/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf -i ../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled-atomic.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-0d686a6 [2022-07-26 13:51:29,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-26 13:51:29,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-26 13:51:29,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-26 13:51:29,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-26 13:51:29,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-26 13:51:29,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-26 13:51:29,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-26 13:51:29,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-26 13:51:29,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-26 13:51:29,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-26 13:51:29,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-26 13:51:29,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-26 13:51:29,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-26 13:51:29,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-26 13:51:29,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-26 13:51:29,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-26 13:51:29,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-26 13:51:29,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-26 13:51:29,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-26 13:51:29,286 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-26 13:51:29,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-26 13:51:29,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-26 13:51:29,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-26 13:51:29,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-26 13:51:29,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-26 13:51:29,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-26 13:51:29,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-26 13:51:29,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-26 13:51:29,300 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf [2022-07-26 13:51:29,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-26 13:51:29,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-26 13:51:29,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-26 13:51:29,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-26 13:51:29,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-26 13:51:29,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-26 13:51:29,324 INFO L138 SettingsManager]: * Use SBE=true [2022-07-26 13:51:29,324 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-26 13:51:29,324 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-26 13:51:29,324 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-26 13:51:29,325 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-26 13:51:29,325 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-26 13:51:29,325 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-26 13:51:29,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-26 13:51:29,325 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-26 13:51:29,325 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-26 13:51:29,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-26 13:51:29,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-26 13:51:29,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-26 13:51:29,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-26 13:51:29,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-26 13:51:29,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-26 13:51:29,327 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-26 13:51:29,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-26 13:51:29,327 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-26 13:51:29,327 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-26 13:51:29,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-26 13:51:29,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-26 13:51:29,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-26 13:51:29,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-26 13:51:29,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-26 13:51:29,329 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-26 13:51:29,329 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-26 13:51:29,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-26 13:51:29,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-26 13:51:29,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-26 13:51:29,534 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-26 13:51:29,536 INFO L275 PluginConnector]: CDTParser initialized [2022-07-26 13:51:29,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2022-07-26 13:51:29,589 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84ba02487/e8832b30d2744347aeb47d2a12c70363/FLAGde68207f2 [2022-07-26 13:51:29,960 INFO L306 CDTParser]: Found 1 translation units. [2022-07-26 13:51:29,961 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2022-07-26 13:51:29,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84ba02487/e8832b30d2744347aeb47d2a12c70363/FLAGde68207f2 [2022-07-26 13:51:30,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84ba02487/e8832b30d2744347aeb47d2a12c70363 [2022-07-26 13:51:30,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-26 13:51:30,361 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-26 13:51:30,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-26 13:51:30,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-26 13:51:30,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-26 13:51:30,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 01:51:30" (1/1) ... [2022-07-26 13:51:30,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6013570c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:51:30, skipping insertion in model container [2022-07-26 13:51:30,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 01:51:30" (1/1) ... [2022-07-26 13:51:30,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-26 