/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-syntacticLbe.epf -i ../../../trunk/examples/svcomp/weaver/popl20-figure1-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-0d686a6 [2022-07-26 14:15:55,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-26 14:15:55,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-26 14:15:55,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-26 14:15:55,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-26 14:15:55,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-26 14:15:55,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-26 14:15:55,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-26 14:15:55,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-26 14:15:55,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-26 14:15:55,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-26 14:15:55,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-26 14:15:55,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-26 14:15:55,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-26 14:15:55,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-26 14:15:55,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-26 14:15:55,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-26 14:15:55,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-26 14:15:55,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-26 14:15:55,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-26 14:15:55,147 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-26 14:15:55,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-26 14:15:55,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-26 14:15:55,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-26 14:15:55,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-26 14:15:55,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-26 14:15:55,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-26 14:15:55,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-26 14:15:55,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-26 14:15:55,163 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-syntacticLbe.epf [2022-07-26 14:15:55,184 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-26 14:15:55,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-26 14:15:55,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-26 14:15:55,185 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-26 14:15:55,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-26 14:15:55,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-26 14:15:55,185 INFO L138 SettingsManager]: * Use SBE=true [2022-07-26 14:15:55,185 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-26 14:15:55,186 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-26 14:15:55,186 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-26 14:15:55,186 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-26 14:15:55,186 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-26 14:15:55,186 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-26 14:15:55,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-26 14:15:55,187 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-26 14:15:55,187 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-26 14:15:55,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-26 14:15:55,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-26 14:15:55,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-26 14:15:55,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-26 14:15:55,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-26 14:15:55,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-26 14:15:55,188 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-26 14:15:55,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-26 14:15:55,188 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-26 14:15:55,188 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-26 14:15:55,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-26 14:15:55,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-26 14:15:55,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-26 14:15:55,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-26 14:15:55,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-26 14:15:55,189 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-07-26 14:15:55,190 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-26 14:15:55,190 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-26 14:15:55,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-26 14:15:55,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-26 14:15:55,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-26 14:15:55,399 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-26 14:15:55,401 INFO L275 PluginConnector]: CDTParser initialized [2022-07-26 14:15:55,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-figure1-alt.wvr.c [2022-07-26 14:15:55,443 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c86475ff0/e2dc34ab201c4c1094511dcab19166a8/FLAGe17084c69 [2022-07-26 14:15:55,764 INFO L306 CDTParser]: Found 1 translation units. [2022-07-26 14:15:55,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure1-alt.wvr.c [2022-07-26 14:15:55,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c86475ff0/e2dc34ab201c4c1094511dcab19166a8/FLAGe17084c69 [2022-07-26 14:15:56,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c86475ff0/e2dc34ab201c4c1094511dcab19166a8 [2022-07-26 14:15:56,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-26 14:15:56,198 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-26 14:15:56,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-26 14:15:56,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-26 14:15:56,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-26 14:15:56,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 02:15:56" (1/1) ... [2022-07-26 14:15:56,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26956c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:15:56, skipping insertion in model container [2022-07-26 14:15:56,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 02:15:56" (1/1) ... [2022-07-26 14:15:56,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-26 14:15:56,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-26 14:15:56,456 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-alt.wvr.c[2087,2100] [2022-07-26 14:15:56,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 14:15:56,465 INFO L203 MainTranslator]: Completed pre-run [2022-07-26 14:15:56,480 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-alt.wvr.c[2087,2100] [2022-07-26 14:15:56,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 14:15:56,493 INFO L208 MainTranslator]: Completed translation [2022-07-26 14:15:56,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:15:56 WrapperNode [2022-07-26 14:15:56,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-26 14:15:56,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-26 14:15:56,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-26 14:15:56,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-26 14:15:56,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:15:56" (1/1) ... [2022-07-26 14:15:56,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:15:56" (1/1) ... [2022-07-26 14:15:56,525 INFO L137 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2022-07-26 14:15:56,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-26 14:15:56,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-26 14:15:56,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-26 14:15:56,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-26 14:15:56,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:15:56" (1/1) ... [2022-07-26 