/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-word-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 15:38:28,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 15:38:28,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 15:38:28,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-07 15:38:28,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-07 15:38:28,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-07 15:38:28,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-07 15:38:28,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-07 15:38:28,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-07 15:38:28,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-07 15:38:28,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-07 15:38:28,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-07 15:38:28,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-07 15:38:28,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-07 15:38:28,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-07 15:38:28,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-07 15:38:28,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-07 15:38:28,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 15:38:28,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 15:38:28,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 15:38:28,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-07 15:38:28,856 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 15:38:28,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 15:38:28,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 15:38:28,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 15:38:28,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 15:38:28,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 15:38:28,858 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 15:38:28,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 15:38:28,859 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 15:38:28,859 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 15:38:28,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 15:38:28,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 15:38:28,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 15:38:28,860 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-07 15:38:28,860 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-07 15:38:28,860 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-07 15:38:28,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 15:38:28,860 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-07 15:38:28,861 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-07 15:38:28,861 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-07 15:38:28,861 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 15:38:28,861 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 15:38:28,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 15:38:28,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 15:38:28,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 15:38:28,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:38:28,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 15:38:28,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 15:38:28,862 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-07 15:38:28,863 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-07 15:38:28,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 15:38:28,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-07 15:38:28,863 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 15:38:29,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 15:38:29,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 15:38:29,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 15:38:29,232 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 15:38:29,232 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 15:38:29,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2021-10-07 15:38:29,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d84094cbe/112da32de5864cc682927c74ce17232f/FLAGe2625bd68 [2021-10-07 15:38:29,930 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 15:38:29,931 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2021-10-07 15:38:29,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d84094cbe/112da32de5864cc682927c74ce17232f/FLAGe2625bd68 [2021-10-07 15:38:30,225 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d84094cbe/112da32de5864cc682927c74ce17232f [2021-10-07 15:38:30,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 15:38:30,243 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-07 15:38:30,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 15:38:30,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 15:38:30,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 15:38:30,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:38:30" (1/1) ... [2021-10-07 15:38:30,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327ab61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:30, skipping insertion in model container [2021-10-07 15:38:30,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:38:30" (1/1) ... [2021-10-07 15:38:30,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 15:38:30,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:38:30,548 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-word-symm.wvr.c[2844,2857] [2021-10-07 15:38:30,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:38:30,590 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-07 15:38:30,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:38:30,649 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-word-symm.wvr.c[2844,2857] [2021-10-07 15:38:30,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:38:30,669 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 15:38:30,724 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-word-symm.wvr.c[2844,2857] [2021-10-07 15:38:30,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:38:30,760 INFO L208 MainTranslator]: Completed translation [2021-10-07 15:38:30,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:30 WrapperNode [2021-10-07 15:38:30,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 15:38:30,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 15:38:30,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 15:38:30,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 15:38:30,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:30" (1/1) ... [2021-10-07 15:38:30,796 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:30" (1/1) ... [2021-10-07 15:38:30,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 15:38:30,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 15:38:30,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 15:38:30,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 15:38:30,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:30" (1/1) ... [2021-10-07 15:38:30,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:30" (1/1) ... [2021-10-07 15:38:30,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:30" (1/1) ... [2021-10-07 15:38:30,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:30" (1/1) ... [2021-10-07 15:38:30,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:30" (1/1) ... [2021-10-07 15:38:30,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:30" (1/1) ... [2021-10-07 15:38:30,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:30" (1/1) ... [2021-10-07 15:38:30,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 15:38:30,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 15:38:30,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 15:38:30,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 15:38:30,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:30" (1/1) ... [2021-10-07 15:38:30,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:38:30,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:38:30,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-07 15:38:31,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-07 15:38:31,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 15:38:31,043 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 15:38:31,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 15:38:31,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 15:38:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-07 15:38:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 15:38:31,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-07 15:38:31,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-07 15:38:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 15:38:31,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 15:38:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 15:38:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-07 15:38:31,049 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 15:38:31,863 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 15:38:31,863 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-07 15:38:31,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:38:31 BoogieIcfgContainer [2021-10-07 15:38:31,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 15:38:31,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 15:38:31,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 15:38:31,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 15:38:31,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:38:30" (1/3) ... [2021-10-07 15:38:31,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15cc75e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:38:31, skipping insertion in model container [2021-10-07 15:38:31,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:30" (2/3) ... [2021-10-07 15:38:31,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15cc75e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:38:31, skipping insertion in model container [2021-10-07 15:38:31,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:38:31" (3/3) ... [2021-10-07 15:38:31,878 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-word-symm.wvr.c [2021-10-07 15:38:31,888 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 15:38:31,888 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-10-07 15:38:31,889 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 15:38:31,960 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,960 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,960 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,961 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,961 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,962 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,963 