13:51:30,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-26 13:51:30,562 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/parallel-misc-2-unrolled-atomic.wvr.c[2252,2265] [2022-07-26 13:51:30,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 13:51:30,576 INFO L203 MainTranslator]: Completed pre-run [2022-07-26 13:51:30,592 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/parallel-misc-2-unrolled-atomic.wvr.c[2252,2265] [2022-07-26 13:51:30,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 13:51:30,605 INFO L208 MainTranslator]: Completed translation [2022-07-26 13:51:30,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:51:30 WrapperNode [2022-07-26 13:51:30,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-26 13:51:30,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-26 13:51:30,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-26 13:51:30,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-26 13:51:30,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:51:30" (1/1) ... [2022-07-26 13:51:30,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:51:30" (1/1) ... [2022-07-26 13:51:30,636 INFO L137 Inliner]: procedures = 20, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2022-07-26 13:51:30,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-26 13:51:30,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-26 13:51:30,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-26 13:51:30,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-26 13:51:30,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:51:30" (1/1) ... [2022-07-26 13:51:30,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:51:30" (1/1) ... [2022-07-26 13:51:30,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:51:30" (1/1) ... [2022-07-26 13:51:30,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:51:30" (1/1) ... [2022-07-26 13:51:30,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:51:30" (1/1) ... [2022-07-26 13:51:30,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:51:30" (1/1) ... [2022-07-26 13:51:30,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:51:30" (1/1) ... [2022-07-26 13:51:30,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-26 13:51:30,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-26 13:51:30,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-26 13:51:30,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-26 13:51:30,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:51:30" (1/1) ... [2022-07-26 13:51:30,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:30,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:30,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:30,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-26 13:51:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-26 13:51:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-26 13:51:30,730 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-26 13:51:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-26 13:51:30,730 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-26 13:51:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-26 13:51:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-26 13:51:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-26 13:51:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-26 13:51:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-26 13:51:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-26 13:51:30,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-26 13:51:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-26 13:51:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-26 13:51:30,734 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-26 13:51:30,793 INFO L234 CfgBuilder]: Building ICFG [2022-07-26 13:51:30,794 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-26 13:51:30,943 INFO L275 CfgBuilder]: Performing block encoding [2022-07-26 13:51:30,986 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-26 13:51:30,986 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-26 13:51:30,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 01:51:30 BoogieIcfgContainer [2022-07-26 13:51:30,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-26 13:51:30,989 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-26 13:51:30,989 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-26 13:51:30,992 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-26 13:51:30,993 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:51:30,993 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.07 01:51:30" (1/3) ... [2022-07-26 13:51:30,993 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@cd8920c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 01:51:30, skipping insertion in model container [2022-07-26 13:51:30,994 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:51:30,994 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:51:30" (2/3) ... [2022-07-26 13:51:30,994 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@cd8920c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 01:51:30, skipping insertion in model container [2022-07-26 13:51:30,994 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:51:30,994 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 01:51:30" (3/3) ... [2022-07-26 13:51:30,995 INFO L322 chiAutomizerObserver]: Analyzing ICFG parallel-misc-2-unrolled-atomic.wvr.c [2022-07-26 13:51:31,075 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-26 13:51:31,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions, 202 flow [2022-07-26 13:51:31,141 INFO L129 PetriNetUnfolder]: 7/89 cut-off events. [2022-07-26 13:51:31,141 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-26 13:51:31,146 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 89 events. 