14:15:56,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:15:56" (1/1) ... [2022-07-26 14:15:56,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:15:56" (1/1) ... [2022-07-26 14:15:56,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:15:56" (1/1) ... [2022-07-26 14:15:56,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:15:56" (1/1) ... [2022-07-26 14:15:56,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:15:56" (1/1) ... [2022-07-26 14:15:56,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:15:56" (1/1) ... [2022-07-26 14:15:56,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-26 14:15:56,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-26 14:15:56,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-26 14:15:56,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-26 14:15:56,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:15:56" (1/1) ... [2022-07-26 14:15:56,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:15:56,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:15:56,592 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 14:15:56,628 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 14:15:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-26 14:15:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-26 14:15:56,639 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-26 14:15:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-26 14:15:56,639 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-26 14:15:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-26 14:15:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-26 14:15:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-26 14:15:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-26 14:15:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-26 14:15:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-26 14:15:56,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-26 14:15:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-26 14:15:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-26 14:15:56,641 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 14:15:56,704 INFO L234 CfgBuilder]: Building ICFG [2022-07-26 14:15:56,706 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-26 14:15:56,817 INFO L275 CfgBuilder]: Performing block encoding [2022-07-26 14:15:56,842 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-26 14:15:56,842 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-26 14:15:56,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 02:15:56 BoogieIcfgContainer [2022-07-26 14:15:56,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-26 14:15:56,845 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-26 14:15:56,845 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-26 14:15:56,847 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-26 14:15:56,848 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:15:56,848 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.07 02:15:56" (1/3) ... [2022-07-26 14:15:56,848 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5da7bd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 02:15:56, skipping insertion in model container [2022-07-26 14:15:56,849 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:15:56,849 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:15:56" (2/3) ... [2022-07-26 14:15:56,849 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5da7bd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 02:15:56, skipping insertion in model container [2022-07-26 14:15:56,849 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:15:56,849 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 02:15:56" (3/3) ... [2022-07-26 14:15:56,850 INFO L322 chiAutomizerObserver]: Analyzing ICFG popl20-figure1-alt.wvr.c [2022-07-26 14:15:56,918 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-26 14:15:56,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 88 transitions, 192 flow [2022-07-26 14:15:57,004 INFO L129 PetriNetUnfolder]: 6/84 cut-off events. [2022-07-26 14:15:57,004 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-26 14:15:57,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 84 events. 6/84 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2022-07-26 14:15:57,007 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 88 transitions, 192 flow [2022-07-26 14:15:57,020 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 84 transitions, 180 flow [2022-07-26 14:15:57,022 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-07-26 14:15:57,029 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 84 transitions, 180 flow [2022-07-26 14:15:57,033 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 84 transitions, 180 flow [2022-07-26 14:15:57,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 84 transitions, 180 flow [2022-07-26 14:15:57,057 INFO L129 PetriNetUnfolder]: 6/84 cut-off events. [2022-07-26 14:15:57,058 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-26 14:15:57,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 84 events. 6/84 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2022-07-26 14:15:57,059 INFO L116 LiptonReduction]: Number of co-enabled transitions 500 [2022-07-26 14:15:58,978 INFO L131 LiptonReduction]: Checked pairs total: 527 [2022-07-26 14:15:58,978 INFO L133 LiptonReduction]: Total number of compositions: 82 [2022-07-26 14:15:58,990 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2022-07-26 14:15:58,990 INFO L302 stractBuchiCegarLoop]: Hoare is false [2022-07-26 14:15:58,991 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-26 14:15:58,991 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-26 14:15:58,991 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-26 14:15:58,991 INFO L306 stractBuchiCegarLoop]: Difference is false [2022-07-26 14:15:58,991 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-26 14:15:58,991 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-26 14:15:58,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-26 14:15:59,011 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 14 [2022-07-26 14:15:59,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 14:15:59,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 14:15:59,015 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-26 14:15:59,015 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-26 14:15:59,015 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-26 14:15:59,015 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 33 states, but on-demand construction may add more states [2022-07-26 14:15:59,017 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 14 [2022-07-26 14:15:59,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 14:15:59,018 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 14:15:59,018 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-26 14:15:59,018 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-26 14:15:59,021 INFO L733 eck$LassoCheckResult]: Stem: 90#[ULTIMATE.startENTRY]don't care [330] ULTIMATE.startENTRY-->L70-3: Formula: (let ((.cse0 (select |v_#memory_int_44| 1)) (.cse1 (store |v_#valid_105| |v_ULTIMATE.start_main_~#t1~0#1.base_47| 1))) (and (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_49| 0)) (= |v_#NULL.base_10| 0) (= |v_ULTIMATE.start_main_~#t2~0#1.offset_35| 0) (= |v_#pthreadsForks_39| (+ |v_#pthreadsForks_40| 1)) (= 2 (select |v_#length_66| 1)) (= |v_#length_65| (store (store |v_#length_66| |v_ULTIMATE.start_main_~#t1~0#1.base_47| 4) |v_ULTIMATE.start_main_~#t2~0#1.base_45| 4)) (< 0 |v_#StackHeapBarrier_22|) (= 48 (select .cse0 0)) (< |v_#StackHeapBarrier_22| |v_ULTIMATE.start_main_~#t2~0#1.base_45|) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_49| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_37|) (= (store .