/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/BuchiAutomizerCInline.xml -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf -i ../../../trunk/examples/svcomp/weaver/popl20-figure1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-0d686a6 [2022-07-26 13:53:53,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-26 13:53:53,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-26 13:53:53,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-07-26 13:53:53,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-26 13:53:53,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-26 13:53:53,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-26 13:53:53,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-26 13:53:53,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-26 13:53:53,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-26 13:53:53,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-26 13:53:53,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-26 13:53:53,771 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-26 13:53:53,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-26 13:53:53,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-26 13:53:53,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-26 13:53:53,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-26 13:53:53,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-26 13:53:53,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-26 13:53:53,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-26 13:53:53,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-26 13:53:53,785 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf [2022-07-26 13:53:53,803 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-26 13:53:53,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-26 13:53:53,803 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-26 13:53:53,803 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-26 13:53:53,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-26 13:53:53,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-26 13:53:53,804 INFO L138 SettingsManager]: * Use SBE=true [2022-07-26 13:53:53,805 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-26 13:53:53,805 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-26 13:53:53,805 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-26 13:53:53,805 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-26 13:53:53,805 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-26 13:53:53,805 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-26 13:53:53,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-26 13:53:53,805 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-26 13:53:53,805 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-26 13:53:53,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-26 13:53:53,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-26 13:53:53,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-26 13:53:53,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-26 13:53:53,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-26 13:53:53,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-26 13:53:53,806 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-26 13:53:53,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-26 13:53:53,806 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-26 13:53:53,807 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-26 13:53:53,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-26 13:53:53,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-26 13:53:53,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-26 13:53:53,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-26 13:53:53,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-26 13:53:53,808 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-26 13:53:53,808 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-26 13:53:54,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-26 13:53:54,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-26 13:53:54,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-26 13:53:54,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-26 13:53:54,029 INFO L275 PluginConnector]: CDTParser initialized [2022-07-26 13:53:54,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-figure1.wvr.c [2022-07-26 13:53:54,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4476ff4ce/0b5fad4a1bcc4de8ae3362511c71d454/FLAGc46fa6c8b [2022-07-26 13:53:54,495 INFO L306 CDTParser]: Found 1 translation units. [2022-07-26 13:53:54,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure1.wvr.c [2022-07-26 13:53:54,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4476ff4ce/0b5fad4a1bcc4de8ae3362511c71d454/FLAGc46fa6c8b [2022-07-26 13:53:54,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4476ff4ce/0b5fad4a1bcc4de8ae3362511c71d454 [2022-07-26 13:53:54,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-26 13:53:54,914 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-26 13:53:54,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-26 13:53:54,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-26 13:53:54,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-26 13:53:54,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 01:53:54" (1/1) ... [2022-07-26 13:53:54,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bdc9bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:53:54, skipping insertion in model container [2022-07-26 13:53:54,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 01:53:54" (1/1) ... [2022-07-26 13:53:54,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-26 13:53:54,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-26 13:53:55,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure1.wvr.c[1991,2004] [2022-07-26 13:53:55,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 13:53:55,117 INFO L203 MainTranslator]: Completed pre-run [2022-07-26 13:53:55,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure1.wvr.c[1991,2004] [2022-07-26 13:53:55,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 13:53:55,141 INFO L208 MainTranslator]: Completed translation [2022-07-26 13:53:55,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:53:55 WrapperNode [2022-07-26 13:53:55,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-26 13:53:55,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-26 13:53:55,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-26 13:53:55,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-26 13:53:55,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:53:55" (1/1) ... [2022-07-26 13:53:55,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:53:55" (1/1) ... [2022-07-26 13:53:55,172 INFO L137 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2022-07-26 13:53:55,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-26 13:53:55,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-26 13:53:55,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-26 13:53:55,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-26 13:53:55,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:53:55" (1/1) ... [2022-07-26 13:53:55,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:53:55" (1/1) ... [2022-07-26 13:53:55,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:53:55" (1/1) ... [2022-07-26 13:53:55,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:53:55" (1/1) ... [2022-07-26 13:53:55,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:53:55" (1/1) ... [2022-07-26 13:53:55,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:53:55" (1/1) ... [2022-07-26 13:53:55,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:53:55" (1/1) ... [2022-07-26 13:53:55,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-26 13:53:55,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-26 13:53:55,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-26 13:53:55,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-26 13:53:55,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:53:55" (1/1) ... [2022-07-26 13:53:55,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:55,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:55,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:55,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-26 13:53:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-26 13:53:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-26 13:53:55,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-26 13:53:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-26 13:53:55,262 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-26 13:53:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-26 13:53:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-26 