,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313343633] [2021-10-06 20:59:45,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-06 20:59:45,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 20:59:45,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-06 20:59:45,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-06 20:59:45,201 INFO L87 Difference]: Start difference. First operand 420 states and 1083 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2021-10-06 20:59:46,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 20:59:46,319 INFO L93 Difference]: Finished difference Result 314 states and 753 transitions. [2021-10-06 20:59:46,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-06 20:59:46,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 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 13 [2021-10-06 20:59:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 20:59:46,324 INFO L225 Difference]: With dead ends: 314 [2021-10-06 20:59:46,325 INFO L226 Difference]: Without dead ends: 314 [2021-10-06 20:59:46,325 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 267.5ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-10-06 20:59:46,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-10-06 20:59:46,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2021-10-06 20:59:46,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 241 states have (on average 3.12448132780083) internal successors, (753), 313 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:59:46,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 753 transitions. [2021-10-06 20:59:46,336 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 753 transitions. Word has length 13 [2021-10-06 20:59:46,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 20:59:46,336 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 753 transitions. [2021-10-06 20:59:46,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2021-10-06 20:59:46,336 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 753 transitions. [2021-10-06 20:59:46,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-06 20:59:46,337 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 20:59:46,337 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1] [2021-10-06 20:59:46,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-06 20:59:46,550 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 [2021-10-06 20:59:46,551 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 20:59:46,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 20:59:46,552 INFO L82 PathProgramCache]: Analyzing trace with hash -421771657, now seen corresponding path program 1 times [2021-10-06 20:59:46,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 20:59:46,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914208775] [2021-10-06 20:59:46,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 20:59:46,554 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 20:59:46,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 20:59:46,555 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) [2021-10-06 20:59:46,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-06 20:59:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 20:59:46,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-06 20:59:46,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 20:59:46,827 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-06 20:59:46,828 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 2 case distinctions, treesize of input 27 treesize of output 34 [2021-10-06 20:59:47,147 INFO L354 Elim1Store]: treesize reduction 57, result has 30.5 percent of original size [2021-10-06 20:59:47,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 57 [2021-10-06 20:59:47,530 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 20:59:47,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 20:59:47,602 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 20:59:47,603 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 20:59:47,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914208775] [2021-10-06 20:59:47,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914208775] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 20:59:47,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 20:59:47,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-06 20:59:47,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314442420] [2021-10-06 20:59:47,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 20:59:47,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 20:59:47,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 20:59:47,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 20:59:47,605 INFO L87 Difference]: Start difference. First operand 314 states and 753 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) [2021-10-06 20:59:47,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 20:59:47,921 INFO L93 Difference]: Finished difference Result 292 states and 707 transitions. [2021-10-06 20:59:47,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 20:59:47,922 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 15 [2021-10-06 20:59:47,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 20:59:47,924 INFO L225 Difference]: With dead ends: 292 [2021-10-06 20:59:47,924 INFO L226 Difference]: Without dead ends: 292 [2021-10-06 20:59:47,925 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 20:59:47,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-10-06 20:59:47,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2021-10-06 20:59:47,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 233 states have (on average 3.0343347639484977) internal successors, (707), 291 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:59:47,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 707 transitions. [2021-10-06 20:59:47,940 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 707 transitions. Word has length 15 [2021-10-06 20:59:47,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 20:59:47,941 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 707 transitions. [2021-10-06 20:59:47,941 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) [2021-10-06 20:59:47,941 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 707 transitions. [2021-10-06 20:59:47,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-06 20:59:47,942 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 20:59:47,942 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1] [2021-10-06 20:59:47,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-06 20:59:48,157 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 [2021-10-06 20:59:48,158 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 20:59:48,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 20:59:48,159 INFO L82 PathProgramCache]: Analyzing trace with hash -421771656, now seen corresponding path program 1 times [2021-10-06 20:59:48,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 20:59:48,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273365612] [2021-10-06 20:59:48,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 20:59:48,160 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 20:59:48,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 20:59:48,161 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) [2021-10-06 20:59:48,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-06 20:59:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 20:59:48,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-06 20:59:48,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 20:59:48,561 INFO L354 Elim1Store]: treesize reduction 149, result has 22.8 percent of original size [2021-10-06 20:59:48,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 63 [2021-10-06 20:59:48,569 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 65 treesize of output 63 [2021-10-06 20:59:49,175 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-10-06 20:59:49,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 52 [2021-10-06 20:59:56,124 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 20:59:56,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 20:59:56,439 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 20:59:56,440 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 20:59:56,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273365612] [2021-10-06 20:59:56,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273365612] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 20:59:56,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 20:59:56,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-10-06 20:59:56,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765774069] [2021-10-06 20:59:56,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-06 20:59:56,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 20:59:56,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-06 20:59:56,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-06 20:59:56,442 INFO L87 Difference]: Start difference. First operand 292 states and 707 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2021-10-06 20:59:57,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 20:59:57,098 INFO L93 Difference]: Finished difference Result 270 states and 661 transitions. [2021-10-06 20:59:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-06 20:59:57,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 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 15 [2021-10-06 20:59:57,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 20:59:57,102 INFO L225 Difference]: With dead ends: 270 [2021-10-06 20:59:57,102 INFO L226 Difference]: Without dead ends: 270 [2021-10-06 20:59:57,102 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 266.9ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-10-06 20:59:57,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-10-06 20:59:57,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2021-10-06 20:59:57,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 225 states have (on average 2.937777777777778) internal successors, (661), 269 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:59:57,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 661 transitions. [2021-10-06 20:59:57,112 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 661 transitions. Word has length 15 [2021-10-06 20:59:57,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 20:59:57,113 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 661 transitions. [2021-10-06 20:59:57,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2021-10-06 20:59:57,113 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 661 transitions. [2021-10-06 20:59:57,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-06 20:59:57,113 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 20:59:57,114 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1] [2021-10-06 20:59:57,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-06 20:59:57,327 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 [2021-10-06 20:59:57,328 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 20:59:57,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 20:59:57,328 INFO L82 PathProgramCache]: Analyzing trace with hash -190018338, now seen corresponding path program 1 times [2021-10-06 20:59:57,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 20:59:57,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613119175] [2021-10-06 20:59:57,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 20:59:57,330 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 20:59:57,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 20:59:57,333 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) [2021-10-06 20:59:57,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-06 20:59:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 20:59:57,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-06 20:59:57,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 20:59:57,821 INFO L354 Elim1Store]: treesize reduction 133, result has 28.1 percent of original size [2021-10-06 20:59:57,822 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 4 case distinctions, treesize of input 31 treesize of output 69 [2021-10-06 20:59:57,861 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-06 20:59:57,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 78 [2021-10-06 20:59:58,006 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-06 20:59:58,007 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 19 treesize of output 19 [2021-10-06 20:59:58,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-10-06 21:00:00,437 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:00,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:01,101 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:01,101 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:01,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613119175] [2021-10-06 21:00:01,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613119175] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:01,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:01,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 7 [2021-10-06 21:00:01,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907948992] [2021-10-06 21:00:01,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-06 21:00:01,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:01,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-06 21:00:01,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-10-06 21:00:01,104 INFO L87 Difference]: Start difference. First operand 270 states and 661 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2021-10-06 21:00:01,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:01,851 INFO L93 Difference]: Finished difference Result 526 states and 1331 transitions. [2021-10-06 21:00:01,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-06 21:00:01,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 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 16 [2021-10-06 21:00:01,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:01,857 INFO L225 Difference]: With dead ends: 526 [2021-10-06 21:00:01,857 INFO L226 Difference]: Without dead ends: 526 [2021-10-06 21:00:01,857 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2645.8ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-10-06 21:00:01,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2021-10-06 21:00:01,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 350. [2021-10-06 21:00:01,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 310 states have (on average 3.432258064516129) internal successors, (1064), 349 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:01,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 1064 transitions. [2021-10-06 21:00:01,873 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 1064 transitions. Word has length 16 [2021-10-06 21:00:01,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:01,874 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 1064 transitions. [2021-10-06 21:00:01,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2021-10-06 21:00:01,874 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 1064 transitions. [2021-10-06 21:00:01,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-06 21:00:01,875 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:01,875 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:01,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:02,088 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 [2021-10-06 21:00:02,089 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:02,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:02,090 INFO L82 PathProgramCache]: Analyzing trace with hash -190018337, now seen corresponding path program 1 times [2021-10-06 21:00:02,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:02,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730564924] [2021-10-06 21:00:02,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:02,091 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:02,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:02,093 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) [2021-10-06 21:00:02,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-06 21:00:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:02,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-06 21:00:02,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:02,440 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-06 21:00:02,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 22 [2021-10-06 21:00:02,497 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-06 21:00:02,497 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 2 case distinctions, treesize of input 22 treesize of output 29 [2021-10-06 21:00:02,674 