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_45| 1) |v_#valid_104|) (= (select |v_#valid_105| 1) 1) (= |v_#memory_int_43| (store |v_#memory_int_44| |v_ULTIMATE.start_main_~#t1~0#1.base_47| (store (select |v_#memory_int_44| |v_ULTIMATE.start_main_~#t1~0#1.base_47|) |v_ULTIMATE.start_main_~#t1~0#1.offset_41| |v_ULTIMATE.start_main_#t~pre7#1_35|))) (< |v_#StackHeapBarrier_22| |v_ULTIMATE.start_main_~#t1~0#1.base_47|) (= (select .cse0 1) 0) (= |v_ULTIMATE.start_main_#t~pre7#1_35| |v_#pthreadsForks_40|) (= 25 (select |v_#length_66| 2)) (= (ite (and (<= 0 v_~N1~0_49) (<= 0 v_~N2~0_45)) 1 0) |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_37|) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_41| 0) (= (select |v_#valid_105| 0) 0) (= (select |v_#valid_105| 2) 1) (= (select .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_45|) 0) (= |v_#NULL.offset_10| 0) (= (select |v_#valid_105| |v_ULTIMATE.start_main_~#t1~0#1.base_47|) 0) (= v_~counter~0_80 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_22|, #pthreadsForks=|v_#pthreadsForks_40|, #valid=|v_#valid_105|, #memory_int=|v_#memory_int_44|, #length=|v_#length_66|} OutVars{ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_35|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_25|, #NULL.offset=|v_#NULL.offset_10|, ~N2~0=v_~N2~0_45, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_41|, ULTIMATE.start_main_#t~mem12#1=|v_ULTIMATE.start_main_#t~mem12#1_24|, #pthreadsForks=|v_#pthreadsForks_39|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_49|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_26|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_35|, #length=|v_#length_65|, ~counter~0=v_~counter~0_80, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_17|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_34|, ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_40|, ~N1~0=v_~N1~0_49, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_47|, #NULL.base=|v_#NULL.base_10|, #StackHeapBarrier=|v_#StackHeapBarrier_22|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_19|, #valid=|v_#valid_104|, #memory_int=|v_#memory_int_43|, ULTIMATE.start_main_#t~mem11#1=|v_ULTIMATE.start_main_#t~mem11#1_22|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_45|, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_37|} AuxVars[] AssignedVars[~counter~0, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet6#1, #NULL.offset, ~N2~0, ~N1~0, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_#t~mem12#1, #NULL.base, #pthreadsForks, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet8#1, #valid, #memory_int, ULTIMATE.start_main_#t~mem11#1, ULTIMATE.start_main_#t~pre7#1, #length, ULTIMATE.start_main_~#t2~0#1.base, ULTIMATE.start_assume_abort_if_not_#in~cond#1] 93#[L70-3]don't care [249] L70-3-->thread1ENTRY: Formula: (and (= |v_ULTIMATE.start_main_#t~pre7#1_6| v_thread1Thread1of1ForFork1_thidvar0_2) (= 0 v_thread1Thread1of1ForFork1_thidvar1_2)) InVars {ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} OutVars{thread1Thread1of1ForFork1_#res.base=|v_thread1Thread1of1ForFork1_#res.base_4|, 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|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|, 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] 95#[thread1ENTRY, L70-4]don't care [224] 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] 97#[L41-4, L70-4]don't care [2022-07-26 14:15:59,021 INFO L735 eck$LassoCheckResult]: Loop: 97#[L41-4, L70-4]don't care [307] L41-4-->L41-4: Formula: (and (= v_thread1Thread1of1ForFork1_~i~0_23 (+ v_thread1Thread1of1ForFork1_~i~0_24 1)) (= (+ v_~counter~0_65 1) v_~counter~0_64) (< v_thread1Thread1of1ForFork1_~i~0_24 v_~N1~0_27)) InVars {~counter~0=v_~counter~0_65, thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_24, ~N1~0=v_~N1~0_27} OutVars{~counter~0=v_~counter~0_64, thread1Thread1of1ForFork1_#t~post1=|v_thread1Thread1of1ForFork1_#t~post1_17|, thread1Thread1of1ForFork1_#t~post2=|v_thread1Thread1of1ForFork1_#t~post2_9|, thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_23, ~N1~0=v_~N1~0_27} AuxVars[] AssignedVars[~counter~0, thread1Thread1of1ForFork1_#t~post1, thread1Thread1of1ForFork1_#t~post2, thread1Thread1of1ForFork1_~i~0] 97#[L41-4, L70-4]don't care [2022-07-26 14:15:59,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 14:15:59,024 INFO L85 PathProgramCache]: Analyzing trace with hash 354864, now seen corresponding path program 1 times [2022-07-26 14:15:59,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 14:15:59,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299932065] [2022-07-26 14:15:59,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 14:15:59,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 14:15:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:15:59,098 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 14:15:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:15:59,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 14:15:59,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 14:15:59,125 INFO L85 PathProgramCache]: Analyzing trace with hash 338, now seen corresponding path program 1 times [2022-07-26 14:15:59,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 14:15:59,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694610568] [2022-07-26 14:15:59,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 14:15:59,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 14:15:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:15:59,129 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 14:15:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:15:59,132 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 14:15:59,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 14:15:59,133 INFO L85 PathProgramCache]: Analyzing trace with hash 11001091, now seen corresponding path program 1 times [2022-07-26 14:15:59,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 14:15:59,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776198182] [2022-07-26 14:15:59,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 14:15:59,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 14:15:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:15:59,146 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 14:15:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:15:59,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 14:15:59,202 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 14:15:59,202 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 14:15:59,202 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 14:15:59,202 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 14:15:59,202 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-26 14:15:59,203 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:15:59,204 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 14:15:59,204 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 14:15:59,204 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-figure1-alt.wvr.c_BEv2_Iteration1_Loop [2022-07-26 14:15:59,204 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 14:15:59,204 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 14:15:59,215 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 14:15:59,219 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 14:15:59,224 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 14:15:59,225 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 14:15:59,227 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 14:15:59,228 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 14:15:59,231 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 14:15:59,234 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 