13:53:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-26 13:53:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-26 13:53:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-26 13:53:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-26 13:53:55,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-26 13:53:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-26 13:53:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-26 13:53:55,268 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-26 13:53:55,323 INFO L234 CfgBuilder]: Building ICFG [2022-07-26 13:53:55,324 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-26 13:53:55,455 INFO L275 CfgBuilder]: Performing block encoding [2022-07-26 13:53:55,489 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-26 13:53:55,489 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-26 13:53:55,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 01:53:55 BoogieIcfgContainer [2022-07-26 13:53:55,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-26 13:53:55,492 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-26 13:53:55,492 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-26 13:53:55,496 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-26 13:53:55,496 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:53:55,497 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.07 01:53:54" (1/3) ... [2022-07-26 13:53:55,497 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@355e68a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 01:53:55, skipping insertion in model container [2022-07-26 13:53:55,497 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:53:55,498 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:53:55" (2/3) ... [2022-07-26 13:53:55,498 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@355e68a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 01:53:55, skipping insertion in model container [2022-07-26 13:53:55,498 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:53:55,498 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 01:53:55" (3/3) ... [2022-07-26 13:53:55,499 INFO L322 chiAutomizerObserver]: Analyzing ICFG popl20-figure1.wvr.c [2022-07-26 13:53:55,614 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-26 13:53:55,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 77 transitions, 170 flow [2022-07-26 13:53:55,695 INFO L129 PetriNetUnfolder]: 5/73 cut-off events. [2022-07-26 13:53:55,696 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-26 13:53:55,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 73 events. 5/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-07-26 13:53:55,699 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 77 transitions, 170 flow [2022-07-26 13:53:55,705 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 73 transitions, 158 flow [2022-07-26 13:53:55,708 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-26 13:53:55,720 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 73 transitions, 158 flow [2022-07-26 13:53:55,722 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 73 transitions, 158 flow [2022-07-26 13:53:55,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 73 transitions, 158 flow [2022-07-26 13:53:55,736 INFO L129 PetriNetUnfolder]: 5/73 cut-off events. [2022-07-26 13:53:55,737 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-26 13:53:55,737 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 73 events. 5/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-07-26 13:53:55,739 INFO L116 LiptonReduction]: Number of co-enabled transitions 500 [2022-07-26 13:53:57,501 INFO L131 LiptonReduction]: Checked pairs total: 486 [2022-07-26 13:53:57,502 INFO L133 LiptonReduction]: Total number of compositions: 66 [2022-07-26 13:53:57,522 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2022-07-26 13:53:57,523 INFO L302 stractBuchiCegarLoop]: Hoare is false [2022-07-26 13:53:57,523 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-26 13:53:57,523 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-26 13:53:57,523 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-26 13:53:57,523 INFO L306 stractBuchiCegarLoop]: Difference is false [2022-07-26 13:53:57,523 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-26 13:53:57,523 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-26 13:53:57,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-26 13:53:57,554 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 14 [2022-07-26 13:53:57,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 13:53:57,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 13:53:57,559 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-26 13:53:57,559 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-26 13:53:57,560 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-26 13:53:57,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 33 states, but on-demand construction may add more states [2022-07-26 13:53:57,563 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 14 [2022-07-26 13:53:57,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 13:53:57,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 13:53:57,564 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-26 13:53:57,564 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-26 13:53:57,568 INFO L733 eck$LassoCheckResult]: Stem: 80#[ULTIMATE.startENTRY]don't care [290] ULTIMATE.startENTRY-->L67-3: Formula: (let ((.cse0 (select |v_#memory_int_44| 1)) (.cse1 (store |v_#valid_97| |v_ULTIMATE.start_main_~#t1~0#1.base_45| 1))) (and (= (select |v_#valid_97| 2) 1) (= v_~counter~0_94 0) (= (select |v_#valid_97| 1) 1) (= |v_#memory_int_43| (store |v_#memory_int_44| |v_ULTIMATE.start_main_~#t1~0#1.base_45| (store (select |v_#memory_int_44| |v_ULTIMATE.start_main_~#t1~0#1.base_45|) |v_ULTIMATE.start_main_~#t1~0#1.offset_35| |v_ULTIMATE.start_main_#t~pre6#1_27|))) (= (select |v_#length_58| 1) 2) (= |v_ULTIMATE.start_main_~#t2~0#1.offset_41| 0) (< 0 |v_#StackHeapBarrier_22|) (= 48 (select .cse0 0)) (= (select |v_#valid_97| 0) 0) (= |v_ULTIMATE.start_main_#t~pre6#1_27| |v_#pthreadsForks_36|) (= (select .cse0 1) 0) (= (select |v_#valid_97| |v_ULTIMATE.start_main_~#t1~0#1.base_45|) 0) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_35| 0) (= (select |v_#length_58| 2) 21) (= |v_#NULL.offset_8| 0) (= (select .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_51|) 0) (< |v_#StackHeapBarrier_22| |v_ULTIMATE.start_main_~#t2~0#1.base_51|) (= (store (store |v_#length_58| |v_ULTIMATE.start_main_~#t1~0#1.base_45| 4) |v_ULTIMATE.start_main_~#t2~0#1.base_51| 4) |v_#length_57|) (= |v_#NULL.base_8| 0) (< |v_#StackHeapBarrier_22| |v_ULTIMATE.start_main_~#t1~0#1.base_45|) (= |v_#valid_96| (store .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_51| 1)) (= |v_#pthreadsForks_35| (+ |v_#pthreadsForks_36| 1)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_22|, #pthreadsForks=|v_#pthreadsForks_36|, #valid=|v_#valid_97|, #memory_int=|v_#memory_int_44|, #length=|v_#length_58|} OutVars{~counter~0=v_~counter~0_94, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_27|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_41|, ULTIMATE.start_main_#t~nondet9#1=|v_ULTIMATE.start_main_#t~nondet9#1_13|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_30|, ULTIMATE.start_main_#t~pre8#1=|v_ULTIMATE.start_main_#t~pre8#1_23|, #NULL.offset=|v_#NULL.offset_8|, ~N~0=v_~N~0_39, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_45|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_35|, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|, #NULL.base=|v_#NULL.base_8|, #StackHeapBarrier=|v_#StackHeapBarrier_22|, #pthreadsForks=|v_#pthreadsForks_35|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_24|, #valid=|v_#valid_96|, ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_13|, #memory_int=|v_#memory_int_43|, ULTIMATE.start_main_#t~mem11#1=|v_ULTIMATE.start_main_#t~mem11#1_24|, #length=|v_#length_57|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_51|} AuxVars[] AssignedVars[~counter~0, ULTIMATE.start_main_#t~pre6#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet9#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~pre8#1, #NULL.offset, ~N~0, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_#t~mem10#1, #NULL.base, #pthreadsForks, ULTIMATE.start_main_#t~nondet5#1, #valid, ULTIMATE.start_main_#t~nondet7#1, #memory_int, ULTIMATE.start_main_#t~mem11#1, #length, ULTIMATE.start_main_~#t2~0#1.base] 83#[L67-3]don't care [223] L67-3-->thread1ENTRY: Formula: (and (= |v_ULTIMATE.start_main_#t~pre6#1_6| v_thread1Thread1of1ForFork1_thidvar0_2) (= 0 