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:02,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:04,864 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:04,865 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:04,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730564924] [2021-10-06 21:00:04,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730564924] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:04,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:04,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 2] imperfect sequences [] total 5 [2021-10-06 21:00:04,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619035642] [2021-10-06 21:00:04,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-06 21:00:04,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:04,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-06 21:00:04,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2021-10-06 21:00:04,868 INFO L87 Difference]: Start difference. First operand 350 states and 1064 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-10-06 21:00:05,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:05,085 INFO L93 Difference]: Finished difference Result 280 states and 820 transitions. [2021-10-06 21:00:05,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-06 21:00:05,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 16 [2021-10-06 21:00:05,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:05,088 INFO L225 Difference]: With dead ends: 280 [2021-10-06 21:00:05,088 INFO L226 Difference]: Without dead ends: 280 [2021-10-06 21:00:05,088 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2141.3ms TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2021-10-06 21:00:05,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-10-06 21:00:05,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2021-10-06 21:00:05,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 256 states have (on average 3.203125) internal successors, (820), 279 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:05,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 820 transitions. [2021-10-06 21:00:05,107 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 820 transitions. Word has length 16 [2021-10-06 21:00:05,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:05,108 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 820 transitions. [2021-10-06 21:00:05,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-10-06 21:00:05,108 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 820 transitions. [2021-10-06 21:00:05,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-06 21:00:05,109 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:05,110 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:05,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-10-06 21:00:05,310 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 [2021-10-06 21:00:05,311 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:05,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:05,312 INFO L82 PathProgramCache]: Analyzing trace with hash -190018202, now seen corresponding path program 1 times [2021-10-06 21:00:05,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:05,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099448386] [2021-10-06 21:00:05,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:05,313 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:05,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:05,315 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) [2021-10-06 21:00:05,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-06 21:00:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:05,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-06 21:00:05,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:05,583 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-06 21:00:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:05,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:05,916 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:05,917 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:05,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099448386] [2021-10-06 21:00:05,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099448386] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:05,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:05,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-06 21:00:05,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319171417] [2021-10-06 21:00:05,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-06 21:00:05,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:05,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-06 21:00:05,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-06 21:00:05,919 INFO L87 Difference]: Start difference. First operand 280 states and 820 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 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) [2021-10-06 21:00:06,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:06,418 INFO L93 Difference]: Finished difference Result 378 states and 944 transitions. [2021-10-06 21:00:06,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-06 21:00:06,419 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 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 16 [2021-10-06 21:00:06,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:06,422 INFO L225 Difference]: With dead ends: 378 [2021-10-06 21:00:06,422 INFO L226 Difference]: Without dead ends: 378 [2021-10-06 21:00:06,423 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 211.6ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-06 21:00:06,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-10-06 21:00:06,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 266. [2021-10-06 21:00:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 246 states have (on average 3.024390243902439) internal successors, (744), 265 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:06,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 744 transitions. [2021-10-06 21:00:06,433 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 744 transitions. Word has length 16 [2021-10-06 21:00:06,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:06,433 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 744 transitions. [2021-10-06 21:00:06,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 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) [2021-10-06 21:00:06,433 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 744 transitions. [2021-10-06 21:00:06,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-06 21:00:06,434 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:06,434 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:06,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:06,647 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 [2021-10-06 21:00:06,648 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:06,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:06,648 INFO L82 PathProgramCache]: Analyzing trace with hash -190018201, now seen corresponding path program 1 times [2021-10-06 21:00:06,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:06,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [805255981] [2021-10-06 21:00:06,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:06,650 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:06,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:06,651 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) [2021-10-06 21:00:06,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-06 21:00:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:06,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-06 21:00:06,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:06,901 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-06 21:00:06,942 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:06,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:06,982 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:06,982 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:06,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [805255981] [2021-10-06 21:00:06,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [805255981] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:06,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:06,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-06 21:00:06,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055028930] [2021-10-06 21:00:06,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 21:00:06,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:06,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 21:00:06,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:00:06,984 INFO L87 Difference]: Start difference. First operand 266 states and 744 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2021-10-06 21:00:07,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:07,236 INFO L93 Difference]: Finished difference Result 206 states and 543 transitions. [2021-10-06 21:00:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-06 21:00:07,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 16 [2021-10-06 21:00:07,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:07,243 INFO L225 Difference]: With dead ends: 206 [2021-10-06 21:00:07,243 INFO L226 Difference]: Without dead ends: 206 [2021-10-06 21:00:07,243 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-06 21:00:07,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-10-06 21:00:07,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2021-10-06 21:00:07,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 197 states have (on average 2.7563451776649748) internal successors, (543), 205 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:07,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 543 transitions. [2021-10-06 21:00:07,252 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 543 transitions. Word has length 16 [2021-10-06 21:00:07,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:07,253 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 543 transitions. [2021-10-06 21:00:07,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2021-10-06 21:00:07,253 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 543 transitions. [2021-10-06 21:00:07,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-06 21:00:07,254 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:07,254 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:07,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:07,462 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 [2021-10-06 21:00:07,462 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:07,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:07,463 INFO L82 PathProgramCache]: Analyzing trace with hash 2075527790, now seen corresponding path program 1 times [2021-10-06 21:00:07,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:07,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349142251] [2021-10-06 21:00:07,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:07,465 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:07,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:07,466 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) [2021-10-06 21:00:07,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-06 21:00:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:07,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-06 21:00:07,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:07,749 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-06 21:00:07,853 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:07,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:08,116 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:08,116 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:08,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349142251] [2021-10-06 21:00:08,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349142251] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:08,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:08,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-06 21:00:08,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428062157] [2021-10-06 21:00:08,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-06 21:00:08,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:08,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-06 21:00:08,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-06 21:00:08,118 INFO L87 Difference]: Start difference. First operand 206 states and 543 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 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) [2021-10-06 21:00:08,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:08,597 INFO L93 Difference]: Finished difference Result 370 states and 1034 transitions. [2021-10-06 21:00:08,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-06 21:00:08,598 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 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 18 [2021-10-06 21:00:08,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:08,601 INFO L225 Difference]: With dead ends: 370 [2021-10-06 21:00:08,602 INFO L226 Difference]: Without dead ends: 370 [2021-10-06 21:00:08,603 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 204.7ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-06 21:00:08,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-10-06 21:00:08,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 270. [2021-10-06 21:00:08,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 261 states have (on average 3.268199233716475) internal successors, (853), 269 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:08,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 853 transitions. [2021-10-06 21:00:08,612 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 853 transitions. Word has length 18 [2021-10-06 21:00:08,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:08,613 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 853 transitions. [2021-10-06 21:00:08,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 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) [2021-10-06 21:00:08,613 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 853 transitions. [2021-10-06 21:00:08,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-06 21:00:08,614 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:08,615 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:08,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:08,825 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 [2021-10-06 21:00:08,825 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:08,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:08,826 INFO L82 PathProgramCache]: Analyzing trace with hash 2075527860, now seen corresponding path program 1 times [2021-10-06 21:00:08,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:08,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913604764] [2021-10-06 21:00:08,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:08,828 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:08,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:08,831 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) [2021-10-06 21:00:08,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-06 21:00:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:09,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-06 21:00:09,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:09,314 INFO L354 Elim1Store]: treesize reduction 133, result has 28.1 percent of original size [2021-10-06 21:00:09,315 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 4 case distinctions, treesize of input 31 treesize of output 69 [2021-10-06 21:00:09,352 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-06 21:00:09,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 78 [2021-10-06 21:00:09,486 INFO L354 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2021-10-06 21:00:09,486 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 1 case distinctions, treesize of input 14 treesize of output 20 [2021-10-06 21:00:09,507 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-06 21:00:09,507 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 16 treesize of output 16 [2021-10-06 21:00:15,565 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:15,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:16,176 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:16,177 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:16,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913604764] [2021-10-06 21:00:16,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913604764] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:16,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:16,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 