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,963 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,963 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,963 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,964 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,964 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,964 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,964 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,965 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,965 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,965 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,966 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,966 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,966 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,967 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,967 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,967 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,967 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,968 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,969 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,969 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,969 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,969 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,970 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,970 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,972 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,972 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,972 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,972 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,975 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,975 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,975 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,975 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,976 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,976 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,976 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,976 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,977 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,977 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,977 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,978 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,978 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,979 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,979 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,980 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,981 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,981 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,981 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,982 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,982 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,982 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,982 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,983 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,983 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,983 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,983 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,984 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,984 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,984 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,984 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,986 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,986 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,986 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,987 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,988 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,988 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,992 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,998 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,999 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,999 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,999 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:31,999 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,000 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,001 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,001 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,001 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,002 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,003 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,003 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,003 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,003 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,003 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,004 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,004 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,004 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,004 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,004 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,005 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,005 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,005 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,006 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,006 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,006 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,006 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,007 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,007 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,007 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,007 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,007 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,007 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,008 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,008 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,008 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,008 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,008 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,009 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,009 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,009 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,009 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,009 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,009 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,010 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,010 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,010 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,010 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,010 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,010 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,011 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,011 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,011 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,011 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,011 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,011 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,012 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,012 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,012 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,012 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,012 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,013 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,013 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,014 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,016 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,016 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,016 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,017 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,017 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,017 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,017 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,017 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,018 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,018 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,018 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,018 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,018 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,018 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,019 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,019 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,019 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,019 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,019 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,019 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,020 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,020 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,020 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,020 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,020 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,020 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,021 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,021 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,021 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,021 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,021 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,021 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,021 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,025 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,025 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,025 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,026 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,026 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,026 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,026 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,026 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,026 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,027 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,027 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,032 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,032 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,032 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,033 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,033 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,033 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,033 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,033 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,033 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,034 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,034 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:32,041 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-07 15:38:32,089 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 15:38:32,096 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-07 15:38:32,097 INFO L340 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2021-10-07 15:38:32,116 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 15:38:32,128 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 232 places, 250 transitions, 516 flow [2021-10-07 15:38:32,132 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 232 places, 250 transitions, 516 flow [2021-10-07 15:38:32,134 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 232 places, 250 transitions, 516 flow [2021-10-07 15:38:32,268 INFO L129 PetriNetUnfolder]: 25/248 cut-off events. [2021-10-07 15:38:32,269 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-07 15:38:32,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 248 events. 