14:15:59,283 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 14:15:59,283 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-26 14:15:59,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:15:59,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:15:59,286 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 14:15:59,287 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 14:15:59,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 14:15:59,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 14:15:59,311 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 14:15:59,311 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 14:15:59,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-26 14:15:59,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:15:59,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:15:59,328 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 14:15:59,331 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 14:15:59,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 14:15:59,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 14:15:59,364 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 14:15:59,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:15:59,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:15:59,366 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 14:15:59,367 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 14:15:59,368 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-26 14:15:59,368 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 14:15:59,477 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-26 14:15:59,480 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 14:15:59,480 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 14:15:59,481 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 14:15:59,481 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 14:15:59,481 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 14:15:59,481 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-26 14:15:59,481 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:15:59,481 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 14:15:59,481 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 14:15:59,481 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-figure1-alt.wvr.c_BEv2_Iteration1_Loop [2022-07-26 14:15:59,481 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 14:15:59,481 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 14:15:59,482 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 14:15:59,485 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 14:15:59,489 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 14:15:59,491 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 14:15:59,493 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 14:15:59,494 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 14:15:59,496 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 14:15:59,498 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 14:15:59,551 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 14:15:59,554 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-26 14:15:59,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:15:59,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:15:59,556 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 14:15:59,557 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 14:15:59,558 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 14:15:59,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 14:15:59,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 14:15:59,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 14:15:59,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 14:15:59,567 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 14:15:59,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 14:15:59,584 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 14:15:59,611 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 14:15:59,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:15:59,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:15:59,613 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 14:15:59,614 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 14:15:59,615 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 14:15:59,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 14:15:59,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 14:15:59,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 14:15:59,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 14:15:59,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 14:15:59,622 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 14:15:59,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 14:15:59,625 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-26 14:15:59,641 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-26 14:15:59,641 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-26 14:15:59,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:15:59,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:15:59,643 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 14:15:59,644 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 14:15:59,646 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-26 14:15:59,646 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-26 14:15:59,646 INFO L513 LassoAnalysis]: Proved termination. [2022-07-26 14:15:59,646 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread1Thread1of1ForFork1_~i~0, ~N1~0) = -1*thread1Thread1of1ForFork1_~i~0 + 1*~N1~0 Supporting invariants [] [2022-07-26 14:15:59,661 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 14:15:59,663 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-26 14:15:59,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 14:15:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 14:15:59,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-26 14:15:59,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 14:15:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 14:15:59,705 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-26 14:15:59,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 14:15:59,705 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 14:15:59,722 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 14:15:59,724 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 14:15:59,763 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 14:15:59,765 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 14:15:59,768 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 14:15:59,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2022-07-26 14:15:59,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 3 letters. Loop has 1 letters. [2022-07-26 14:15:59,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 14:15:59,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 4 letters. Loop has 1 letters. [2022-07-26 14:15:59,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 14:15:59,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 3 letters. Loop has 2 letters. [2022-07-26 14:15:59,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 14:15:59,771 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 231 transitions. [2022-07-26 14:15:59,774 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 8 [2022-07-26 14:15:59,778 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 49 states and 131 transitions. [2022-07-26 14:15:59,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2022-07-26 14:15:59,779 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2022-07-26 14:15:59,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 131 transitions. [2022-07-26 