7 [2021-10-06 21:00:16,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200428679] [2021-10-06 21:00:16,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-06 21:00:16,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:16,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-06 21:00:16,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-10-06 21:00:16,179 INFO L87 Difference]: Start difference. First operand 270 states and 853 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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) [2021-10-06 21:00:16,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:16,903 INFO L93 Difference]: Finished difference Result 338 states and 911 transitions. [2021-10-06 21:00:16,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-06 21:00:16,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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 18 [2021-10-06 21:00:16,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:16,907 INFO L225 Difference]: With dead ends: 338 [2021-10-06 21:00:16,907 INFO L226 Difference]: Without dead ends: 338 [2021-10-06 21:00:16,908 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 6215.2ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-10-06 21:00:16,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-10-06 21:00:16,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 270. [2021-10-06 21:00:16,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 261 states have (on average 3.0229885057471266) internal successors, (789), 269 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:16,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 789 transitions. [2021-10-06 21:00:16,927 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 789 transitions. Word has length 18 [2021-10-06 21:00:16,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:16,928 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 789 transitions. [2021-10-06 21:00:16,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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) [2021-10-06 21:00:16,928 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 789 transitions. [2021-10-06 21:00:16,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-06 21:00:16,933 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:16,934 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:16,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:17,136 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 [2021-10-06 21:00:17,136 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:17,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:17,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1717549294, now seen corresponding path program 1 times [2021-10-06 21:00:17,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:17,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598700354] [2021-10-06 21:00:17,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:17,138 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:17,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:17,139 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) [2021-10-06 21:00:17,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-06 21:00:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:17,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-06 21:00:17,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:17,480 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-06 21:00:17,639 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:17,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:18,235 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:18,236 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:18,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598700354] [2021-10-06 21:00:18,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598700354] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-06 21:00:18,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-06 21:00:18,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-06 21:00:18,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464529765] [2021-10-06 21:00:18,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-06 21:00:18,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:18,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-06 21:00:18,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-06 21:00:18,238 INFO L87 Difference]: Start difference. First operand 270 states and 789 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 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) [2021-10-06 21:00:19,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:19,377 INFO L93 Difference]: Finished difference Result 600 states and 1677 transitions. [2021-10-06 21:00:19,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-06 21:00:19,382 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 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 20 [2021-10-06 21:00:19,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:19,387 INFO L225 Difference]: With dead ends: 600 [2021-10-06 21:00:19,388 INFO L226 Difference]: Without dead ends: 600 [2021-10-06 21:00:19,388 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 661.3ms TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-10-06 21:00:19,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-10-06 21:00:19,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 366. [2021-10-06 21:00:19,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 357 states have (on average 3.5126050420168067) internal successors, (1254), 365 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:19,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 1254 transitions. [2021-10-06 21:00:19,403 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 1254 transitions. Word has length 20 [2021-10-06 21:00:19,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:19,403 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 1254 transitions. [2021-10-06 21:00:19,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 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) [2021-10-06 21:00:19,403 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 1254 transitions. [2021-10-06 21:00:19,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-06 21:00:19,404 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:19,404 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:19,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-10-06 21:00:19,619 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 [2021-10-06 21:00:19,619 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:19,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:19,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1717549364, now seen corresponding path program 1 times [2021-10-06 21:00:19,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:19,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859770249] [2021-10-06 21:00:19,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:19,622 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:19,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:19,623 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) [2021-10-06 21:00:19,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-06 21:00:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:20,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-06 21:00:20,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:20,189 INFO L354 Elim1Store]: treesize reduction 133, result has 28.1 percent of original size [2021-10-06 21:00:20,189 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 4 case distinctions, treesize of input 31 treesize of output 69 [2021-10-06 21:00:20,241 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-06 21:00:20,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 78 [2021-10-06 21:00:20,386 INFO L354 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2021-10-06 21:00:20,387 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 1 case distinctions, treesize of input 14 treesize of output 20 [2021-10-06 21:00:20,411 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-06 21:00:20,412 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 15 treesize of output 15 [2021-10-06 21:00:26,836 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:26,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:27,730 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:27,730 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:27,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859770249] [2021-10-06 21:00:27,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859770249] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-06 21:00:27,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-06 21:00:27,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 11 [2021-10-06 21:00:27,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314499439] [2021-10-06 21:00:27,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-06 21:00:27,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:27,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-06 21:00:27,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-10-06 21:00:27,732 INFO L87 Difference]: Start difference. First operand 366 states and 1254 transitions. Second operand has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 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) [2021-10-06 21:00:29,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:29,120 INFO L93 Difference]: Finished difference Result 536 states and 1463 transitions. [2021-10-06 21:00:29,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-06 21:00:29,122 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 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 20 [2021-10-06 21:00:29,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:29,127 INFO L225 Difference]: With dead ends: 536 [2021-10-06 21:00:29,127 INFO L226 Difference]: Without dead ends: 536 [2021-10-06 21:00:29,127 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 7030.6ms TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-10-06 21:00:29,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2021-10-06 21:00:29,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 366. [2021-10-06 21:00:29,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 357 states have (on average 3.2436974789915967) internal successors, (1158), 365 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:29,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 1158 transitions. [2021-10-06 21:00:29,141 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 1158 transitions. Word has length 20 [2021-10-06 21:00:29,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:29,142 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 1158 transitions. [2021-10-06 21:00:29,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 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) [2021-10-06 21:00:29,142 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 1158 transitions. [2021-10-06 21:00:29,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-06 21:00:29,143 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:29,143 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:29,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-10-06 21:00:29,356 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 [2021-10-06 21:00:29,357 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:29,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:29,357 INFO L82 PathProgramCache]: Analyzing trace with hash 2105896254, now seen corresponding path program 1 times [2021-10-06 21:00:29,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:29,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830818905] [2021-10-06 21:00:29,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:29,358 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:29,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:29,359 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) [2021-10-06 21:00:29,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-06 21:00:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:29,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-06 21:00:29,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:29,765 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-10-06 21:00:29,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:29,809 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-10-06 21:00:29,810 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:29,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830818905] [2021-10-06 21:00:29,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830818905] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:29,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:29,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-06 21:00:29,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252686730] [2021-10-06 21:00:29,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 21:00:29,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:29,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 21:00:29,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:00:29,812 INFO L87 Difference]: Start difference. First operand 366 states and 1158 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2021-10-06 21:00:29,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:29,843 INFO L93 Difference]: Finished difference Result 498 states and 1474 transitions. [2021-10-06 21:00:29,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-06 21:00:29,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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 22 [2021-10-06 21:00:29,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:29,846 INFO L225 Difference]: With dead ends: 498 [2021-10-06 21:00:29,846 INFO L226 Difference]: Without dead ends: 498 [2021-10-06 21:00:29,847 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:00:29,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2021-10-06 21:00:29,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 388. [2021-10-06 21:00:29,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 379 states have (on average 3.2242744063324538) internal successors, (1222), 387 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:29,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 1222 transitions. [2021-10-06 21:00:29,860 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 1222 transitions. Word has length 22 [2021-10-06 21:00:29,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:29,861 INFO L470 AbstractCegarLoop]: Abstraction has 388 states and 1222 transitions. [2021-10-06 21:00:29,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2021-10-06 21:00:29,861 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 1222 transitions. [2021-10-06 21:00:29,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-06 21:00:29,862 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:29,862 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:29,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:30,076 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 [2021-10-06 21:00:30,077 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:30,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:30,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1570847458, now seen corresponding path program 2 times [2021-10-06 21:00:30,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:30,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944592566] [2021-10-06 21:00:30,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-06 21:00:30,079 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:30,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:30,080 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) [2021-10-06 21:00:30,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-06 21:00:30,500 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-06 21:00:30,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 21:00:30,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-06 21:00:30,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:30,541 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-06 21:00:30,810 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:30,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:31,749 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:31,749 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:31,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944592566] [2021-10-06 21:00:31,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944592566] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-06 21:00:31,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-06 21:00:31,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 