v_thread1Thread1of1ForFork1_thidvar1_2)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_6|} OutVars{thread1Thread1of1ForFork1_#res.base=|v_thread1Thread1of1ForFork1_#res.base_4|, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_6|, thread1Thread1of1ForFork1_#t~post1=|v_thread1Thread1of1ForFork1_#t~post1_8|, thread1Thread1of1ForFork1_#t~post2=|v_thread1Thread1of1ForFork1_#t~post2_4|, thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_12, thread1Thread1of1ForFork1_#res.offset=|v_thread1Thread1of1ForFork1_#res.offset_4|, thread1Thread1of1ForFork1_thidvar1=v_thread1Thread1of1ForFork1_thidvar1_2, thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_#res.base, thread1Thread1of1ForFork1_#t~post1, thread1Thread1of1ForFork1_#t~post2, thread1Thread1of1ForFork1_~i~0, thread1Thread1of1ForFork1_#res.offset, thread1Thread1of1ForFork1_thidvar1, thread1Thread1of1ForFork1_thidvar0] 85#[L67-4, thread1ENTRY]don't care [198] thread1ENTRY-->L41-4: Formula: (= v_thread1Thread1of1ForFork1_~i~0_1 0) InVars {} OutVars{thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_~i~0] 87#[L41-4, L67-4]don't care [2022-07-26 13:53:57,569 INFO L735 eck$LassoCheckResult]: Loop: 87#[L41-4, L67-4]don't care [279] L41-4-->L41-4: Formula: (and (< v_thread1Thread1of1ForFork1_~i~0_28 v_~N~0_29) (= (+ v_~counter~0_79 1) v_~counter~0_78) (= v_thread1Thread1of1ForFork1_~i~0_27 (+ v_thread1Thread1of1ForFork1_~i~0_28 1))) InVars {~counter~0=v_~counter~0_79, thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_28, ~N~0=v_~N~0_29} OutVars{~counter~0=v_~counter~0_78, thread1Thread1of1ForFork1_#t~post1=|v_thread1Thread1of1ForFork1_#t~post1_21|, thread1Thread1of1ForFork1_#t~post2=|v_thread1Thread1of1ForFork1_#t~post2_13|, thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_27, ~N~0=v_~N~0_29} AuxVars[] AssignedVars[~counter~0, thread1Thread1of1ForFork1_#t~post1, thread1Thread1of1ForFork1_#t~post2, thread1Thread1of1ForFork1_~i~0] 87#[L41-4, L67-4]don't care [2022-07-26 13:53:57,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:53:57,574 INFO L85 PathProgramCache]: Analyzing trace with hash 315592, now seen corresponding path program 1 times [2022-07-26 13:53:57,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:53:57,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339296651] [2022-07-26 13:53:57,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:53:57,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:53:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:53:57,699 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:53:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:53:57,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:53:57,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:53:57,747 INFO L85 PathProgramCache]: Analyzing trace with hash 310, now seen corresponding path program 1 times [2022-07-26 13:53:57,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:53:57,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276333738] [2022-07-26 13:53:57,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:53:57,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:53:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:53:57,756 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:53:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:53:57,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:53:57,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:53:57,764 INFO L85 PathProgramCache]: Analyzing trace with hash 9783631, now seen corresponding path program 1 times [2022-07-26 13:53:57,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:53:57,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688915602] [2022-07-26 13:53:57,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:53:57,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:53:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:53:57,782 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:53:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:53:57,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:53:57,845 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 13:53:57,846 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 13:53:57,846 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 13:53:57,846 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 13:53:57,846 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-26 13:53:57,846 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:57,846 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 13:53:57,846 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 13:53:57,846 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-figure1.wvr.c_BEv2_Iteration1_Loop [2022-07-26 13:53:57,847 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 13:53:57,847 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 13:53:57,862 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:57,868 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:57,870 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:57,872 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:57,875 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:57,877 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:57,881 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:57,886 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:57,948 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 13:53:57,949 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-26 13:53:57,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:57,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:57,954 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:57,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-26 13:53:57,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:53:57,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:57,978 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:53:57,978 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread2.offset_1=1} Honda state: {v_rep#funAddr~thread2.offset_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:53:57,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-26 13:53:57,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:57,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:57,996 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:57,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-26 13:53:57,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:53:57,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:58,004 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:53:58,004 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork1_#t~post2=0} Honda state: {thread1Thread1of1ForFork1_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:53:58,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:58,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,031 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,045 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:53:58,045 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:58,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-26 13:53:58,063 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:53:58,063 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork1_#t~post1=0} Honda state: {thread1Thread1of1ForFork1_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:53:58,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:58,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,087 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-26 13:53:58,092 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:53:58,092 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:58,111 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:53:58,112 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread1.base_1=-1} Honda state: {v_rep#funAddr~thread1.base_1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:53:58,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:58,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,146 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-26 13:53:58,149 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:53:58,149 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:58,161 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:53:58,161 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread1.offset_1=0} Honda state: {v_rep#funAddr~thread1.offset_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:53:58,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:58,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,179 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-26 13:53:58,182 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:53:58,182 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:58,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:58,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,204 