14:15:59,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-26 14:15:59,780 INFO L220 hiAutomatonCegarLoop]: Abstraction has 49 states and 131 transitions. [2022-07-26 14:15:59,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 131 transitions. [2022-07-26 14:15:59,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 40. [2022-07-26 14:15:59,796 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 14:15:59,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 112 transitions. [2022-07-26 14:15:59,797 INFO L242 hiAutomatonCegarLoop]: Abstraction has 40 states and 112 transitions. [2022-07-26 14:15:59,797 INFO L426 stractBuchiCegarLoop]: Abstraction has 40 states and 112 transitions. [2022-07-26 14:15:59,797 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-26 14:15:59,797 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 112 transitions. [2022-07-26 14:15:59,798 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 8 [2022-07-26 14:15:59,799 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 14:15:59,799 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 14:15:59,799 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-26 14:15:59,799 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-26 14:15:59,799 INFO L733 eck$LassoCheckResult]: Stem: 284#[ULTIMATE.startENTRY]don't care [330] ULTIMATE.startENTRY-->L70-3: Formula: (let ((.cse0 (select |v_#memory_int_44| 1)) (.cse1 (store |v_#valid_105| |v_ULTIMATE.start_main_~#t1~0#1.base_47| 1))) (and (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_49| 0)) (= |v_#NULL.base_10| 0) (= |v_ULTIMATE.start_main_~#t2~0#1.offset_35| 0) (= |v_#pthreadsForks_39| (+ |v_#pthreadsForks_40| 1)) (= 2 (select |v_#length_66| 1)) (= |v_#length_65| (store (store |v_#length_66| |v_ULTIMATE.start_main_~#t1~0#1.base_47| 4) |v_ULTIMATE.start_main_~#t2~0#1.base_45| 4)) (< 0 |v_#StackHeapBarrier_22|) (= 48 (select .cse0 0)) (< |v_#StackHeapBarrier_22| |v_ULTIMATE.start_main_~#t2~0#1.base_45|) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_49| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_37|) (= (store .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_45| 1) |v_#valid_104|) (= (select |v_#valid_105| 1) 1) (= |v_#memory_int_43| (store |v_#memory_int_44| |v_ULTIMATE.start_main_~#t1~0#1.base_47| (store (select |v_#memory_int_44| |v_ULTIMATE.start_main_~#t1~0#1.base_47|) |v_ULTIMATE.start_main_~#t1~0#1.offset_41| |v_ULTIMATE.start_main_#t~pre7#1_35|))) (< |v_#StackHeapBarrier_22| |v_ULTIMATE.start_main_~#t1~0#1.base_47|) (= (select .cse0 1) 0) (= |v_ULTIMATE.start_main_#t~pre7#1_35| |v_#pthreadsForks_40|) (= 25 (select |v_#length_66| 2)) (= (ite (and (<= 0 v_~N1~0_49) (<= 0 v_~N2~0_45)) 1 0) |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_37|) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_41| 0) (= (select |v_#valid_105| 0) 0) (= (select |v_#valid_105| 2) 1) (= (select .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_45|) 0) (= |v_#NULL.offset_10| 0) (= (select |v_#valid_105| |v_ULTIMATE.start_main_~#t1~0#1.base_47|) 0) (= v_~counter~0_80 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_22|, #pthreadsForks=|v_#pthreadsForks_40|, #valid=|v_#valid_105|, #memory_int=|v_#memory_int_44|, #length=|v_#length_66|} OutVars{ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_35|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_25|, #NULL.offset=|v_#NULL.offset_10|, ~N2~0=v_~N2~0_45, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_41|, ULTIMATE.start_main_#t~mem12#1=|v_ULTIMATE.start_main_#t~mem12#1_24|, #pthreadsForks=|v_#pthreadsForks_39|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_49|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_26|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_35|, #length=|v_#length_65|, ~counter~0=v_~counter~0_80, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_17|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_34|, ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_40|, ~N1~0=v_~N1~0_49, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_47|, #NULL.base=|v_#NULL.base_10|, #StackHeapBarrier=|v_#StackHeapBarrier_22|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_19|, #valid=|v_#valid_104|, #memory_int=|v_#memory_int_43|, ULTIMATE.start_main_#t~mem11#1=|v_ULTIMATE.start_main_#t~mem11#1_22|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_45|, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_37|} AuxVars[] AssignedVars[~counter~0, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet6#1, #NULL.offset, ~N2~0, ~N1~0, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_#t~mem12#1, #NULL.base, #pthreadsForks, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet8#1, #valid, #memory_int, ULTIMATE.start_main_#t~mem11#1, ULTIMATE.start_main_#t~pre7#1, #length, ULTIMATE.start_main_~#t2~0#1.base, ULTIMATE.start_assume_abort_if_not_#in~cond#1] 286#[L70-3]don't care [249] L70-3-->thread1ENTRY: Formula: (and (= |v_ULTIMATE.start_main_#t~pre7#1_6| v_thread1Thread1of1ForFork1_thidvar0_2) (= 0 v_thread1Thread1of1ForFork1_thidvar1_2)) InVars {ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} OutVars{thread1Thread1of1ForFork1_#res.base=|v_thread1Thread1of1ForFork1_#res.base_4|, 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|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|, 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] 278#[thread1ENTRY, L70-4]don't care [305] L70-4-->L71-3: Formula: (and (= (+ |v_#pthreadsForks_20| 1) |v_#pthreadsForks_19|) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_21|) (<= (+ |v_ULTIMATE.start_main_~#t2~0#1.offset_21| 4) (select |v_#length_41| |v_ULTIMATE.start_main_~#t2~0#1.base_25|)) (= |v_ULTIMATE.start_main_#t~pre9#1_17| |v_#pthreadsForks_20|) (= (select |v_#valid_60| |v_ULTIMATE.start_main_~#t2~0#1.base_25|) 1) (= |v_#memory_int_21| (store |v_#memory_int_22| |v_ULTIMATE.start_main_~#t2~0#1.base_25| (store (select |v_#memory_int_22| |v_ULTIMATE.start_main_~#t2~0#1.base_25|) |v_ULTIMATE.start_main_~#t2~0#1.offset_21| |v_ULTIMATE.start_main_#t~pre9#1_17|)))) InVars {#pthreadsForks=|v_#pthreadsForks_20|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_21|, #valid=|v_#valid_60|, #memory_int=|v_#memory_int_22|, #length=|v_#length_41|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_25|} OutVars{#pthreadsForks=|v_#pthreadsForks_19|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_17|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_21|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_11|, #valid=|v_#valid_60|, #memory_int=|v_#memory_int_21|, #length=|v_#length_41|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_17|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_25|} AuxVars[] AssignedVars[#pthreadsForks, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#t~nondet8#1, #memory_int, ULTIMATE.start_main_#t~pre7#1] 282#[thread1ENTRY, L71-3]don't care [246] L71-3-->thread2ENTRY: Formula: (and (= |v_ULTIMATE.start_main_#t~pre9#1_6| v_thread2Thread1of1ForFork0_thidvar0_2) (= v_thread2Thread1of1ForFork0_thidvar2_2 0) (= v_thread2Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#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|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_6|, 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, 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] 294#[thread2ENTRY, L71-4, thread1ENTRY]don't care [234] 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] 300#[L71-4, L51-4, thread1ENTRY]don't care [2022-07-26 14:15:59,800 INFO L735 eck$LassoCheckResult]: Loop: 300#[L71-4, L51-4, thread1ENTRY]don't care [313] L51-4-->L51-4: Formula: (and (= (+ |v_thread2Thread1of1ForFork0_~i~1#1_24| 1) |v_thread2Thread1of1ForFork0_~i~1#1_23|) (< |v_thread2Thread1of1ForFork0_~i~1#1_24| v_~N2~0_29) (not (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_9| 0)) (= (ite (< 0 v_~counter~0_73) 1 0) |v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_9|) (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_9| |v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_9|) (= v_~counter~0_73 (+ v_~counter~0_72 1))) InVars {~counter~0=v_~counter~0_73, thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_24|, ~N2~0=v_~N2~0_29} OutVars{~counter~0=v_~counter~0_72, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_9|, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_9|, thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_23|, thread2Thread1of1ForFork0_#t~post3#1=|v_thread2Thread1of1ForFork0_#t~post3#1_15|, ~N2~0=v_~N2~0_29, thread2Thread1of1ForFork0_#t~post4#1=|v_thread2Thread1of1ForFork0_#t~post4#1_9|} 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] 300#[L71-4, L51-4, thread1ENTRY]don't care [2022-07-26 14:15:59,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 14:15:59,800 INFO L85 PathProgramCache]: Analyzing trace with hash 341110005, now seen corresponding path program 1 times [2022-07-26 14:15:59,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 14:15:59,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035112841] [2022-07-26 14:15:59,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 14:15:59,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 14:15:59,853 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 14:15:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:15:59,854 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 14:15:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:15:59,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 14:15:59,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 14:15:59,868 INFO L85 PathProgramCache]: Analyzing trace with hash 344, now seen corresponding path program 1 times [2022-07-26 14:15:59,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 14:15:59,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725072770] [2022-07-26 14:15:59,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 14:15:59,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 14:15:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:15:59,872 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 14:15:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:15:59,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 14:15:59,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 14:15:59,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1984475876, now seen corresponding path program 1 times [2022-07-26 14:15:59,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 14:15:59,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303138110] [2022-07-26 14:15:59,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 14:15:59,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 14:15:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 14:15:59,913 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 14:15:59,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-26 14:15:59,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303138110] [2022-07-26 14:15:59,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303138110] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-26 14:15:59,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-26 14:15:59,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-26 14:15:59,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818758859] [2022-07-26 14:15:59,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-26 14:15:59,946 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 14:15:59,946 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 14:15:59,946 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 14:15:59,946 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 14:15:59,946 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-26 14:15:59,946 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:15:59,946 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 14:15:59,947 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 14:15:59,947 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-figure1-alt.wvr.c_BEv2_Iteration2_Loop [2022-07-26 14:15:59,947 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 14:15:59,947 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 14:15:59,948 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 14:15:59,949 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 14:15:59,951 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 14:15:59,953 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 14:15:59,954 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 14:15:59,958 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 14:15:59,961 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 14:15:59,963 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 14:15:59,966 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 14:16:00,022 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 14:16:00,022 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-26 14:16:00,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:16:00,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:16:00,039 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 14:16:00,043 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 14:16:00,044 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 14:16:00,044 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 14:16:00,055 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 14:16:00,055 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_#t~post4#1=0} Honda state: {thread2Thread1of1ForFork0_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 14:16:00,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-26 14:16:00,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:16:00,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:16:00,072 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 14:16:00,077 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 14:16:00,078 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 14:16:00,088 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 14:16:00,089 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 14:16:00,089 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 14:16:00,107 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 14:16:00,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:16:00,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:16:00,108 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 14:16:00,109 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 14:16:00,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 14:16:00,110 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 14:16:00,121 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 14:16:00,121 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 14:16:00,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-26 14:16:00,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:16:00,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:16:00,140 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 14:16:00,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 14:16:00,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 14:16:00,154 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 14:16:00,161 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 14:16:00,161 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread1.offset_3=0} Honda state: {v_rep#funAddr~thread1.offset_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 14:16:00,190 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 