15 [2021-10-06 21:00:31,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51625927] [2021-10-06 21:00:31,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-06 21:00:31,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:31,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-06 21:00:31,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-10-06 21:00:31,752 INFO L87 Difference]: Start difference. First operand 388 states and 1222 transitions. Second operand has 16 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:33,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:33,456 INFO L93 Difference]: Finished difference Result 500 states and 1316 transitions. [2021-10-06 21:00:33,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-06 21:00:33,458 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have 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 [2021-10-06 21:00:33,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:33,462 INFO L225 Difference]: With dead ends: 500 [2021-10-06 21:00:33,462 INFO L226 Difference]: Without dead ends: 500 [2021-10-06 21:00:33,462 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1036.1ms TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2021-10-06 21:00:33,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2021-10-06 21:00:33,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 320. [2021-10-06 21:00:33,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 317 states have (on average 3.141955835962145) internal successors, (996), 319 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:33,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 996 transitions. [2021-10-06 21:00:33,476 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 996 transitions. Word has length 23 [2021-10-06 21:00:33,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:33,476 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 996 transitions. [2021-10-06 21:00:33,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:33,476 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 996 transitions. [2021-10-06 21:00:33,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-06 21:00:33,477 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:33,477 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:33,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:33,692 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 [2021-10-06 21:00:33,693 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:33,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:33,694 INFO L82 PathProgramCache]: Analyzing trace with hash 2056954498, now seen corresponding path program 1 times [2021-10-06 21:00:33,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:33,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036045477] [2021-10-06 21:00:33,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:33,695 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:33,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:33,696 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) [2021-10-06 21:00:33,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-06 21:00:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:34,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-06 21:00:34,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:34,101 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:34,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:34,157 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:34,157 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:34,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036045477] [2021-10-06 21:00:34,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036045477] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:34,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:34,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-06 21:00:34,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59519345] [2021-10-06 21:00:34,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-06 21:00:34,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:34,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-06 21:00:34,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-06 21:00:34,159 INFO L87 Difference]: Start difference. First operand 320 states and 996 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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) [2021-10-06 21:00:34,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:34,280 INFO L93 Difference]: Finished difference Result 482 states and 1344 transitions. [2021-10-06 21:00:34,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-06 21:00:34,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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 25 [2021-10-06 21:00:34,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:34,285 INFO L225 Difference]: With dead ends: 482 [2021-10-06 21:00:34,285 INFO L226 Difference]: Without dead ends: 470 [2021-10-06 21:00:34,285 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 21.3ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-06 21:00:34,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-10-06 21:00:34,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 320. [2021-10-06 21:00:34,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 317 states have (on average 3.1167192429022084) internal successors, (988), 319 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:34,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 988 transitions. [2021-10-06 21:00:34,298 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 988 transitions. Word has length 25 [2021-10-06 21:00:34,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:34,298 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 988 transitions. [2021-10-06 21:00:34,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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) [2021-10-06 21:00:34,299 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 988 transitions. [2021-10-06 21:00:34,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-06 21:00:34,300 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:34,300 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:34,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:34,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:00:34,514 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:34,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:34,515 INFO L82 PathProgramCache]: Analyzing trace with hash 144227006, now seen corresponding path program 2 times [2021-10-06 21:00:34,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:34,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440545542] [2021-10-06 21:00:34,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-06 21:00:34,517 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:34,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:34,517 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:00:34,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-06 21:00:34,780 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-06 21:00:34,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 21:00:34,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-06 21:00:34,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:34,860 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:34,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:34,925 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:34,925 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:34,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440545542] [2021-10-06 21:00:34,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440545542] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:34,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:34,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-06 21:00:34,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136716555] [2021-10-06 21:00:34,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-06 21:00:34,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:34,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-06 21:00:34,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-06 21:00:34,928 INFO L87 Difference]: Start difference. First operand 320 states and 988 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:35,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:35,049 INFO L93 Difference]: Finished difference Result 454 states and 1288 transitions. [2021-10-06 21:00:35,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-06 21:00:35,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-06 21:00:35,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:35,054 INFO L225 Difference]: With dead ends: 454 [2021-10-06 21:00:35,054 INFO L226 Difference]: Without dead ends: 454 [2021-10-06 21:00:35,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 21.7ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-06 21:00:35,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-10-06 21:00:35,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 334. [2021-10-06 21:00:35,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 331 states have (on average 3.0725075528700905) internal successors, (1017), 333 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:35,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 1017 transitions. [2021-10-06 21:00:35,066 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 1017 transitions. Word has length 25 [2021-10-06 21:00:35,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:35,067 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 1017 transitions. [2021-10-06 21:00:35,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:35,067 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 1017 transitions. [2021-10-06 21:00:35,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-06 21:00:35,068 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:35,068 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:35,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:35,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:00:35,281 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:35,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:35,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1900496762, now seen corresponding path program 3 times [2021-10-06 21:00:35,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:35,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000398488] [2021-10-06 21:00:35,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-06 21:00:35,283 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:35,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:35,284 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) [2021-10-06 21:00:35,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-06 21:00:35,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-06 21:00:35,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 21:00:35,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-06 21:00:35,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:35,616 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:35,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:35,671 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:35,672 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:35,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000398488] [2021-10-06 21:00:35,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000398488] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:35,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:35,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-06 21:00:35,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30458654] [2021-10-06 21:00:35,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-06 21:00:35,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:35,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-06 21:00:35,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-06 21:00:35,675 INFO L87 Difference]: Start difference. First operand 334 states and 1017 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:35,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:35,817 INFO L93 Difference]: Finished difference Result 484 states and 1432 transitions. [2021-10-06 21:00:35,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-06 21:00:35,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-06 21:00:35,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:35,822 INFO L225 Difference]: With dead ends: 484 [2021-10-06 21:00:35,822 INFO L226 Difference]: Without dead ends: 484 [2021-10-06 21:00:35,823 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.9ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-06 21:00:35,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-10-06 21:00:35,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 320. [2021-10-06 21:00:35,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 317 states have (on average 3.028391167192429) internal successors, (960), 319 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:35,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 960 transitions. [2021-10-06 21:00:35,834 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 960 transitions. Word has length 25 [2021-10-06 21:00:35,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:35,835 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 960 transitions. [2021-10-06 21:00:35,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:35,835 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 960 transitions. [2021-10-06 21:00:35,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-06 21:00:35,836 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:35,836 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:35,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-10-06 21:00:36,050 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 [2021-10-06 21:00:36,051 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:36,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:36,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1006856030, now seen corresponding path program 1 times [2021-10-06 21:00:36,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:36,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188303127] [2021-10-06 21:00:36,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:36,053 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:36,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:36,054 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) [2021-10-06 21:00:36,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-06 21:00:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:36,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-06 21:00:36,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:36,688 INFO L354 Elim1Store]: treesize reduction 133, result has 28.1 percent of original size [2021-10-06 21:00:36,688 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 4 case distinctions, treesize of input 31 treesize of output 69 [2021-10-06 21:00:36,730 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-06 21:00:36,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 78 [2021-10-06 21:00:36,849 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-06 21:00:36,850 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 15 treesize of output 15 [2021-10-06 21:00:36,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-10-06 21:00:43,519 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:43,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:44,700 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:44,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188303127] [2021-10-06 21:00:44,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188303127] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-06 21:00:44,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-06 21:00:44,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 11 [2021-10-06 21:00:44,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914966146] [2021-10-06 21:00:44,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-06 21:00:44,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:44,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-06 21:00:44,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-10-06 21:00:44,703 INFO L87 Difference]: Start difference. First operand 320 states and 960 transitions. Second operand has 13 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:46,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:46,280 INFO L93 Difference]: Finished difference Result 878 states and 2612 transitions. [2021-10-06 21:00:46,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-06 21:00:46,282 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-06 21:00:46,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:46,289 INFO L225 