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-26 13:53:58,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-26 13:53:58,206 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:58,224 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:53:58,224 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~counter~0=0} Honda state: {~counter~0=0} Generalized eigenvectors: [{~counter~0=-6}, {~counter~0=6}, {~counter~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] [2022-07-26 13:53:58,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-07-26 13:53:58,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,241 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-26 13:53:58,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:53:58,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:58,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:58,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,306 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,312 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-26 13:53:58,312 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:58,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-26 13:53:58,423 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-26 13:53:58,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-07-26 13:53:58,427 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 13:53:58,427 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 13:53:58,427 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 13:53:58,427 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 13:53:58,427 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-26 13:53:58,427 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,427 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 13:53:58,427 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 13:53:58,427 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-figure1.wvr.c_BEv2_Iteration1_Loop [2022-07-26 13:53:58,427 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 13:53:58,427 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 13:53:58,428 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:58,435 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:58,437 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:58,440 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:58,443 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:58,445 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:58,447 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:58,449 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:58,514 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 13:53:58,517 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-26 13:53:58,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,524 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-26 13:53:58,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:53:58,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:53:58,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:53:58,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:53:58,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:53:58,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 13:53:58,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 13:53:58,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:53:58,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:58,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,586 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:53:58,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-26 13:53:58,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:53:58,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:53:58,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:53:58,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:53:58,606 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 13:53:58,606 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 13:53:58,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:53:58,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-07-26 13:53:58,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,628 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-26 13:53:58,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:53:58,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:53:58,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 13:53:58,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:53:58,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:53:58,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:53:58,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 13:53:58,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 13:53:58,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:53:58,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:58,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,661 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-26 13:53:58,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:53:58,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:53:58,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:53:58,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:53:58,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:53:58,679 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 13:53:58,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 13:53:58,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:53:58,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:58,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,723 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-26 13:53:58,725 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:53:58,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:53:58,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 13:53:58,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:53:58,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:53:58,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:53:58,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 13:53:58,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 13:53:58,741 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:53:58,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:58,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,766 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-26 13:53:58,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:53:58,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:53:58,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 13:53:58,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:53:58,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:53:58,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:53:58,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 13:53:58,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 13:53:58,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:53:58,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:58,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,801 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-26 13:53:58,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:53:58,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:53:58,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:53:58,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:53:58,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:53:58,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 13:53:58,813 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 13:53:58,831 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:53:58,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:58,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,858 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-26 13:53:58,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:53:58,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:53:58,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 13:53:58,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:53:58,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:53:58,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:53:58,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 13:53:58,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 13:53:58,883 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-26 13:53:58,896 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-26 13:53:58,896 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-26 13:53:58,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:58,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:58,900 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:58,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-26 13:53:58,939 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-26 