25/248 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 490 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 159. Up to 3 conditions per place. [2021-10-07 15:38:32,290 INFO L116 LiptonReduction]: Number of co-enabled transitions 6816 [2021-10-07 15:39:10,946 INFO L131 LiptonReduction]: Checked pairs total: 10378 [2021-10-07 15:39:10,946 INFO L133 LiptonReduction]: Total number of compositions: 299 [2021-10-07 15:39:10,956 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 57 transitions, 130 flow [2021-10-07 15:39:11,005 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 729 states, 443 states have (on average 4.6613995485327315) internal successors, (2065), 728 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:39:11,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 729 states, 443 states have (on average 4.6613995485327315) internal successors, (2065), 728 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:39:11,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 15:39:11,016 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:39:11,016 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 15:39:11,017 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-07 15:39:11,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:39:11,022 INFO L82 PathProgramCache]: Analyzing trace with hash 32805, now seen corresponding path program 1 times [2021-10-07 15:39:11,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:39:11,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904642438] [2021-10-07 15:39:11,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:39:11,036 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:39:11,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:39:11,043 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:39:11,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-07 15:39:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:39:11,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-07 15:39:11,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:39:11,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 15:39:11,471 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-07 15:39:11,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 [2021-10-07 15:39:11,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:39:11,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:39:11,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:39:11,662 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:39:11,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904642438] [2021-10-07 15:39:11,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904642438] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:39:11,664 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:39:11,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:39:11,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30484657] [2021-10-07 15:39:11,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:39:11,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:39:11,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:39:11,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:39:11,691 INFO L87 Difference]: Start difference. First operand has 729 states, 443 states have (on average 4.6613995485327315) internal successors, (2065), 728 states have internal predecessors, (2065), 0 states have call successors, (0), 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) [2021-10-07 15:39:12,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:39:12,621 INFO L93 Difference]: Finished difference Result 977 states and 2773 transitions. [2021-10-07 15:39:12,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:39:12,626 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 [2021-10-07 15:39:12,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:39:12,661 INFO L225 Difference]: With dead ends: 977 [2021-10-07 15:39:12,662 INFO L226 Difference]: Without dead ends: 977 [2021-10-07 15:39:12,663 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 78.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:39:12,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-10-07 15:39:12,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 492. [2021-10-07 15:39:12,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 323 states have (on average 4.3343653250774) internal successors, (1400), 491 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:39:12,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 1400 transitions. [2021-10-07 15:39:12,772 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 1400 transitions. Word has length 2 [2021-10-07 15:39:12,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:39:12,773 INFO L470 AbstractCegarLoop]: Abstraction has 492 states and 1400 transitions. [2021-10-07 15:39:12,773 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) [2021-10-07 15:39:12,773 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 1400 transitions. [2021-10-07 15:39:12,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 15:39:12,774 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:39:12,774 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 15:39:12,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-07 15:39:12,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:39:12,988 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-07 15:39:12,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:39:12,990 INFO L82 PathProgramCache]: Analyzing trace with hash 32806, now seen corresponding path program 1 times [2021-10-07 15:39:12,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:39:12,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208448656] [2021-10-07 15:39:12,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:39:12,991 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:39:12,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:39:12,992 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:39:12,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-07 15:39:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:39:13,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 15:39:13,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:39:13,195 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-07 15:39:13,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 59 [2021-10-07 15:39:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:39:13,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:39:13,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:39:13,566 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:39:13,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208448656] [2021-10-07 15:39:13,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208448656] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:39:13,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:39:13,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:39:13,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749261342] [2021-10-07 15:39:13,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:39:13,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:39:13,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:39:13,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:39:13,570 INFO L87 Difference]: Start difference. First operand 492 states and 1400 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) [2021-10-07 15:39:13,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:39:13,808 INFO L93 Difference]: Finished difference Result 490 states and 1394 transitions. [2021-10-07 15:39:13,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:39:13,813 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 [2021-10-07 15:39:13,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:39:13,818 INFO L225 Difference]: With dead ends: 490 [2021-10-07 15:39:13,819 INFO L226 Difference]: Without dead ends: 490 [2021-10-07 15:39:13,819 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:39:13,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-10-07 15:39:13,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2021-10-07 15:39:13,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 323 states have (on average 4.315789473684211) internal successors, (1394), 489 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:39:13,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 1394 transitions. [2021-10-07 15:39:13,852 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 1394 transitions. Word has length 2 [2021-10-07 15:39:13,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:39:13,852 INFO L470 AbstractCegarLoop]: Abstraction has 490 states and 1394 transitions. [2021-10-07 15:39:13,853 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) [2021-10-07 15:39:13,853 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 1394 transitions. [2021-10-07 15:39:13,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:39:13,853 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:39:13,853 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:39:13,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-07 15:39:14,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:39:14,065 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-07 15:39:14,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:39:14,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1024688, now seen corresponding path program 1 times [2021-10-07 15:39:14,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:39:14,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726625731] [2021-10-07 15:39:14,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:39:14,068 