14:16:00,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:16:00,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:16:00,192 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 14:16:00,193 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 14:16:00,194 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 14:16:00,194 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 14:16:00,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-26 14:16:00,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:16:00,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:16:00,240 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 14:16:00,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-26 14:16:00,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 14:16:00,271 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 14:16:00,388 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-26 14:16:00,392 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 14:16:00,392 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 14:16:00,392 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 14:16:00,392 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 14:16:00,392 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 14:16:00,392 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-26 14:16:00,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:16:00,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 14:16:00,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 14:16:00,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-figure1-alt.wvr.c_BEv2_Iteration2_Loop [2022-07-26 14:16:00,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 14:16:00,392 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 14:16:00,393 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 14:16:00,395 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 14:16:00,397 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 14:16:00,399 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 14:16:00,401 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 14:16:00,405 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 14:16:00,407 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 14:16:00,411 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 14:16:00,413 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 14:16:00,478 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 14:16:00,478 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-26 14:16:00,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:16:00,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:16:00,479 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 14:16:00,510 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 14:16:00,513 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 14:16:00,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 14:16:00,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 14:16:00,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 14:16:00,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 14:16:00,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 14:16:00,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 14:16:00,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 14:16:00,539 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 14:16:00,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-07-26 14:16:00,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:16:00,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:16:00,558 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 14:16:00,559 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 14:16:00,560 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 14:16:00,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 14:16:00,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 14:16:00,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 14:16:00,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 14:16:00,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 14:16:00,566 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 14:16:00,566 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 14:16:00,582 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 14:16:00,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-07-26 14:16:00,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:16:00,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:16:00,600 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 14:16:00,601 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 14:16:00,603 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 14:16:00,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 14:16:00,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 14:16:00,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 14:16:00,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 14:16:00,610 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 14:16:00,610 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 14:16:00,639 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 14:16:00,669 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 14:16:00,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:16:00,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:16:00,671 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 14:16:00,672 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 14:16:00,673 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 14:16:00,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 14:16:00,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 14:16:00,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 14:16:00,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 14:16:00,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 14:16:00,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 14:16:00,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 14:16:00,717 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 14:16:00,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:16:00,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:16:00,719 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 14:16:00,719 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 14:16:00,721 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 14:16:00,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 14:16:00,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 14:16:00,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 14:16:00,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 14:16:00,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 14:16:00,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 14:16:00,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 14:16:00,737 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-26 14:16:00,739 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-26 14:16:00,739 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-26 14:16:00,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:16:00,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:16:00,740 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 14:16:00,742 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 14:16:00,743 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-26 14:16:00,743 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-26 14:16:00,743 INFO L513 LassoAnalysis]: Proved termination. [2022-07-26 14:16:00,743 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread2Thread1of1ForFork0_~i~1#1, ~N2~0) = -1*thread2Thread1of1ForFork0_~i~1#1 + 1*~N2~0 Supporting invariants [] [2022-07-26 14:16:00,759 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 14:16:00,759 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-26 14:16:00,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 14:16:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 