13:53:58,940 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-26 13:53:58,940 INFO L513 LassoAnalysis]: Proved termination. [2022-07-26 13:53:58,940 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~N~0, thread1Thread1of1ForFork1_~i~0) = 1*~N~0 - 1*thread1Thread1of1ForFork1_~i~0 Supporting invariants [] [2022-07-26 13:53:58,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:58,960 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-26 13:53:58,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:53:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 13:53:59,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-26 13:53:59,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 13:53:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 13:53:59,024 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-26 13:53:59,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 13:53:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-26 13:53:59,054 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-26 13:53:59,056 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 33 states, but on-demand construction may add more states Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-07-26 13:53:59,111 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 33 states, but on-demand construction may add more states. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) Result 84 states and 231 transitions. Complement of second has 5 states. [2022-07-26 13:53:59,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-26 13:53:59,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-07-26 13:53:59,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2022-07-26 13:53:59,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 3 letters. Loop has 1 letters. [2022-07-26 13:53:59,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:53:59,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 4 letters. Loop has 1 letters. [2022-07-26 13:53:59,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:53:59,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 3 letters. Loop has 2 letters. [2022-07-26 13:53:59,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:53:59,121 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 231 transitions. [2022-07-26 13:53:59,127 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 8 [2022-07-26 13:53:59,132 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 49 states and 131 transitions. [2022-07-26 13:53:59,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2022-07-26 13:53:59,134 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2022-07-26 13:53:59,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 131 transitions. [2022-07-26 13:53:59,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-26 13:53:59,134 INFO L220 hiAutomatonCegarLoop]: Abstraction has 49 states and 131 transitions. [2022-07-26 13:53:59,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 131 transitions. [2022-07-26 13:53:59,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 40. [2022-07-26 13:53:59,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 2.8) internal successors, (112), 39 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-26 13:53:59,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 112 transitions. [2022-07-26 13:53:59,160 INFO L242 hiAutomatonCegarLoop]: Abstraction has 40 states and 112 transitions. [2022-07-26 13:53:59,161 INFO L426 stractBuchiCegarLoop]: Abstraction has 40 states and 112 transitions. [2022-07-26 13:53:59,161 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-26 13:53:59,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 112 transitions. [2022-07-26 13:53:59,163 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 8 [2022-07-26 13:53:59,163 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 13:53:59,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 13:53:59,163 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-26 13:53:59,163 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-26 13:53:59,164 INFO L733 eck$LassoCheckResult]: Stem: 274#[ULTIMATE.startENTRY]don't care [290] ULTIMATE.startENTRY-->L67-3: Formula: (let ((.cse0 (select |v_#memory_int_44| 1)) (.cse1 (store |v_#valid_97| |v_ULTIMATE.start_main_~#t1~0#1.base_45| 1))) (and (= (select |v_#valid_97| 2) 1) (= v_~counter~0_94 0) (= (select |v_#valid_97| 1) 1) (= |v_#memory_int_43| (store |v_#memory_int_44| |v_ULTIMATE.start_main_~#t1~0#1.base_45| (store (select |v_#memory_int_44| |v_ULTIMATE.start_main_~#t1~0#1.base_45|) |v_ULTIMATE.start_main_~#t1~0#1.offset_35| |v_ULTIMATE.start_main_#t~pre6#1_27|))) (= (select |v_#length_58| 1) 2) (= |v_ULTIMATE.start_main_~#t2~0#1.offset_41| 0) (< 0 |v_#StackHeapBarrier_22|) (= 48 (select .cse0 0)) (= (select |v_#valid_97| 0) 0) (= |v_ULTIMATE.start_main_#t~pre6#1_27| |v_#pthreadsForks_36|) (= (select .cse0 1) 0) (= (select |v_#valid_97| |v_ULTIMATE.start_main_~#t1~0#1.base_45|) 0) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_35| 0) (= (select |v_#length_58| 2) 21) (= |v_#NULL.offset_8| 0) (= (select .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_51|) 0) (< |v_#StackHeapBarrier_22| |v_ULTIMATE.start_main_~#t2~0#1.base_51|) (= (store (store |v_#length_58| |v_ULTIMATE.start_main_~#t1~0#1.base_45| 4) |v_ULTIMATE.start_main_~#t2~0#1.base_51| 4) |v_#length_57|) (= |v_#NULL.base_8| 0) (< |v_#StackHeapBarrier_22| |v_ULTIMATE.start_main_~#t1~0#1.base_45|) (= |v_#valid_96| (store .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_51| 1)) (= |v_#pthreadsForks_35| (+ |v_#pthreadsForks_36| 1)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_22|, #pthreadsForks=|v_#pthreadsForks_36|, #valid=|v_#valid_97|, #memory_int=|v_#memory_int_44|, #length=|v_#length_58|} OutVars{~counter~0=v_~counter~0_94, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_27|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_41|, ULTIMATE.start_main_#t~nondet9#1=|v_ULTIMATE.start_main_#t~nondet9#1_13|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_30|, ULTIMATE.start_main_#t~pre8#1=|v_ULTIMATE.start_main_#t~pre8#1_23|, #NULL.offset=|v_#NULL.offset_8|, ~N~0=v_~N~0_39, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_45|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_35|, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|, #NULL.base=|v_#NULL.base_8|, #StackHeapBarrier=|v_#StackHeapBarrier_22|, #pthreadsForks=|v_#pthreadsForks_35|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_24|, #valid=|v_#valid_96|, ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_13|, #memory_int=|v_#memory_int_43|, ULTIMATE.start_main_#t~mem11#1=|v_ULTIMATE.start_main_#t~mem11#1_24|, #length=|v_#length_57|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_51|} AuxVars[] AssignedVars[~counter~0, ULTIMATE.start_main_#t~pre6#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet9#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~pre8#1, #NULL.offset, ~N~0, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_#t~mem10#1, #NULL.base, #pthreadsForks, ULTIMATE.start_main_#t~nondet5#1, #valid, ULTIMATE.start_main_#t~nondet7#1, #memory_int, ULTIMATE.start_main_#t~mem11#1, #length, ULTIMATE.start_main_~#t2~0#1.base] 276#[L67-3]don't care [223] L67-3-->thread1ENTRY: Formula: (and (= |v_ULTIMATE.start_main_#t~pre6#1_6| v_thread1Thread1of1ForFork1_thidvar0_2) (= 0 v_thread1Thread1of1ForFork1_thidvar1_2)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_6|} OutVars{thread1Thread1of1ForFork1_#res.base=|v_thread1Thread1of1ForFork1_#res.base_4|, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_6|, thread1Thread1of1ForFork1_#t~post1=|v_thread1Thread1of1ForFork1_#t~post1_8|, thread1Thread1of1ForFork1_#t~post2=|v_thread1Thread1of1ForFork1_#t~post2_4|, thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_12, thread1Thread1of1ForFork1_#res.offset=|v_thread1Thread1of1ForFork1_#res.offset_4|, thread1Thread1of1ForFork1_thidvar1=v_thread1Thread1of1ForFork1_thidvar1_2, thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_#res.base, thread1Thread1of1ForFork1_#t~post1, thread1Thread1of1ForFork1_#t~post2, thread1Thread1of1ForFork1_~i~0, thread1Thread1of1ForFork1_#res.offset, thread1Thread1of1ForFork1_thidvar1, thread1Thread1of1ForFork1_thidvar0] 332#[L67-4, thread1ENTRY]don't care [280] L67-4-->L68-3: Formula: (and (= (select |v_#valid_74| |v_ULTIMATE.start_main_~#t2~0#1.base_33|) 1) (= (store |v_#memory_int_34| |v_ULTIMATE.start_main_~#t2~0#1.base_33| (store (select |v_#memory_int_34| |v_ULTIMATE.start_main_~#t2~0#1.base_33|) |v_ULTIMATE.start_main_~#t2~0#1.offset_27| |v_ULTIMATE.start_main_#t~pre8#1_19|)) |v_#memory_int_33|) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_27|) (= (+ |v_#pthreadsForks_28| 