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:39:14,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:39:14,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:39:14,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-07 15:39:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:39:14,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-07 15:39:14,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:39:14,394 INFO L354 Elim1Store]: treesize reduction 151, result has 21.8 percent of original size [2021-10-07 15:39:14,395 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 43 treesize of output 71 [2021-10-07 15:39:14,405 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 93 treesize of output 91 [2021-10-07 15:39:14,809 INFO L354 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2021-10-07 15:39:14,810 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 30 treesize of output 39 [2021-10-07 15:39:15,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:39:15,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:39:15,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:39:15,843 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:39:15,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726625731] [2021-10-07 15:39:15,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726625731] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:39:15,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:39:15,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-10-07 15:39:15,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182460752] [2021-10-07 15:39:15,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:39:15,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:39:15,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:39:15,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:39:15,846 INFO L87 Difference]: Start difference. First operand 490 states and 1394 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:39:18,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:39:18,273 INFO L93 Difference]: Finished difference Result 391 states and 1069 transitions. [2021-10-07 15:39:18,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:39:18,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-07 15:39:18,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:39:18,278 INFO L225 Difference]: With dead ends: 391 [2021-10-07 15:39:18,278 INFO L226 Difference]: Without dead ends: 391 [2021-10-07 15:39:18,278 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 856.2ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:39:18,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2021-10-07 15:39:18,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2021-10-07 15:39:18,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 270 states have (on average 3.9592592592592593) internal successors, (1069), 390 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:39:18,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 1069 transitions. [2021-10-07 15:39:18,294 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 1069 transitions. Word has length 3 [2021-10-07 15:39:18,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:39:18,294 INFO L470 AbstractCegarLoop]: Abstraction has 391 states and 1069 transitions. [2021-10-07 15:39:18,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:39:18,294 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 1069 transitions. [2021-10-07 15:39:18,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:39:18,295 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:39:18,295 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:39:18,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-07 15:39:18,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:39:18,507 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-07 15:39:18,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:39:18,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1024689, now seen corresponding path program 1 times [2021-10-07 15:39:18,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:39:18,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623412602] [2021-10-07 15:39:18,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:39:18,510 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:39:18,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:39:18,511 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:39:18,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-07 15:39:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:39:18,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-07 15:39:18,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:39:18,765 INFO L354 Elim1Store]: treesize reduction 235, result has 17.8 percent of original size [2021-10-07 15:39:18,765 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 6 case distinctions, treesize of input 69 treesize of output 101 [2021-10-07 15:39:20,463 INFO L354 Elim1Store]: treesize reduction 138, result has 41.3 percent of original size [2021-10-07 15:39:20,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 87 treesize of output 170 [2021-10-07 15:39:30,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:39:30,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:39:30,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:39:30,325 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:39:30,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623412602] [2021-10-07 15:39:30,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [623412602] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:39:30,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:39:30,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 1] imperfect sequences [] total 3 [2021-10-07 15:39:30,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425666549] [2021-10-07 15:39:30,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:39:30,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:39:30,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:39:30,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=9, Unknown=1, NotChecked=0, Total=20 [2021-10-07 15:39:30,328 INFO L87 Difference]: Start difference. First operand 391 states and 1069 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:39:30,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:39:30,916 INFO L93 Difference]: Finished difference Result 292 states and 744 transitions. [2021-10-07 15:39:30,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:39:30,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-07 15:39:30,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:39:30,920 INFO L225 Difference]: With dead ends: 292 [2021-10-07 15:39:30,920 INFO L226 Difference]: Without dead ends: 292 [2021-10-07 15:39:30,920 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2550.0ms TimeCoverageRelationStatistics Valid=10, Invalid=9, Unknown=1, NotChecked=0, Total=20 [2021-10-07 15:39:30,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-10-07 15:39:30,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2021-10-07 15:39:30,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 217 states have (on average 3.4285714285714284) internal successors, (744), 291 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) [2021-10-07 15:39:30,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 744 transitions. [2021-10-07 15:39:30,931 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 744 transitions. Word has length 3 [2021-10-07 15:39:30,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:39:30,932 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 744 transitions. [2021-10-07 15:39:30,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:39:30,932 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 744 transitions. [2021-10-07 15:39:30,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 15:39:30,933 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:39:30,933 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-07 15:39:30,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-07 15:39:31,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:39:31,145 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-07 15:39:31,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:39:31,146 INFO L82 PathProgramCache]: Analyzing trace with hash 31715301, now seen corresponding path program 1 times [2021-10-07 15:39:31,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:39:31,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682468522] [2021-10-07 15:39:31,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:39:31,148 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:39:31,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:39:31,149 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:39:31,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-07 15:39:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:39:31,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 15:39:31,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:39:31,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 15:39:31,412 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-07 15:39:31,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 [2021-10-07 15:39:31,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:39:31,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:39:31,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:39:31,963 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:39:31,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682468522] [2021-10-07 15:39:31,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682468522] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-07 15:39:31,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:39:31,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-07 15:39:31,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982296355] [2021-10-07 15:39:31,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 15:39:31,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:39:31,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 15:39:31,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:39:31,966 INFO L87 Difference]: Start difference. First operand 292 states and 744 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) [2021-10-07 15:39:37,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:39:37,761 INFO L93 Difference]: Finished difference Result 1715 states and 4405 transitions. [2021-10-07 15:39:37,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-07 15:39:37,762 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 [2021-10-07 15:39:37,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:39:37,776 