Difference]: With dead ends: 878 [2021-10-06 21:00:46,289 INFO L226 Difference]: Without dead ends: 878 [2021-10-06 21:00:46,289 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 7311.9ms TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-10-06 21:00:46,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2021-10-06 21:00:46,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 590. [2021-10-06 21:00:46,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 587 states have (on average 3.332197614991482) internal successors, (1956), 589 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:46,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 1956 transitions. [2021-10-06 21:00:46,314 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 1956 transitions. Word has length 26 [2021-10-06 21:00:46,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:46,314 INFO L470 AbstractCegarLoop]: Abstraction has 590 states and 1956 transitions. [2021-10-06 21:00:46,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:46,314 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 1956 transitions. [2021-10-06 21:00:46,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-06 21:00:46,315 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:46,316 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:46,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:46,531 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 [2021-10-06 21:00:46,531 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:46,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:46,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1006856166, now seen corresponding path program 1 times [2021-10-06 21:00:46,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:46,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125246445] [2021-10-06 21:00:46,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:46,534 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:46,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:46,535 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) [2021-10-06 21:00:46,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-06 21:00:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:46,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-06 21:00:46,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:46,970 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-06 21:00:47,209 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:47,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:47,938 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:47,938 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:47,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125246445] [2021-10-06 21:00:47,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125246445] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-06 21:00:47,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-06 21:00:47,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-06 21:00:47,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962499015] [2021-10-06 21:00:47,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-06 21:00:47,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:47,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-06 21:00:47,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-06 21:00:47,941 INFO L87 Difference]: Start difference. First operand 590 states and 1956 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) 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) [2021-10-06 21:00:48,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:48,985 INFO L93 Difference]: Finished difference Result 860 states and 2560 transitions. [2021-10-06 21:00:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-06 21:00:48,986 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) 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 26 [2021-10-06 21:00:48,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:48,991 INFO L225 Difference]: With dead ends: 860 [2021-10-06 21:00:48,991 INFO L226 Difference]: Without dead ends: 860 [2021-10-06 21:00:48,991 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 664.1ms TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-10-06 21:00:48,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2021-10-06 21:00:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 590. [2021-10-06 21:00:49,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 587 states have (on average 3.2402044293015333) internal successors, (1902), 589 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:49,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 1902 transitions. [2021-10-06 21:00:49,012 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 1902 transitions. Word has length 26 [2021-10-06 21:00:49,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:49,012 INFO L470 AbstractCegarLoop]: Abstraction has 590 states and 1902 transitions. [2021-10-06 21:00:49,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) 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) [2021-10-06 21:00:49,013 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 1902 transitions. [2021-10-06 21:00:49,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-06 21:00:49,014 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:49,021 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:49,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:49,236 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 [2021-10-06 21:00:49,237 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:00:49,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:49,237 INFO L82 PathProgramCache]: Analyzing trace with hash -488562440, now seen corresponding path program 1 times [2021-10-06 21:00:49,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:49,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999111640] [2021-10-06 21:00:49,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:49,238 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:49,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:49,239 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) [2021-10-06 21:00:49,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-06 21:00:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:49,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-06 21:00:49,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:50,313 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-10-06 21:00:50,313 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 28 case distinctions, treesize of input 209 treesize of output 117 [2021-10-06 21:00:50,321 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:00:50,321 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 117 treesize of output 109 [2021-10-06 21:00:50,333 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:00:50,334 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 109 treesize of output 101 [2021-10-06 21:00:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:00:50,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:50,574 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:00:50,575 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 399 treesize of output 399 [2021-10-06 21:00:50,631 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:00:50,631 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 399 treesize of output 399 [2021-10-06 21:01:03,756 WARN L207 SmtUtils]: Spent 6.73 s on a formula simplification. DAG size of input: 522 DAG size of output: 300 [2021-10-06 21:01:03,761 INFO L354 Elim1Store]: treesize reduction 987, result has 48.1 percent of original size [2021-10-06 21:01:03,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 165 treesize of output 966 [2021-10-06 21:01:08,053 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:01:08,053 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:01:08,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999111640] [2021-10-06 21:01:08,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999111640] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:01:08,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:01:08,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 16 [2021-10-06 21:01:08,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134527451] [2021-10-06 21:01:08,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-06 21:01:08,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:01:08,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-06 21:01:08,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-10-06 21:01:08,055 INFO L87 Difference]: Start difference. First operand 590 states and 1902 transitions. Second operand has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:01:10,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:01:10,648 INFO L93 Difference]: Finished difference Result 787 states and 2405 transitions. [2021-10-06 21:01:10,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-06 21:01:10,650 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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 27 [2021-10-06 21:01:10,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:01:10,656 INFO L225 Difference]: With dead ends: 787 [2021-10-06 21:01:10,656 INFO L226 Difference]: Without dead ends: 773 [2021-10-06 21:01:10,657 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1771.8ms TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2021-10-06 21:01:10,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2021-10-06 21:01:10,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 596. [2021-10-06 21:01:10,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 593 states have (on average 3.231028667790894) internal successors, (1916), 595 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:01:10,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 1916 transitions. [2021-10-06 21:01:10,676 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 1916 transitions. Word has length 27 [2021-10-06 21:01:10,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:01:10,676 INFO L470 AbstractCegarLoop]: Abstraction has 596 states and 1916 transitions. [2021-10-06 21:01:10,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:01:10,677 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 1916 transitions. [2021-10-06 21:01:10,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-06 21:01:10,678 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:01:10,678 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:01:10,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-06 21:01:10,893 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 [2021-10-06 21:01:10,893 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:01:10,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:01:10,894 INFO L82 PathProgramCache]: Analyzing trace with hash 292594738, now seen corresponding path program 2 times [2021-10-06 21:01:10,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:01:10,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485715437] [2021-10-06 21:01:10,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-06 21:01:10,896 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:01:10,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:01:10,897 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) [2021-10-06 21:01:10,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-06 21:01:11,285 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-06 21:01:11,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 21:01:11,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-06 21:01:11,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:01:11,912 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-10-06 21:01:11,912 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 28 case distinctions, treesize of input 209 treesize of output 117 [2021-10-06 21:01:11,920 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:01:11,920 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 117 treesize of output 109 [2021-10-06 21:01:11,928 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:01:11,929 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 109 treesize of output 101 [2021-10-06 21:01:11,997 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:01:11,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:01:12,189 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:01:12,189 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 399 treesize of output 399 [2021-10-06 21:01:12,230 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:01:12,231 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 399 treesize of output 399 [2021-10-06 21:01:25,559 WARN L207 SmtUtils]: Spent 6.35 s on a formula simplification. DAG size of input: 522 DAG size of output: 300 [2021-10-06 21:01:25,562 INFO L354 Elim1Store]: treesize reduction 987, result has 48.1 percent of original size [2021-10-06 21:01:25,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 165 treesize of output 966 [2021-10-06 21:01:31,674 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:01:31,675 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:01:31,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485715437] [2021-10-06 21:01:31,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485715437] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:01:31,675 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:01:31,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 16 [2021-10-06 21:01:31,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039910338] [2021-10-06 21:01:31,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-06 21:01:31,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:01:31,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-06 21:01:31,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-10-06 21:01:31,677 INFO L87 Difference]: Start difference. First operand 596 states and 1916 transitions. Second operand has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:01:34,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:01:34,300 INFO L93 Difference]: Finished difference Result 792 states and 2407 transitions. [2021-10-06 21:01:34,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-06 21:01:34,303 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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 27 [2021-10-06 21:01:34,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:01:34,309 INFO L225 Difference]: With dead ends: 792 [2021-10-06 21:01:34,310 INFO L226 Difference]: Without dead ends: 783 [2021-10-06 21:01:34,310 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 2071.2ms TimeCoverageRelationStatistics Valid=204, Invalid=608, Unknown=0, NotChecked=0, Total=812 [2021-10-06 21:01:34,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2021-10-06 21:01:34,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 598. [2021-10-06 21:01:34,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 595 states have (on average 3.2252100840336135) internal successors, (1919), 597 states have internal predecessors, (1919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:01:34,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1919 transitions. [2021-10-06 21:01:34,328 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1919 transitions. Word has length 27 [2021-10-06 21:01:34,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:01:34,328 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 1919 transitions. [2021-10-06 21:01:34,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:01:34,328 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1919 transitions. [2021-10-06 21:01:34,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-06 21:01:34,329 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:01:34,329 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:01:34,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-06 21:01:34,543 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 [2021-10-06 21:01:34,543 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:01:34,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:01:34,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1916848108, now seen corresponding path program 3 times [2021-10-06 21:01:34,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:01:34,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266777206] [2021-10-06 21:01:34,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-06 21:01:34,546 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:01:34,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:01:34,547 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) [2021-10-06 21:01:34,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-06 21:01:34,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-06 21:01:34,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 