1) |v_#pthreadsForks_27|) (= |v_ULTIMATE.start_main_#t~pre8#1_19| |v_#pthreadsForks_28|) (<= (+ |v_ULTIMATE.start_main_~#t2~0#1.offset_27| 4) (select |v_#length_47| |v_ULTIMATE.start_main_~#t2~0#1.base_33|))) InVars {#pthreadsForks=|v_#pthreadsForks_28|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_27|, #valid=|v_#valid_74|, #memory_int=|v_#memory_int_34|, #length=|v_#length_47|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_33|} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_21|, #pthreadsForks=|v_#pthreadsForks_27|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_27|, #valid=|v_#valid_74|, ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_9|, #memory_int=|v_#memory_int_33|, ULTIMATE.start_main_#t~pre8#1=|v_ULTIMATE.start_main_#t~pre8#1_19|, #length=|v_#length_47|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_33|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1, #pthreadsForks, ULTIMATE.start_main_#t~nondet7#1, #memory_int, ULTIMATE.start_main_#t~pre8#1] 278#[thread1ENTRY, L68-3]don't care [220] L68-3-->thread2ENTRY: Formula: (and (= |v_ULTIMATE.start_main_#t~pre8#1_6| v_thread2Thread1of1ForFork0_thidvar0_2) (= v_thread2Thread1of1ForFork0_thidvar2_2 0) (= v_thread2Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre8#1=|v_ULTIMATE.start_main_#t~pre8#1_6|} OutVars{thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_4|, thread2Thread1of1ForFork0_#res#1.base=|v_thread2Thread1of1ForFork0_#res#1.base_4|, thread2Thread1of1ForFork0_#res#1.offset=|v_thread2Thread1of1ForFork0_#res#1.offset_4|, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_4|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_2, ULTIMATE.start_main_#t~pre8#1=|v_ULTIMATE.start_main_#t~pre8#1_6|, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_12|, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2, thread2Thread1of1ForFork0_#t~post3#1=|v_thread2Thread1of1ForFork0_#t~post3#1_8|, thread2Thread1of1ForFork0_#t~post4#1=|v_thread2Thread1of1ForFork0_#t~post4#1_4|} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1, thread2Thread1of1ForFork0_#res#1.base, thread2Thread1of1ForFork0_#res#1.offset, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1, thread2Thread1of1ForFork0_thidvar2, thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_~i~1#1, thread2Thread1of1ForFork0_thidvar0, thread2Thread1of1ForFork0_#t~post3#1, thread2Thread1of1ForFork0_#t~post4#1] 282#[L68-4, thread2ENTRY, thread1ENTRY]don't care [208] thread2ENTRY-->L51-4: Formula: (= |v_thread2Thread1of1ForFork0_~i~1#1_1| 0) InVars {} OutVars{thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_1|} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_~i~1#1] 314#[L68-4, L51-4, thread1ENTRY]don't care [2022-07-26 13:53:59,164 INFO L735 eck$LassoCheckResult]: Loop: 314#[L68-4, L51-4, thread1ENTRY]don't care [281] L51-4-->L51-4: Formula: (and (= (+ v_~counter~0_88 1) v_~counter~0_89) (= |v_thread2Thread1of1ForFork0_~i~1#1_31| (+ |v_thread2Thread1of1ForFork0_~i~1#1_32| 1)) (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_13| |v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_13|) (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_13| (ite (< 0 v_~counter~0_89) 1 0)) (< |v_thread2Thread1of1ForFork0_~i~1#1_32| v_~N~0_33) (not (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_13| 0))) InVars {~counter~0=v_~counter~0_89, thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_32|, ~N~0=v_~N~0_33} OutVars{~counter~0=v_~counter~0_88, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_13|, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_13|, thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_31|, thread2Thread1of1ForFork0_#t~post3#1=|v_thread2Thread1of1ForFork0_#t~post3#1_15|, ~N~0=v_~N~0_33, thread2Thread1of1ForFork0_#t~post4#1=|v_thread2Thread1of1ForFork0_#t~post4#1_13|} AuxVars[] AssignedVars[~counter~0, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1, thread2Thread1of1ForFork0_~i~1#1, thread2Thread1of1ForFork0_#t~post3#1, thread2Thread1of1ForFork0_#t~post4#1] 314#[L68-4, L51-4, thread1ENTRY]don't care [2022-07-26 13:53:59,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:53:59,164 INFO L85 PathProgramCache]: Analyzing trace with hash 303369742, now seen corresponding path program 1 times [2022-07-26 13:53:59,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:53:59,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433260702] [2022-07-26 13:53:59,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:53:59,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:53:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:53:59,180 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:53:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:53:59,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:53:59,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:53:59,197 INFO L85 PathProgramCache]: Analyzing trace with hash 312, now seen corresponding path program 1 times [2022-07-26 13:53:59,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:53:59,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653550062] [2022-07-26 13:53:59,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:53:59,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:53:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:53:59,204 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:53:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:53:59,209 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:53:59,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:53:59,210 INFO L85 PathProgramCache]: Analyzing trace with hash 814527691, now seen corresponding path program 1 times [2022-07-26 13:53:59,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:53:59,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391869152] [2022-07-26 13:53:59,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:53:59,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:53:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 13:53:59,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-26 13:53:59,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-26 13:53:59,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391869152] [2022-07-26 13:53:59,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391869152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-26 13:53:59,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-26 13:53:59,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-26 13:53:59,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690847844] [2022-07-26 13:53:59,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-26 13:53:59,338 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 13:53:59,338 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 13:53:59,338 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 13:53:59,338 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 13:53:59,338 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-26 13:53:59,338 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:59,338 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 13:53:59,338 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 13:53:59,338 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-figure1.wvr.c_BEv2_Iteration2_Loop [2022-07-26 13:53:59,338 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 13:53:59,338 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 13:53:59,341 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,343 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,345 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,347 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,351 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,359 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,368 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,371 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,373 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,449 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 13:53:59,450 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-26 13:53:59,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:59,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:59,452 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:59,459 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:53:59,459 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:59,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-26 13:53:59,480 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:53:59,480 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread1.base_3=-1} Honda state: {v_rep#funAddr~thread1.base_3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:53:59,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:59,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:59,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:59,506 