INFO L225 Difference]: With dead ends: 1715 [2021-10-07 15:39:37,777 INFO L226 Difference]: Without dead ends: 1715 [2021-10-07 15:39:37,777 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 773.6ms TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:39:37,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2021-10-07 15:39:37,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 300. [2021-10-07 15:39:37,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 225 states have (on average 3.3777777777777778) internal successors, (760), 299 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:39:37,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 760 transitions. [2021-10-07 15:39:37,802 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 760 transitions. Word has length 4 [2021-10-07 15:39:37,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:39:37,802 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 760 transitions. [2021-10-07 15:39:37,802 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) [2021-10-07 15:39:37,803 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 760 transitions. [2021-10-07 15:39:37,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:39:37,803 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:39:37,803 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:39:37,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-07 15:39:38,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:39:38,023 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-07 15:39:38,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:39:38,024 INFO L82 PathProgramCache]: Analyzing trace with hash 984749677, now seen corresponding path program 1 times [2021-10-07 15:39:38,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:39:38,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731575287] [2021-10-07 15:39:38,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:39:38,026 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:39:38,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:39:38,027 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:39:38,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-07 15:39:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:39:38,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:39:38,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:39:38,227 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-07 15:39:38,228 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 5 case distinctions, treesize of input 70 treesize of output 105 [2021-10-07 15:39:40,081 INFO L354 Elim1Store]: treesize reduction 127, result has 46.0 percent of original size [2021-10-07 15:39:40,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 85 treesize of output 179 [2021-10-07 15:39:50,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:39:50,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:39:50,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:39:50,951 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:39:50,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731575287] [2021-10-07 15:39:50,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731575287] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:39:50,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:39:50,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:39:50,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367785236] [2021-10-07 15:39:50,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:39:50,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:39:50,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:39:50,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:39:50,954 INFO L87 Difference]: Start difference. First operand 300 states and 760 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:39:51,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:39:51,186 INFO L93 Difference]: Finished difference Result 279 states and 715 transitions. [2021-10-07 15:39:51,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:39:51,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-07 15:39:51,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:39:51,189 INFO L225 Difference]: With dead ends: 279 [2021-10-07 15:39:51,190 INFO L226 Difference]: Without dead ends: 279 [2021-10-07 15:39:51,190 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 78.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:39:51,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-10-07 15:39:51,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2021-10-07 15:39:51,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 218 states have (on average 3.279816513761468) internal successors, (715), 278 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:39:51,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 715 transitions. [2021-10-07 15:39:51,200 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 715 transitions. Word has length 5 [2021-10-07 15:39:51,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:39:51,201 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 715 transitions. [2021-10-07 15:39:51,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:39:51,201 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 715 transitions. [2021-10-07 15:39:51,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:39:51,202 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:39:51,202 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:39:51,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-07 15:39:51,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:39:51,414 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-07 15:39:51,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:39:51,415 INFO L82 PathProgramCache]: Analyzing trace with hash 984749679, now seen corresponding path program 1 times [2021-10-07 15:39:51,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:39:51,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450550708] [2021-10-07 15:39:51,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:39:51,417 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:39:51,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:39:51,418 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:39:51,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-07 15:39:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:39:51,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-07 15:39:51,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:39:51,658 INFO L354 Elim1Store]: treesize reduction 155, result has 19.7 percent of original size [2021-10-07 15:39:51,658 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 44 treesize of output 68 [2021-10-07 15:39:51,664 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 188 treesize of output 184 [2021-10-07 15:39:51,964 INFO L354 Elim1Store]: treesize reduction 64, result has 27.3 percent of original size [2021-10-07 15:39:51,965 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 56 [2021-10-07 15:39:54,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:39:54,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:39:54,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:39:54,686 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:39:54,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450550708] [2021-10-07 15:39:54,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450550708] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:39:54,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:39:54,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-10-07 15:39:54,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081425709] [2021-10-07 15:39:54,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:39:54,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:39:54,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:39:54,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:39:54,689 INFO L87 Difference]: Start difference. First operand 279 states and 715 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) [2021-10-07 15:39:59,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:39:59,636 INFO L93 Difference]: Finished difference Result 258 states and 670 transitions. [2021-10-07 15:39:59,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:39:59,637 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 5 [2021-10-07 15:39:59,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:39:59,640 INFO L225 Difference]: With dead ends: 258 [2021-10-07 15:39:59,640 INFO L226 Difference]: Without dead ends: 258 [2021-10-07 15:39:59,641 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 262.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:39:59,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-10-07 15:39:59,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2021-10-07 15:39:59,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 211 states have (on average 3.175355450236967) internal successors, (670), 257 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:39:59,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 670 transitions. [2021-10-07 15:39:59,650 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 670 transitions. Word has length 5 [2021-10-07 15:39:59,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:39:59,651 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 670 transitions. [2021-10-07 15:39:59,651 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) [2021-10-07 15:39:59,651 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 670 transitions. [2021-10-07 15:39:59,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-07 15:39:59,652 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:39:59,652 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-07 15:39:59,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-07 15:39:59,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:39:59,865 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-07 15:39:59,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:39:59,866 INFO L82 PathProgramCache]: Analyzing trace with hash 462467052, now seen corresponding path program 1 times [2021-10-07 15:39:59,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:39:59,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178396315] [2021-10-07 15:39:59,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:39:59,867 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:39:59,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:39:59,868 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:39:59,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-07 