21:01:34,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-06 21:01:34,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:01:35,424 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-10-06 21:01:35,424 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 28 case distinctions, treesize of input 209 treesize of output 117 [2021-10-06 21:01:35,431 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:01:35,431 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 117 treesize of output 109 [2021-10-06 21:01:35,436 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:01:35,437 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 109 treesize of output 101 [2021-10-06 21:01:35,536 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:01:35,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:01:35,743 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:01:35,743 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 399 treesize of output 399 [2021-10-06 21:01:35,788 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:01:35,788 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 399 treesize of output 399 [2021-10-06 21:01:47,833 WARN L207 SmtUtils]: Spent 6.70 s on a formula simplification. DAG size of input: 522 DAG size of output: 300 [2021-10-06 21:01:47,836 INFO L354 Elim1Store]: treesize reduction 987, result has 48.1 percent of original size [2021-10-06 21:01:47,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 165 treesize of output 966 [2021-10-06 21:02:49,259 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:02:49,259 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:02:49,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266777206] [2021-10-06 21:02:49,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266777206] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:02:49,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:02:49,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 16 [2021-10-06 21:02:49,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850178513] [2021-10-06 21:02:49,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-06 21:02:49,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:02:49,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-06 21:02:49,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-10-06 21:02:49,261 INFO L87 Difference]: Start difference. First operand 598 states and 1919 transitions. Second operand has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:02:53,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:02:53,635 INFO L93 Difference]: Finished difference Result 782 states and 2393 transitions. [2021-10-06 21:02:53,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-06 21:02:53,637 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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 27 [2021-10-06 21:02:53,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:02:53,642 INFO L225 Difference]: With dead ends: 782 [2021-10-06 21:02:53,642 INFO L226 Difference]: Without dead ends: 770 [2021-10-06 21:02:53,643 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1687.9ms TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2021-10-06 21:02:53,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2021-10-06 21:02:53,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 593. [2021-10-06 21:02:53,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 590 states have (on average 3.2355932203389832) internal successors, (1909), 592 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:02:53,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1909 transitions. [2021-10-06 21:02:53,662 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1909 transitions. Word has length 27 [2021-10-06 21:02:53,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:02:53,677 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 1909 transitions. [2021-10-06 21:02:53,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:02:53,677 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1909 transitions. [2021-10-06 21:02:53,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-06 21:02:53,678 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:02:53,679 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:02:53,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-06 21:02:53,894 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 [2021-10-06 21:02:53,894 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:02:53,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:02:53,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1685167536, now seen corresponding path program 4 times [2021-10-06 21:02:53,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:02:53,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360062522] [2021-10-06 21:02:53,897 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-06 21:02:53,898 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:02:53,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:02:53,899 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) [2021-10-06 21:02:53,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-06 21:02:54,462 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-06 21:02:54,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 21:02:54,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-06 21:02:54,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:02:55,078 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-10-06 21:02:55,078 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 28 case distinctions, treesize of input 209 treesize of output 117 [2021-10-06 21:02:55,086 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:02:55,087 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 117 treesize of output 109 [2021-10-06 21:02:55,093 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:02:55,093 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 109 treesize of output 101 [2021-10-06 21:02:55,168 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:02:55,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:02:55,351 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:02:55,351 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 399 treesize of output 399 [2021-10-06 21:02:55,405 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:02:55,405 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 399 treesize of output 399 [2021-10-06 21:03:08,718 WARN L207 SmtUtils]: Spent 6.08 s on a formula simplification. DAG size of input: 522 DAG size of output: 300 [2021-10-06 21:03:08,720 INFO L354 Elim1Store]: treesize reduction 987, result has 48.1 percent of original size [2021-10-06 21:03:08,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 165 treesize of output 966 [2021-10-06 21:03:31,576 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:03:31,577 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:03:31,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360062522] [2021-10-06 21:03:31,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360062522] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:03:31,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:03:31,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 16 [2021-10-06 21:03:31,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139141323] [2021-10-06 21:03:31,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-06 21:03:31,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:03:31,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-06 21:03:31,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-10-06 21:03:31,579 INFO L87 Difference]: Start difference. First operand 593 states and 1909 transitions. Second operand has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:03:34,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:03:34,289 INFO L93 Difference]: Finished difference Result 756 states and 2323 transitions. [2021-10-06 21:03:34,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-06 21:03:34,291 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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 27 [2021-10-06 21:03:34,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:03:34,295 INFO L225 Difference]: With dead ends: 756 [2021-10-06 21:03:34,295 INFO L226 Difference]: Without dead ends: 747 [2021-10-06 21:03:34,296 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1925.6ms TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2021-10-06 21:03:34,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2021-10-06 21:03:34,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 597. [2021-10-06 21:03:34,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 594 states have (on average 3.234006734006734) internal successors, (1921), 596 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:03:34,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 1921 transitions. [2021-10-06 21:03:34,314 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 1921 transitions. Word has length 27 [2021-10-06 21:03:34,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:03:34,314 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 1921 transitions. [2021-10-06 21:03:34,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:03:34,315 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 1921 transitions. [2021-10-06 21:03:34,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-06 21:03:34,316 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:03:34,316 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:03:34,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-06 21:03:34,531 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 [2021-10-06 21:03:34,532 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:03:34,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:03:34,532 INFO L82 PathProgramCache]: Analyzing trace with hash -985546390, now seen corresponding path program 5 times [2021-10-06 21:03:34,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:03:34,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978043632] [2021-10-06 21:03:34,534 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-06 21:03:34,534 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:03:34,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:03:34,535 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) [2021-10-06 21:03:34,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-06 21:03:35,331 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-06 21:03:35,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 21:03:35,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-06 21:03:35,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:03:35,808 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-10-06 21:03:35,809 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 28 case distinctions, treesize of input 209 treesize of output 117 [2021-10-06 21:03:35,817 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:03:35,817 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 117 treesize of output 109 [2021-10-06 21:03:35,824 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:03:35,825 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 109 treesize of output 101 [2021-10-06 21:03:35,932 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:03:35,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:03:36,122 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:03:36,122 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 399 treesize of output 399 [2021-10-06 21:03:36,179 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:03:36,179 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 399 treesize of output 399 [2021-10-06 21:03:48,327 WARN L207 SmtUtils]: Spent 6.36 s on a formula simplification. DAG size of input: 522 DAG size of output: 300 [2021-10-06 21:03:48,330 INFO L354 Elim1Store]: treesize reduction 987, result has 48.1 percent of original size [2021-10-06 21:03:48,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 165 treesize of output 966 [2021-10-06 21:03:52,937 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:03:52,937 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:03:52,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978043632] [2021-10-06 21:03:52,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978043632] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:03:52,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:03:52,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 16 [2021-10-06 21:03:52,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377208324] [2021-10-06 21:03:52,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-06 21:03:52,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:03:52,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-06 21:03:52,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-10-06 21:03:52,939 INFO L87 Difference]: Start difference. First operand 597 states and 1921 transitions. Second operand has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:03:55,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:03:55,121 INFO L93 Difference]: Finished difference Result 754 states and 2317 transitions. [2021-10-06 21:03:55,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-06 21:03:55,123 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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 27 [2021-10-06 21:03:55,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:03:55,126 INFO L225 Difference]: With dead ends: 754 [2021-10-06 21:03:55,126 INFO L226 Difference]: Without dead ends: 745 [2021-10-06 21:03:55,126 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1664.3ms TimeCoverageRelationStatistics Valid=198, Invalid=614, Unknown=0, NotChecked=0, Total=812 [2021-10-06 21:03:55,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2021-10-06 21:03:55,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 595. [2021-10-06 21:03:55,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 592 states have (on average 3.2364864864864864) internal successors, (1916), 594 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:03:55,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 1916 transitions. [2021-10-06 21:03:55,144 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 1916 transitions. Word has length 27 [2021-10-06 21:03:55,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:03:55,144 INFO L470 AbstractCegarLoop]: Abstraction has 595 states and 1916 transitions. [2021-10-06 21:03:55,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:03:55,144 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 1916 transitions. [2021-10-06 21:03:55,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-06 21:03:55,145 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:03:55,146 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:03:55,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-06 21:03:55,359 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 [2021-10-06 21:03:55,360 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:03:55,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:03:55,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1588698616, now seen corresponding path program 6 times [2021-10-06 21:03:55,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:03:55,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195379331] [2021-10-06 21:03:55,362 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-06 21:03:55,362 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:03:55,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:03:55,363 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) [2021-10-06 21:03:55,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-06 21:03:55,878 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-06 21:03:55,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 21:03:55,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-06 21:03:55,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:03:56,209 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:03:56,210 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 227 treesize of output 219 [2021-10-06 21:03:56,220 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:03:56,221 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 219 treesize of output 211 [2021-10-06 21:03:56,409 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-10-06 21:03:56,410 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 28 case distinctions, treesize of input 153 treesize of output 61 [2021-10-06 21:03:56,497 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:03:56,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:03:56,823 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:03:56,824 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 446 treesize of output 446 [2021-10-06 21:03:56,878 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:03:56,879 