14:16:00,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-26 14:16:00,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 14:16:00,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 14:16:00,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-26 14:16:00,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 14:16:00,804 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 14:16:00,804 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 14:16:00,805 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 14:16:00,832 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 14:16:00,833 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 14:16:00,833 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 14:16:00,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2022-07-26 14:16:00,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 5 letters. Loop has 1 letters. [2022-07-26 14:16:00,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 14:16:00,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 6 letters. Loop has 1 letters. [2022-07-26 14:16:00,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 14:16:00,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-26 14:16:00,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 14:16:00,834 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 220 transitions. [2022-07-26 14:16:00,836 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-26 14:16:00,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 0 states and 0 transitions. [2022-07-26 14:16:00,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-26 14:16:00,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-26 14:16:00,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-26 14:16:00,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-26 14:16:00,836 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 14:16:00,836 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 14:16:00,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-26 14:16:00,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-26 14:16:00,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-26 14:16:00,839 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 14:16:00,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-26 14:16:00,840 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-07-26 14:16:00,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-07-26 14:16:00,841 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-26 14:16:00,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-07-26 14:16:00,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-26 14:16:00,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-26 14:16:00,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-26 14:16:00,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-26 14:16:00,841 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 14:16:00,841 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 14:16:00,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-26 14:16:00,842 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 14:16:00,842 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-26 14:16:00,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-26 14:16:00,842 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-26 14:16:00,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-26 14:16:00,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.07 02:16:00 BoogieIcfgContainer [2022-07-26 14:16:00,856 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-26 14:16:00,856 INFO L158 Benchmark]: Toolchain (without parser) took 4658.19ms. Allocated memory was 202.4MB in the beginning and 259.0MB in the end (delta: 56.6MB). Free memory was 147.0MB in the beginning and 173.1MB in the end (delta: -26.1MB). Peak memory consumption was 31.4MB. Max. memory is 8.0GB. [2022-07-26 14:16:00,856 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 202.4MB. Free memory is still 163.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-26 14:16:00,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.86ms. Allocated memory is still 202.4MB. Free memory was 146.9MB in the beginning and 171.5MB in the end (delta: -24.6MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2022-07-26 14:16:00,857 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.71ms. Allocated memory is still 202.4MB. Free memory was 171.5MB in the beginning and 170.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-26 14:16:00,857 INFO L158 Benchmark]: Boogie Preprocessor took 29.61ms. Allocated memory is still 202.4MB. Free memory was 170.1MB in the beginning and 168.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-26 14:16:00,857 INFO L158 Benchmark]: RCFGBuilder took 287.62ms. Allocated memory is still 202.4MB. Free memory was 168.8MB in the beginning and 155.4MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-07-26 14:16:00,858 INFO L158 Benchmark]: BuchiAutomizer took 4010.97ms. Allocated memory was 202.4MB in the beginning and 259.0MB in the end (delta: 56.6MB). Free memory was 155.4MB in the beginning and 173.1MB in the end (delta: -17.7MB). Peak memory consumption was 40.3MB. Max. memory is 8.0GB. [2022-07-26 14:16:00,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 202.4MB. Free memory is still 163.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 285.86ms. Allocated memory is still 202.4MB. Free memory was 146.9MB in the beginning and 171.5MB in the end (delta: -24.6MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.71ms. Allocated memory is still 202.4MB. Free memory was 171.5MB in the beginning and 170.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.61ms. Allocated memory is still 202.4MB. Free memory was 170.1MB in the beginning and 168.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 287.62ms. Allocated memory is still 202.4MB. Free memory was 168.8MB in the beginning and 155.4MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 4010.97ms. Allocated memory was 202.4MB in the beginning and 259.0MB in the end (delta: 56.6MB). Free memory was 155.4MB in the beginning and 173.1MB in the end (delta: -17.7MB). Peak memory consumption was 40.3MB. 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 + N1 and consists of 4 locations. One deterministic module has affine ranking function N2 + -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 3.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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, 15 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: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 2.0s - 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: 1.9s, 85 PlacesBefore, 20 PlacesAfterwards, 84 TransitionsBefore, 15 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 6 FixpointIterations, 47 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 4 ConcurrentYvCompositions, 4 ChoiceCompositions, 82 TotalNumberOfCompositions, 527 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 501, positive: 497, positive conditional: 0, positive unconditional: 497, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 267, positive: 264, positive conditional: 0, positive unconditional: 264, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 501, positive: 233, positive conditional: 0, positive unconditional: 233, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 267, unknown conditional: 0, unknown unconditional: 267] , Statistics on independence cache: Total cache size (in pairs): 19, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, 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 14:16:00,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-26 14:16:01,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...