15:39:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:39:59,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-07 15:39:59,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:39:59,969 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 8 treesize of output 7 [2021-10-07 15:40:00,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:40:00,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:40:00,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:40:00,277 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:40:00,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178396315] [2021-10-07 15:40:00,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178396315] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:40:00,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:40:00,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-07 15:40:00,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265744739] [2021-10-07 15:40:00,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 15:40:00,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:40:00,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 15:40:00,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:40:00,279 INFO L87 Difference]: Start difference. First operand 258 states and 670 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:40:01,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:40:01,100 INFO L93 Difference]: Finished difference Result 578 states and 1536 transitions. [2021-10-07 15:40:01,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-07 15:40:01,102 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-07 15:40:01,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:40:01,107 INFO L225 Difference]: With dead ends: 578 [2021-10-07 15:40:01,107 INFO L226 Difference]: Without dead ends: 578 [2021-10-07 15:40:01,107 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 282.0ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-07 15:40:01,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2021-10-07 15:40:01,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 306. [2021-10-07 15:40:01,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 259 states have (on average 3.741312741312741) internal successors, (969), 305 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:40:01,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 969 transitions. [2021-10-07 15:40:01,120 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 969 transitions. Word has length 6 [2021-10-07 15:40:01,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:40:01,121 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 969 transitions. [2021-10-07 15:40:01,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:40:01,121 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 969 transitions. [2021-10-07 15:40:01,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-07 15:40:01,122 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:40:01,122 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-07 15:40:01,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-07 15:40:01,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:40:01,335 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-07 15:40:01,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:40:01,336 INFO L82 PathProgramCache]: Analyzing trace with hash 462467054, now seen corresponding path program 1 times [2021-10-07 15:40:01,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:40:01,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286938649] [2021-10-07 15:40:01,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:40:01,337 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:40:01,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:40:01,338 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:40:01,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-07 15:40:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:40:01,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:40:01,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:40:01,428 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 [2021-10-07 15:40:01,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:40:01,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:40:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:40:01,487 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:40:01,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286938649] [2021-10-07 15:40:01,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286938649] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:40:01,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:40:01,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-07 15:40:01,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911285499] [2021-10-07 15:40:01,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:40:01,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:40:01,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:40:01,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:40:01,490 INFO L87 Difference]: Start difference. First operand 306 states and 969 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:40:01,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:40:01,693 INFO L93 Difference]: Finished difference Result 242 states and 754 transitions. [2021-10-07 15:40:01,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:40:01,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-07 15:40:01,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:40:01,696 INFO L225 Difference]: With dead ends: 242 [2021-10-07 15:40:01,696 INFO L226 Difference]: Without dead ends: 242 [2021-10-07 15:40:01,696 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:40:01,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-07 15:40:01,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-10-07 15:40:01,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 212 states have (on average 3.556603773584906) internal successors, (754), 241 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:40:01,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 754 transitions. [2021-10-07 15:40:01,707 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 754 transitions. Word has length 6 [2021-10-07 15:40:01,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:40:01,708 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 754 transitions. [2021-10-07 15:40:01,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:40:01,708 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 754 transitions. [2021-10-07 15:40:01,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-07 15:40:01,709 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:40:01,709 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-07 15:40:01,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-07 15:40:01,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:40:01,922 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-07 15:40:01,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:40:01,923 INFO L82 PathProgramCache]: Analyzing trace with hash 462466978, now seen corresponding path program 1 times [2021-10-07 15:40:01,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:40:01,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035827698] [2021-10-07 15:40:01,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:40:01,924 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:40:01,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:40:01,925 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:40:01,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-07 15:40:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:40:02,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-07 15:40:02,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:40:02,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:40:02,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:40:02,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:40:02,135 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:40:02,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035827698] [2021-10-07 15:40:02,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035827698] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:40:02,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:40:02,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-07 15:40:02,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826525000] [2021-10-07 15:40:02,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 15:40:02,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:40:02,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 15:40:02,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:40:02,137 INFO L87 Difference]: Start difference. First operand 242 states and 754 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:40:02,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:40:02,534 INFO L93 Difference]: Finished difference Result 335 states and 956 transitions. [2021-10-07 15:40:02,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-07 15:40:02,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-07 15:40:02,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:40:02,541 INFO L225 Difference]: With dead ends: 335 [2021-10-07 15:40:02,541 INFO L226 Difference]: Without dead ends: 335 [2021-10-07 15:40:02,542 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 52.6ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:40:02,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-10-07 15:40:02,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 278. [2021-10-07 15:40:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 248 states have (on average 3.4516129032258065) internal successors, (856), 277 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:40:02,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 856 transitions. [2021-10-07 15:40:02,560 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 856 transitions. Word has length 6 [2021-10-07 15:40:02,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:40:02,560 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 856 transitions. [2021-10-07 15:40:02,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:40:02,560 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 856 transitions. [2021-10-07 15:40:02,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:40:02,562 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:40:02,562 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:40:02,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-07 15:40:02,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:40:02,778 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-07 