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 446 treesize of output 446 [2021-10-06 21:04:06,599 WARN L207 SmtUtils]: Spent 6.83 s on a formula simplification. DAG size of input: 522 DAG size of output: 300 [2021-10-06 21:04:06,602 INFO L354 Elim1Store]: treesize reduction 987, result has 48.1 percent of original size [2021-10-06 21:04:06,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 165 treesize of output 966 [2021-10-06 21:05:20,312 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:05:20,312 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:05:20,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195379331] [2021-10-06 21:05:20,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195379331] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:05:20,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:05:20,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 16 [2021-10-06 21:05:20,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093514800] [2021-10-06 21:05:20,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-06 21:05:20,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:05:20,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-06 21:05:20,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-10-06 21:05:20,314 INFO L87 Difference]: Start difference. First operand 595 states and 1916 transitions. Second operand has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:05:22,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:05:22,255 INFO L93 Difference]: Finished difference Result 804 states and 2497 transitions. [2021-10-06 21:05:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-06 21:05:22,256 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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 27 [2021-10-06 21:05:22,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:05:22,259 INFO L225 Difference]: With dead ends: 804 [2021-10-06 21:05:22,259 INFO L226 Difference]: Without dead ends: 797 [2021-10-06 21:05:22,260 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1308.7ms TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2021-10-06 21:05:22,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2021-10-06 21:05:22,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 597. [2021-10-06 21:05:22,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 594 states have (on average 3.2306397306397305) internal successors, (1919), 596 states have internal predecessors, (1919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:05:22,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 1919 transitions. [2021-10-06 21:05:22,276 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 1919 transitions. Word has length 27 [2021-10-06 21:05:22,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:05:22,277 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 1919 transitions. [2021-10-06 21:05:22,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:05:22,277 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 1919 transitions. [2021-10-06 21:05:22,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-06 21:05:22,278 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:05:22,278 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:05:22,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-10-06 21:05:22,492 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 [2021-10-06 21:05:22,492 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:05:22,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:05:22,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1394778120, now seen corresponding path program 7 times [2021-10-06 21:05:22,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:05:22,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728377202] [2021-10-06 21:05:22,495 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-06 21:05:22,495 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:05:22,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:05:22,496 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) [2021-10-06 21:05:22,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-10-06 21:05:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:05:23,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-06 21:05:23,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:05:23,657 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-10-06 21:05:23,657 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 28 case distinctions, treesize of input 209 treesize of output 117 [2021-10-06 21:05:23,665 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:05:23,666 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 117 treesize of output 109 [2021-10-06 21:05:23,673 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:05:23,674 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 109 treesize of output 101 [2021-10-06 21:05:23,745 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:05:23,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:05:23,899 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:05:23,900 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 399 treesize of output 399 [2021-10-06 21:05:23,949 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:05:23,949 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 399 treesize of output 399 [2021-10-06 21:05:39,517 WARN L207 SmtUtils]: Spent 9.20 s on a formula simplification. DAG size of input: 526 DAG size of output: 304 [2021-10-06 21:05:39,520 INFO L354 Elim1Store]: treesize reduction 1245, result has 45.7 percent of original size [2021-10-06 21:05:39,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 208 treesize of output 1115 [2021-10-06 21:06:58,749 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:06:58,749 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:06:58,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728377202] [2021-10-06 21:06:58,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728377202] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:06:58,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:06:58,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 16 [2021-10-06 21:06:58,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428428916] [2021-10-06 21:06:58,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-06 21:06:58,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:06:58,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-06 21:06:58,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-10-06 21:06:58,751 INFO L87 Difference]: Start difference. First operand 597 states and 1919 transitions. Second operand has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:07:03,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:07:03,152 INFO L93 Difference]: Finished difference Result 746 states and 2260 transitions. [2021-10-06 21:07:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-06 21:07:03,153 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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 27 [2021-10-06 21:07:03,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:07:03,156 INFO L225 Difference]: With dead ends: 746 [2021-10-06 21:07:03,156 INFO L226 Difference]: Without dead ends: 737 [2021-10-06 21:07:03,156 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1853.4ms TimeCoverageRelationStatistics Valid=213, Invalid=599, Unknown=0, NotChecked=0, Total=812 [2021-10-06 21:07:03,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-10-06 21:07:03,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 603. [2021-10-06 21:07:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 600 states have (on average 3.23) internal successors, (1938), 602 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:07:03,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 1938 transitions. [2021-10-06 21:07:03,174 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 1938 transitions. Word has length 27 [2021-10-06 21:07:03,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:07:03,174 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 1938 transitions. [2021-10-06 21:07:03,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:07:03,175 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 1938 transitions. [2021-10-06 21:07:03,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-06 21:07:03,176 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:07:03,176 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:07:03,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-10-06 21:07:03,390 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 [2021-10-06 21:07:03,391 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:07:03,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:07:03,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1275935806, now seen corresponding path program 8 times [2021-10-06 21:07:03,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:07:03,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87464132] [2021-10-06 21:07:03,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-06 21:07:03,393 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:07:03,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:07:03,394 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) [2021-10-06 21:07:03,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-06 21:07:03,952 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-06 21:07:03,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 21:07:03,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-06 21:07:03,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:07:04,359 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-10-06 21:07:04,359 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 28 case distinctions, treesize of input 209 treesize of output 117 [2021-10-06 21:07:04,366 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:07:04,367 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 117 treesize of output 109 [2021-10-06 21:07:04,372 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:07:04,373 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 109 treesize of output 101 [2021-10-06 21:07:04,470 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:07:04,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:07:04,633 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:07:04,633 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 399 treesize of output 399 [2021-10-06 21:07:04,677 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:07:04,677 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 399 treesize of output 399 [2021-10-06 21:07:18,742 WARN L207 SmtUtils]: Spent 9.23 s on a formula simplification. DAG size of input: 526 DAG size of output: 304 [2021-10-06 21:07:18,745 INFO L354 Elim1Store]: treesize reduction 1245, result has 45.7 percent of original size [2021-10-06 21:07:18,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 208 treesize of output 1115 [2021-10-06 21:07:25,477 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:07:25,477 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:07:25,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87464132] [2021-10-06 21:07:25,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87464132] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:07:25,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:07:25,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 16 [2021-10-06 21:07:25,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258634632] [2021-10-06 21:07:25,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-06 21:07:25,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:07:25,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-06 21:07:25,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-10-06 21:07:25,479 INFO L87 Difference]: Start difference. First operand 603 states and 1938 transitions. Second operand has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:07:27,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:07:27,384 INFO L93 Difference]: Finished difference Result 744 states and 2254 transitions. [2021-10-06 21:07:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-06 21:07:27,385 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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 27 [2021-10-06 21:07:27,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:07:27,389 INFO L225 Difference]: With dead ends: 744 [2021-10-06 21:07:27,389 INFO L226 Difference]: Without dead ends: 735 [2021-10-06 21:07:27,389 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1488.0ms TimeCoverageRelationStatistics Valid=212, Invalid=600, Unknown=0, NotChecked=0, Total=812 [2021-10-06 21:07:27,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-10-06 21:07:27,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 601. [2021-10-06 21:07:27,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 598 states have (on average 3.2324414715719065) internal successors, (1933), 600 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:07:27,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1933 transitions. [2021-10-06 21:07:27,409 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1933 transitions. Word has length 27 [2021-10-06 21:07:27,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:07:27,409 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 1933 transitions. [2021-10-06 21:07:27,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:07:27,410 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1933 transitions. [2021-10-06 21:07:27,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-06 21:07:27,411 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:07:27,411 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:07:27,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-10-06 21:07:27,623 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 [2021-10-06 21:07:27,624 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:07:27,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:07:27,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1298309200, now seen corresponding path program 9 times [2021-10-06 21:07:27,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:07:27,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835676906] [2021-10-06 21:07:27,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-06 21:07:27,626 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:07:27,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:07:27,627 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) [2021-10-06 21:07:27,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-06 21:07:28,209 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-06 21:07:28,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 21:07:28,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-06 21:07:28,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:07:28,531 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:07:28,532 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 227 treesize of output 219 [2021-10-06 21:07:28,545 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:07:28,545 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 219 treesize of output 211 [2021-10-06 21:07:28,750 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-10-06 21:07:28,751 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 28 case distinctions, treesize of input 153 treesize of output 61 [2021-10-06 21:07:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:07:28,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:07:29,132 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:07:29,133 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 446 treesize of output 446 [2021-10-06 21:07:29,173 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:07:29,173 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 446 treesize of output 446 [2021-10-06 21:07:39,601 WARN L207 SmtUtils]: Spent 8.27 s on a formula simplification. DAG size of input: 526 DAG size of output: 304 [2021-10-06 21:07:39,605 INFO L354 Elim1Store]: treesize reduction 1245, result has 45.7 percent of original size [2021-10-06 21:07:39,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 208 treesize of output 1115 [2021-10-06 21:10:05,430 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:10:05,431 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:10:05,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835676906] [2021-10-06 21:10:05,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835676906] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:10:05,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:10:05,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 16 [2021-10-06 21:10:05,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893180947] [2021-10-06 21:10:05,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-06 