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:59,514 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:53:59,514 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:59,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-26 13:53:59,531 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:53:59,532 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread2.base_3=-1} Honda state: {v_rep#funAddr~thread2.base_3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:53:59,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:59,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:59,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:59,559 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:59,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-26 13:53:59,562 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:53:59,562 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:59,583 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:53:59,584 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_#t~post3#1=0} Honda state: {thread2Thread1of1ForFork0_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:53:59,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:59,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:59,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:59,608 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:59,611 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:53:59,612 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:59,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-26 13:53:59,635 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:53:59,636 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1=1, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1=1} Honda state: {thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1=1, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:53:59,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:59,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:59,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:59,662 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:59,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-26 13:53:59,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:53:59,664 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:59,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:59,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:59,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:59,713 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:59,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-26 13:53:59,716 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-26 13:53:59,716 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:53:59,884 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-26 13:53:59,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-07-26 13:53:59,890 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 13:53:59,890 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 13:53:59,890 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 13:53:59,890 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 13:53:59,890 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-26 13:53:59,890 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:59,890 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 13:53:59,890 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 13:53:59,890 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-figure1.wvr.c_BEv2_Iteration2_Loop [2022-07-26 13:53:59,890 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 13:53:59,890 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 13:53:59,891 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,895 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,899 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,901 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,903 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,908 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,913 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,917 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,919 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:53:59,981 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 13:53:59,982 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-26 13:53:59,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:53:59,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:53:59,983 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:53:59,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:53:59,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:53:59,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:53:59,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:53:59,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:54:00,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 13:54:00,001 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 13:53:59,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-26 13:54:00,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:54:00,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-07-26 13:54:00,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:54:00,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:54:00,043 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:54:00,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-26 13:54:00,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:54:00,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:54:00,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 13:54:00,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:54:00,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:54:00,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:54:00,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 13:54:00,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 13:54:00,067 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:54:00,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-07-26 13:54:00,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:54:00,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:54:00,094 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:54:00,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-26 13:54:00,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:54:00,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:54:00,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:54:00,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:54:00,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:54:00,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 13:54:00,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 13:54:00,112 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:54:00,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-07-26 13:54:00,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:54:00,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:54:00,128 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:54:00,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-26 13:54:00,130 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:54:00,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:54:00,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 13:54:00,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:54:00,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:54:00,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:54:00,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 13:54:00,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 13:54:00,143 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:54:00,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-07-26 13:54:00,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:54:00,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:54:00,159 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:54:00,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-26 13:54:00,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:54:00,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:54:00,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 13:54:00,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:54:00,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:54:00,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:54:00,171 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 13:54:00,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 13:54:00,191 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-26 13:54:00,213 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-26 13:54:00,214 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-26 