15:40:02,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:40:02,779 INFO L82 PathProgramCache]: Analyzing trace with hash -7742432, now seen corresponding path program 1 times [2021-10-07 15:40:02,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:40:02,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896889402] [2021-10-07 15:40:02,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:40:02,780 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:40:02,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:40:02,781 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:40:02,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-07 15:40:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:40:02,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-07 15:40:02,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:40:02,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:40:02,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:40:03,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:40:03,036 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:40:03,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896889402] [2021-10-07 15:40:03,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896889402] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:40:03,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:40:03,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-07 15:40:03,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343641574] [2021-10-07 15:40:03,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 15:40:03,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:40:03,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 15:40:03,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:40:03,038 INFO L87 Difference]: Start difference. First operand 278 states and 856 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:40:03,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:40:03,449 INFO L93 Difference]: Finished difference Result 392 states and 1130 transitions. [2021-10-07 15:40:03,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-07 15:40:03,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-07 15:40:03,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:40:03,453 INFO L225 Difference]: With dead ends: 392 [2021-10-07 15:40:03,453 INFO L226 Difference]: Without dead ends: 392 [2021-10-07 15:40:03,453 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 96.0ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:40:03,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-10-07 15:40:03,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 278. [2021-10-07 15:40:03,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 248 states have (on average 3.4516129032258065) internal successors, (856), 277 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:40:03,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 856 transitions. [2021-10-07 15:40:03,463 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 856 transitions. Word has length 7 [2021-10-07 15:40:03,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:40:03,463 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 856 transitions. [2021-10-07 15:40:03,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:40:03,463 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 856 transitions. [2021-10-07 15:40:03,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-07 15:40:03,464 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:40:03,464 INFO L512 BasicCegarLoop]: trace histogram [6, 1, 1] [2021-10-07 15:40:03,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-07 15:40:03,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:40:03,676 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-07 15:40:03,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:40:03,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1747976347, now seen corresponding path program 2 times [2021-10-07 15:40:03,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:40:03,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436006960] [2021-10-07 15:40:03,679 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:40:03,679 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:40:03,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:40:03,682 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:40:03,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-07 15:40:03,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-07 15:40:03,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:40:03,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 15:40:03,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:40:03,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 15:40:04,028 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-07 15:40:04,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 [2021-10-07 15:40:04,359 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:40:04,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:40:05,727 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:40:05,727 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:40:05,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436006960] [2021-10-07 15:40:05,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436006960] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-07 15:40:05,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:40:05,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-10-07 15:40:05,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672923175] [2021-10-07 15:40:05,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-07 15:40:05,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:40:05,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-07 15:40:05,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-10-07 15:40:05,730 INFO L87 Difference]: Start difference. First operand 278 states and 856 transitions. Second operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 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) [2021-10-07 15:40:38,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:40:38,232 INFO L93 Difference]: Finished difference Result 3153 states and 9951 transitions. [2021-10-07 15:40:38,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:40:38,240 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 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 8 [2021-10-07 15:40:38,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:40:38,265 INFO L225 Difference]: With dead ends: 3153 [2021-10-07 15:40:38,265 INFO L226 Difference]: Without dead ends: 3153 [2021-10-07 15:40:38,266 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 6265.2ms TimeCoverageRelationStatistics Valid=221, Invalid=379, Unknown=0, NotChecked=0, Total=600 [2021-10-07 15:40:38,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3153 states. [2021-10-07 15:40:38,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3153 to 300. [2021-10-07 15:40:38,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 270 states have (on average 3.348148148148148) internal successors, (904), 299 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:40:38,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 904 transitions. [2021-10-07 15:40:38,311 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 904 transitions. Word has length 8 [2021-10-07 15:40:38,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:40:38,312 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 904 transitions. [2021-10-07 15:40:38,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 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) [2021-10-07 15:40:38,312 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 904 transitions. [2021-10-07 15:40:38,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-07 15:40:38,313 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:40:38,313 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:40:38,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-07 15:40:38,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:40:38,528 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 44 more)] === [2021-10-07 15:40:38,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:40:38,530 INFO L82 PathProgramCache]: Analyzing trace with hash -240169074, now seen corresponding path program 1 times [2021-10-07 15:40:38,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:40:38,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656454088] [2021-10-07 15:40:38,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:40:38,531 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:40:38,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:40:38,532 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:40:38,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-07 15:40:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:40:38,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-07 15:40:38,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:40:38,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 15:40:38,866 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-07 15:40:38,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 42 treesize of output 80 [2021-10-07 15:40:39,033 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-07 15:40:39,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 117 [2021-10-07 15:41:02,928 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:41:02,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656454088] [2021-10-07 15:41:02,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-10-07 15:41:02,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [647293901] [2021-10-07 15:41:02,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:41:02,930 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-07 15:41:02,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 [2021-10-07 15:41:02,938 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-07 15:41:02,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-10-07 15:41:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:41:03,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-07 15:41:03,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:41:03,428 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-07 15:41:03,428 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 42 treesize of output 80 [2021-10-07 15:41:03,595 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-07 15:41:03,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 117 [2021-10-07 15:41:27,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-10-07 15:41:27,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949440031] [2021-10-07 