21:10:05,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:10:05,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-06 21:10:05,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-10-06 21:10:05,433 INFO L87 Difference]: Start difference. First operand 601 states and 1933 transitions. Second operand has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:10:07,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:10:07,338 INFO L93 Difference]: Finished difference Result 800 states and 2445 transitions. [2021-10-06 21:10:07,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-06 21:10:07,340 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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 27 [2021-10-06 21:10:07,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:10:07,343 INFO L225 Difference]: With dead ends: 800 [2021-10-06 21:10:07,343 INFO L226 Difference]: Without dead ends: 793 [2021-10-06 21:10:07,344 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1347.4ms TimeCoverageRelationStatistics Valid=224, Invalid=646, Unknown=0, NotChecked=0, Total=870 [2021-10-06 21:10:07,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2021-10-06 21:10:07,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 599. [2021-10-06 21:10:07,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 596 states have (on average 3.2315436241610738) internal successors, (1926), 598 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:10:07,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1926 transitions. [2021-10-06 21:10:07,362 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1926 transitions. Word has length 27 [2021-10-06 21:10:07,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:10:07,362 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 1926 transitions. [2021-10-06 21:10:07,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) [2021-10-06 21:10:07,363 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1926 transitions. [2021-10-06 21:10:07,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-06 21:10:07,364 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:10:07,364 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:10:07,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-10-06 21:10:07,577 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 [2021-10-06 21:10:07,577 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-06 21:10:07,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:10:07,578 INFO L82 PathProgramCache]: Analyzing trace with hash 524080108, now seen corresponding path program 10 times [2021-10-06 21:10:07,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:10:07,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360338667] [2021-10-06 21:10:07,579 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-06 21:10:07,580 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:10:07,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:10:07,580 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) [2021-10-06 21:10:07,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-10-06 21:10:08,288 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-06 21:10:08,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 21:10:08,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-06 21:10:08,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:10:08,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-06 21:10:08,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-06 21:10:08,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-06 21:10:08,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-06 21:10:08,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-06 21:10:08,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-10-06 21:10:08,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-06 21:10:08,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-06 21:10:08,886 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-10-06 21:10:08,886 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 28 case distinctions, treesize of input 153 treesize of output 61 [2021-10-06 21:10:08,973 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:10:08,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:10:19,511 WARN L207 SmtUtils]: Spent 10.10 s on a formula simplification. DAG size of input: 526 DAG size of output: 304 [2021-10-06 21:10:19,514 INFO L354 Elim1Store]: treesize reduction 1245, result has 45.7 percent of original size [2021-10-06 21:10:19,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 487 treesize of output 1324 [2021-10-06 21:10:19,620 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:10:19,621 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 1324 treesize of output 1324 [2021-10-06 21:10:19,758 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-06 21:10:19,759 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 1324 treesize of output 1324 [2021-10-06 21:12:41,954 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-06 21:12:41,954 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:12:41,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360338667] [2021-10-06 21:12:41,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360338667] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:12:41,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:12:41,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 16 [2021-10-06 21:12:41,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364575342] [2021-10-06 21:12:41,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-06 21:12:41,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:12:41,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-06 21:12:41,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-10-06 21:12:41,957 INFO L87 Difference]: Start difference. First operand 599 states and 1926 transitions. Second operand has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 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) Received shutdown request... [2021-10-06 21:12:44,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-06 21:12:44,626 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-06 21:12:44,629 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 [2021-10-06 21:12:44,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-10-06 21:12:44,646 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-06 21:12:44,827 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 [2021-10-06 21:12:44,830 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). [2021-10-06 21:12:44,832 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0REQUIRES_VIOLATION [2021-10-06 21:12:44,832 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1REQUIRES_VIOLATION [2021-10-06 21:12:44,832 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2REQUIRES_VIOLATION [2021-10-06 21:12:44,832 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3REQUIRES_VIOLATION [2021-10-06 21:12:44,832 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4REQUIRES_VIOLATION [2021-10-06 21:12:44,832 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5REQUIRES_VIOLATION [2021-10-06 21:12:44,832 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6REQUIRES_VIOLATION [2021-10-06 21:12:44,832 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7REQUIRES_VIOLATION [2021-10-06 21:12:44,833 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0REQUIRES_VIOLATION [2021-10-06 21:12:44,833 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1REQUIRES_VIOLATION [2021-10-06 21:12:44,833 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2REQUIRES_VIOLATION [2021-10-06 21:12:44,833 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3REQUIRES_VIOLATION [2021-10-06 21:12:44,833 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4REQUIRES_VIOLATION [2021-10-06 21:12:44,833 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5REQUIRES_VIOLATION [2021-10-06 21:12:44,833 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6REQUIRES_VIOLATION [2021-10-06 21:12:44,833 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7REQUIRES_VIOLATION [2021-10-06 21:12:44,833 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-06 21:12:44,833 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-06 21:12:44,834 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-06 21:12:44,834 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-06 21:12:44,834 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-06 21:12:44,834 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-06 21:12:44,834 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-06 21:12:44,834 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-06 21:12:44,834 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-06 21:12:44,834 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-06 21:12:44,835 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-06 21:12:44,835 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-06 21:12:44,835 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-06 21:12:44,835 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-06 21:12:44,835 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-06 21:12:44,835 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0REQUIRES_VIOLATION [2021-10-06 21:12:44,835 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1REQUIRES_VIOLATION [2021-10-06 21:12:44,836 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2REQUIRES_VIOLATION [2021-10-06 21:12:44,836 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3REQUIRES_VIOLATION [2021-10-06 21:12:44,836 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4REQUIRES_VIOLATION [2021-10-06 21:12:44,836 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5REQUIRES_VIOLATION [2021-10-06 21:12:44,836 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6REQUIRES_VIOLATION [2021-10-06 21:12:44,836 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7REQUIRES_VIOLATION [2021-10-06 21:12:44,837 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0REQUIRES_VIOLATION [2021-10-06 21:12:44,837 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1REQUIRES_VIOLATION [2021-10-06 21:12:44,837 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2REQUIRES_VIOLATION [2021-10-06 21:12:44,837 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3REQUIRES_VIOLATION [2021-10-06 21:12:44,837 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4REQUIRES_VIOLATION [2021-10-06 21:12:44,837 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5REQUIRES_VIOLATION [2021-10-06 21:12:44,837 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6REQUIRES_VIOLATION [2021-10-06 21:12:44,837 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7REQUIRES_VIOLATION [2021-10-06 21:12:44,844 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-06 21:12:44,844 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-06 21:12:44,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 09:12:44 BasicIcfg [2021-10-06 21:12:44,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-06 21:12:44,847 INFO L168 Benchmark]: Toolchain (without parser) took 835844.41 ms. Allocated memory was 162.5 MB in the beginning and 206.6 MB in the end (delta: 44.0 MB). Free memory was 137.7 MB in the beginning and 116.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 67.1 MB. Max. memory is 8.0 GB. [2021-10-06 21:12:44,847 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 162.5 MB. Free memory was 133.5 MB in the beginning and 133.4 MB in the end (delta: 102.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 21:12:44,847 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.44 ms. Allocated memory is still 162.5 MB. Free memory was 137.5 MB in the beginning and 124.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-06 21:12:44,848 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.24 ms. Allocated memory is still 162.5 MB. Free memory was 124.5 MB in the beginning and 122.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 21:12:44,848 INFO L168 Benchmark]: Boogie Preprocessor took 41.32 ms. Allocated memory is still 162.5 MB. Free memory was 122.5 MB in the beginning and 120.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 21:12:44,848 INFO L168 Benchmark]: RCFGBuilder took 945.72 ms. Allocated memory is still 162.5 MB. Free memory was 120.7 MB in the beginning and 132.6 MB in the end (delta: -11.8 MB). Peak memory consumption was 13.5 MB. Max. memory is 8.0 GB. [2021-10-06 21:12:44,849 INFO L168 Benchmark]: TraceAbstraction took 834416.94 ms. Allocated memory was 162.5 MB in the beginning and 206.6 MB in the end (delta: 44.0 MB). Free memory was 132.1 MB in the beginning and 116.2 MB in the end (delta: 15.8 MB). Peak memory consumption was 59.9 MB. Max. memory is 8.0 GB. [2021-10-06 21:12:44,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 162.5 MB. Free memory was 133.5 MB in the beginning and 133.4 MB in the end (delta: 102.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 355.44 ms. Allocated memory is still 162.5 MB. Free memory was 137.5 MB in the beginning and 124.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 72.24 ms. Allocated memory is still 162.5 MB. Free memory was 124.5 MB in the beginning and 122.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.32 ms. Allocated memory is still 162.5 MB. Free memory was 122.5 MB in the beginning and 120.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 945.72 ms. Allocated memory is still 162.5 MB. Free memory was 120.7 MB in the beginning and 132.6 MB in the end (delta: -11.8 MB). Peak memory consumption was 13.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 834416.94 ms. Allocated memory was 162.5 MB in the beginning and 206.6 MB in the end (delta: 44.0 MB). Free memory was 132.1 MB in the beginning and 116.2 MB in the end (delta: 15.8 MB). Peak memory consumption was 59.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38216.3ms, 199 PlacesBefore, 58 PlacesAfterwards, 211 TransitionsBefore, 57 TransitionsAfterwards, 6120 CoEnabledTransitionPairs, 6 FixpointIterations, 94 TrivialSequentialCompositions, 98 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 17 ConcurrentYvCompositions, 13 ChoiceCompositions, 231 TotalNumberOfCompositions, 8699 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6872, positive: 6763, positive conditional: 0, positive unconditional: 6763, negative: 109, negative conditional: 0, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4082, positive: 4052, positive conditional: 0, positive unconditional: 4052, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4082, positive: 4052, positive conditional: 0, positive unconditional: 4052, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1927, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1927, negative conditional: 0, negative unconditional: 1927, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6872, positive: 2711, positive conditional: 0, positive unconditional: 2711, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 4082, unknown conditional: 0, unknown unconditional: 4082] , Statistics on independence cache: Total cache size (in pairs): 211, Positive cache size: 200, Positive conditional cache size: 0, Positive unconditional cache size: 200, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - 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: 86]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (599states) and FLOYD_HOARE automaton (currently 16 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 275 locations, 48 error locations. Started 1 CEGAR loops. OverallTime: 834187.4ms, OverallIterations: 34, TraceHistogramMax: 5, EmptinessCheckTime: 45.7ms, AutomataDifference: 46544.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 38333.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 752 SDtfs, 6194 SDslu, 2021 SDs, 0 SdLazy, 5896 SolverSat, 728 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 33750.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1424 GetRequests, 965 SyntacticMatches, 4 SemanticMatches, 455 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1455 ImplicationChecksByTransitivity, 47756.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=777occurred in iteration=0, InterpolantAutomatonStates: 263, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 663.7ms AutomataMinimizationTime, 33 MinimizatonAttempts, 6212 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 437.2ms SsaConstructionTime, 4855.5ms SatisfiabilityAnalysisTime, 729242.0ms InterpolantComputationTime, 656 NumberOfCodeBlocks, 586 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 1244 ConstructedInterpolants, 204 QuantifiedInterpolants, 23996 SizeOfPredicates, 435 NumberOfNonLiveVariables, 4457 ConjunctsInSsa, 382 ConjunctsInUnsatCore, 68 InterpolantComputations, 54 PerfectInterpolantSequences, 1750/1856 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