13:54:00,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:54:00,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:54:00,217 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:54:00,219 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-26 13:54:00,220 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-26 13:54:00,220 INFO L513 LassoAnalysis]: Proved termination. [2022-07-26 13:54:00,220 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread2Thread1of1ForFork0_~i~1#1, ~N~0) = -1*thread2Thread1of1ForFork0_~i~1#1 + 1*~N~0 Supporting invariants [] [2022-07-26 13:54:00,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-26 13:54:00,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-07-26 13:54:00,246 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-26 13:54:00,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:54:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 13:54:00,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-26 13:54:00,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 13:54:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 13:54:00,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-26 13:54:00,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 13:54:00,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-26 13:54:00,294 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-26 13:54:00,294 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 112 transitions. cyclomatic complexity: 86 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-07-26 13:54:00,324 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 112 transitions. cyclomatic complexity: 86. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) Result 83 states and 220 transitions. Complement of second has 4 states. [2022-07-26 13:54:00,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-26 13:54:00,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-07-26 13:54:00,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2022-07-26 13:54:00,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 5 letters. Loop has 1 letters. [2022-07-26 13:54:00,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:54:00,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 6 letters. Loop has 1 letters. [2022-07-26 13:54:00,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:54:00,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-26 13:54:00,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:54:00,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 220 transitions. [2022-07-26 13:54:00,329 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-26 13:54:00,329 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 0 states and 0 transitions. [2022-07-26 13:54:00,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-26 13:54:00,330 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-26 13:54:00,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-26 13:54:00,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-26 13:54:00,330 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 13:54:00,330 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 13:54:00,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-26 13:54:00,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-26 13:54:00,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-26 13:54:00,333 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-07-26 13:54:00,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-26 13:54:00,334 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-07-26 13:54:00,335 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-07-26 13:54:00,335 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-26 13:54:00,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-07-26 13:54:00,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-26 13:54:00,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-26 13:54:00,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-26 13:54:00,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-26 13:54:00,335 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 13:54:00,335 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 13:54:00,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-26 13:54:00,336 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 13:54:00,336 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-26 13:54:00,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-26 13:54:00,336 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-26 13:54:00,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-26 13:54:00,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.07 01:54:00 BoogieIcfgContainer [2022-07-26 13:54:00,341 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-26 13:54:00,342 INFO L158 Benchmark]: Toolchain (without parser) took 5427.97ms. Allocated memory was 184.5MB in the beginning and 229.6MB in the end (delta: 45.1MB). Free memory was 129.6MB in the beginning and 78.7MB in the end (delta: 50.9MB). Peak memory consumption was 97.0MB. Max. memory is 8.0GB. [2022-07-26 13:54:00,342 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 184.5MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-26 13:54:00,342 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.69ms. Allocated memory was 184.5MB in the beginning and 229.6MB in the end (delta: 45.1MB). Free memory was 129.4MB in the beginning and 202.8MB in the end (delta: -73.4MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-07-26 13:54:00,343 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.78ms. Allocated memory is still 229.6MB. Free memory was 202.8MB in the beginning and 201.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-26 13:54:00,343 INFO L158 Benchmark]: Boogie Preprocessor took 20.56ms. Allocated memory is still 229.6MB. Free memory was 201.3MB in the beginning and 200.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-26 13:54:00,343 INFO L158 Benchmark]: RCFGBuilder took 297.57ms. Allocated memory is still 229.6MB. Free memory was 200.2MB in the beginning and 186.1MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-07-26 13:54:00,344 INFO L158 Benchmark]: BuchiAutomizer took 4848.85ms. Allocated memory is still 229.6MB. Free memory was 186.1MB in the beginning and 78.7MB in the end (delta: 107.4MB). Peak memory consumption was 108.4MB. Max. memory is 8.0GB. [2022-07-26 13:54:00,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 184.5MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 224.69ms. Allocated memory was 184.5MB in the beginning and 229.6MB in the end (delta: 45.1MB). Free memory was 129.4MB in the beginning and 202.8MB in the end (delta: -73.4MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.78ms. Allocated memory is still 229.6MB. Free memory was 202.8MB in the beginning and 201.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.56ms. Allocated memory is still 229.6MB. Free memory was 201.3MB in the beginning and 200.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 297.57ms. Allocated memory is still 229.6MB. Free memory was 200.2MB in the beginning and 186.1MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 4848.85ms. Allocated memory is still 229.6MB. Free memory was 186.1MB in the beginning and 78.7MB in the end (delta: 107.4MB). Peak memory consumption was 108.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + N and consists of 4 locations. One deterministic module has affine ranking function N + -1 * i and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 6 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax229 hnf100 lsp23 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 1.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 75 PlacesBefore, 20 PlacesAfterwards, 73 TransitionsBefore, 15 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 5 FixpointIterations, 37 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 66 TotalNumberOfCompositions, 486 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 479, positive: 477, positive conditional: 0, positive unconditional: 477, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 349, positive: 347, positive conditional: 0, positive unconditional: 347, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 349, positive: 346, positive conditional: 0, positive unconditional: 346, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 479, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 349, unknown conditional: 0, unknown unconditional: 349] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2022-07-26 13:54:00,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-07-26 13:54:00,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-07-26 13:54:00,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...