15:41:27,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:41:27,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:41:27,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:41:27,740 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:41:27,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-07 15:41:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:41:27,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-07 15:41:27,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:41:28,111 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-07 15:41:28,112 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 42 treesize of output 80 [2021-10-07 15:41:28,314 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-07 15:41:28,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 117 [2021-10-07 15:41:52,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-10-07 15:41:52,152 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:41:52,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-07 15:41:52,152 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-07 15:41:52,153 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-07 15:41:52,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1REQUIRES_VIOLATION [2021-10-07 15:41:52,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0REQUIRES_VIOLATION [2021-10-07 15:41:52,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1REQUIRES_VIOLATION [2021-10-07 15:41:52,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2REQUIRES_VIOLATION [2021-10-07 15:41:52,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3REQUIRES_VIOLATION [2021-10-07 15:41:52,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4REQUIRES_VIOLATION [2021-10-07 15:41:52,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5REQUIRES_VIOLATION [2021-10-07 15:41:52,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6REQUIRES_VIOLATION [2021-10-07 15:41:52,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7REQUIRES_VIOLATION [2021-10-07 15:41:52,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATION [2021-10-07 15:41:52,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATION [2021-10-07 15:41:52,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2REQUIRES_VIOLATION [2021-10-07 15:41:52,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3REQUIRES_VIOLATION [2021-10-07 15:41:52,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4REQUIRES_VIOLATION [2021-10-07 15:41:52,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5REQUIRES_VIOLATION [2021-10-07 15:41:52,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6REQUIRES_VIOLATION [2021-10-07 15:41:52,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7REQUIRES_VIOLATION [2021-10-07 15:41:52,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-07 15:41:52,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-07 15:41:52,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-07 15:41:52,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-07 15:41:52,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-07 15:41:52,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-07 15:41:52,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-07 15:41:52,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-07 15:41:52,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-07 15:41:52,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-07 15:41:52,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-07 15:41:52,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-07 15:41:52,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 15:41:52,162 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 15:41:52,162 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 15:41:52,162 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 15:41:52,162 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0REQUIRES_VIOLATION [2021-10-07 15:41:52,162 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2REQUIRES_VIOLATION [2021-10-07 15:41:52,162 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3REQUIRES_VIOLATION [2021-10-07 15:41:52,162 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4REQUIRES_VIOLATION [2021-10-07 15:41:52,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5REQUIRES_VIOLATION [2021-10-07 15:41:52,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6REQUIRES_VIOLATION [2021-10-07 15:41:52,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7REQUIRES_VIOLATION [2021-10-07 15:41:52,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATION [2021-10-07 15:41:52,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATION [2021-10-07 15:41:52,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2REQUIRES_VIOLATION [2021-10-07 15:41:52,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3REQUIRES_VIOLATION [2021-10-07 15:41:52,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4REQUIRES_VIOLATION [2021-10-07 15:41:52,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5REQUIRES_VIOLATION [2021-10-07 15:41:52,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6REQUIRES_VIOLATION [2021-10-07 15:41:52,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7REQUIRES_VIOLATION [2021-10-07 15:41:52,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-10-07 15:41:52,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-07 15:41:52,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-07 15:41:52,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,16 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:41:52,774 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 15:41:52,774 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 15:41:52,776 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transformations.BlockEncodingBacktranslator.translateProgramExecution(BlockEncodingBacktranslator.java:130) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getProgramExecutionAsString(UnprovableResult.java:132) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getLongDescription(UnprovableResult.java:125) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:589) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-07 15:41:52,782 INFO L168 Benchmark]: Toolchain (without parser) took 202545.40 ms. Allocated memory was 173.0 MB in the beginning and 207.6 MB in the end (delta: 34.6 MB). Free memory was 146.2 MB in the beginning and 132.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 49.0 MB. Max. memory is 8.0 GB. [2021-10-07 15:41:52,782 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 173.0 MB. Free memory was 142.7 MB in the beginning and 142.6 MB in the end (delta: 79.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 15:41:52,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 513.43 ms. Allocated memory is still 173.0 MB. Free memory was 145.9 MB in the beginning and 132.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-07 15:41:52,783 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.73 ms. Allocated memory is still 173.0 MB. Free memory was 132.3 MB in the beginning and 130.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-07 15:41:52,783 INFO L168 Benchmark]: Boogie Preprocessor took 82.04 ms. Allocated memory is still 173.0 MB. Free memory was 130.4 MB in the beginning and 128.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:41:52,784 INFO L168 Benchmark]: RCFGBuilder took 937.43 ms. Allocated memory is still 173.0 MB. Free memory was 128.4 MB in the beginning and 141.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:41:52,784 INFO L168 Benchmark]: TraceAbstraction took 200909.62 ms. Allocated memory was 173.0 MB in the beginning and 207.6 MB in the end (delta: 34.6 MB). Free memory was 141.3 MB in the beginning and 132.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 43.3 MB. Max. memory is 8.0 GB. [2021-10-07 15:41:52,791 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 173.0 MB. Free memory was 142.7 MB in the beginning and 142.6 MB in the end (delta: 79.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 513.43 ms. Allocated memory is still 173.0 MB. Free memory was 145.9 MB in the beginning and 132.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 79.73 ms. Allocated memory is still 173.0 MB. Free memory was 132.3 MB in the beginning and 130.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 82.04 ms. Allocated memory is still 173.0 MB. Free memory was 130.4 MB in the beginning and 128.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 937.43 ms. Allocated memory is still 173.0 MB. Free memory was 128.4 MB in the beginning and 141.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 200909.62 ms. Allocated memory was 173.0 MB in the beginning and 207.6 MB in the end (delta: 34.6 MB). Free memory was 141.3 MB in the beginning and 132.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 43.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38814.6ms, 232 PlacesBefore, 57 PlacesAfterwards, 250 TransitionsBefore, 57 TransitionsAfterwards, 6816 CoEnabledTransitionPairs, 7 FixpointIterations, 123 TrivialSequentialCompositions, 111 ConcurrentSequentialCompositions, 24 TrivialYvCompositions, 23 ConcurrentYvCompositions, 18 ChoiceCompositions, 299 TotalNumberOfCompositions, 10378 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8491, positive: 8369, positive conditional: 0, positive unconditional: 8369, negative: 122, negative conditional: 0, negative unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4878, positive: 4843, positive conditional: 0, positive unconditional: 4843, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4878, positive: 4843, positive conditional: 0, positive unconditional: 4843, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2346, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2346, negative conditional: 0, negative unconditional: 2346, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8491, positive: 3526, positive conditional: 0, positive unconditional: 3526, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 4878, unknown conditional: 0, unknown unconditional: 4878] , Statistics on independence cache: Total cache size (in pairs): 328, Positive cache size: 316, Positive conditional cache size: 0, Positive unconditional cache size: 316, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - 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 - ExceptionOrErrorResult: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transformations.BlockEncodingBacktranslator.translateProgramExecution(BlockEncodingBacktranslator.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-07 15:41:52,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...