7/89 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2022-07-26 13:51:31,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 93 transitions, 202 flow [2022-07-26 13:51:31,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 89 transitions, 190 flow [2022-07-26 13:51:31,154 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-26 13:51:31,166 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 89 transitions, 190 flow [2022-07-26 13:51:31,168 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 89 transitions, 190 flow [2022-07-26 13:51:31,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 89 transitions, 190 flow [2022-07-26 13:51:31,187 INFO L129 PetriNetUnfolder]: 7/89 cut-off events. [2022-07-26 13:51:31,187 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-26 13:51:31,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 89 events. 7/89 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2022-07-26 13:51:31,189 INFO L116 LiptonReduction]: Number of co-enabled transitions 252 [2022-07-26 13:51:33,652 INFO L131 LiptonReduction]: Checked pairs total: 321 [2022-07-26 13:51:33,653 INFO L133 LiptonReduction]: Total number of compositions: 93 [2022-07-26 13:51:33,668 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2022-07-26 13:51:33,669 INFO L302 stractBuchiCegarLoop]: Hoare is false [2022-07-26 13:51:33,669 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-26 13:51:33,669 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-26 13:51:33,669 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-26 13:51:33,669 INFO L306 stractBuchiCegarLoop]: Difference is false [2022-07-26 13:51:33,669 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-26 13:51:33,669 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-26 13:51:33,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-26 13:51:33,691 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 10 [2022-07-26 13:51:33,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 13:51:33,691 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 13:51:33,695 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-26 13:51:33,695 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-26 13:51:33,696 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-26 13:51:33,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 19 states, but on-demand construction may add more states [2022-07-26 13:51:33,697 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 10 [2022-07-26 13:51:33,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 13:51:33,698 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 13:51:33,698 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-26 13:51:33,698 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-26 13:51:33,703 INFO L733 eck$LassoCheckResult]: Stem: 94#[ULTIMATE.startENTRY]don't care [356] ULTIMATE.startENTRY-->L78-3: Formula: (let ((.cse0 (select |v_#memory_int_60| 1)) (.cse1 (store |v_#valid_111| |v_ULTIMATE.start_main_~#t1~0#1.base_53| 1))) (and (= 48 (select .cse0 0)) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_45| 0) (= |v_ULTIMATE.start_main_#t~pre11#1_39| |v_#pthreadsForks_46|) (= (select |v_#valid_111| 2) 1) (= |v_#pthreadsForks_45| (+ |v_#pthreadsForks_46| 1)) (= (select .cse0 1) 0) (< |v_#StackHeapBarrier_24| |v_ULTIMATE.start_main_~#t1~0#1.base_53|) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_87| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_69|) (= (select |v_#length_74| 1) 2) (= (select |v_#valid_111| |v_ULTIMATE.start_main_~#t1~0#1.base_53|) 0) (= (store (store |v_#length_74| |v_ULTIMATE.start_main_~#t1~0#1.base_53| 4) |v_ULTIMATE.start_main_~#t2~0#1.base_45| 4) |v_#length_73|) (= (select |v_#valid_111| 1) 1) (< |v_#StackHeapBarrier_24| |v_ULTIMATE.start_main_~#t2~0#1.base_45|) (= |v_#memory_int_59| (store |v_#memory_int_60| |v_ULTIMATE.start_main_~#t1~0#1.base_53| (store (select |v_#memory_int_60| |v_ULTIMATE.start_main_~#t1~0#1.base_53|) |v_ULTIMATE.start_main_~#t1~0#1.offset_45| |v_ULTIMATE.start_main_#t~pre11#1_39|))) (= (select |v_#length_74| 2) 38) (= |v_#valid_110| (store .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_45| 1)) (= (ite (and (<= 0 v_~N~0_58) (<= v_~N~0_58 1073741823)) 1 0) |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_69|) (< 0 |v_#StackHeapBarrier_24|) (= |v_#NULL.offset_8| 0) (= |v_ULTIMATE.start_main_~#t2~0#1.offset_37| 0) (= |v_#NULL.base_8| 0) (not (= (ite (and (= v_~pos~0_113 0) (= v_~pos~0_113 v_~i1~0_84) (= v_~pos~0_113 v_~i2~0_84)) 1 0) 0)) (= (select .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_45|) 0) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_87| 0)) (= (select |v_#valid_111| 0) 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_24|, #pthreadsForks=|v_#pthreadsForks_46|, #valid=|v_#valid_111|, #memory_int=|v_#memory_int_60|, #length=|v_#length_74|} OutVars{ULTIMATE.start_main_#t~pre13#1=|v_ULTIMATE.start_main_#t~pre13#1_29|, ULTIMATE.start_main_#t~nondet9#1=|v_ULTIMATE.start_main_#t~nondet9#1_40|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_37|, #NULL.offset=|v_#NULL.offset_8|, ~i1~0=v_~i1~0_84, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_45|, ULTIMATE.start_main_#t~nondet12#1=|v_ULTIMATE.start_main_#t~nondet12#1_21|, #pthreadsForks=|v_#pthreadsForks_45|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_87|, #length=|v_#length_73|, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_50|, ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_39|, ULTIMATE.start_main_#t~mem15#1=|v_ULTIMATE.start_main_#t~mem15#1_22|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_36|, ULTIMATE.start_main_#t~mem16#1=|v_ULTIMATE.start_main_#t~mem16#1_34|, ~i2~0=v_~i2~0_84, ~N~0=v_~N~0_58, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_53|, #NULL.base=|v_#NULL.base_8|, ULTIMATE.start_main_#t~nondet14#1=|v_ULTIMATE.start_main_#t~nondet14#1_19|, #StackHeapBarrier=|v_#StackHeapBarrier_24|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_32|, #valid=|v_#valid_110|, ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_30|, #memory_int=|v_#memory_int_59|, ~pos~0=v_~pos~0_113, 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_69|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre13#1, ULTIMATE.start_main_#t~nondet9#1, ULTIMATE.start_main_~#t2~0#1.offset, #NULL.offset, ~i1~0, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_#t~nondet12#1, #pthreadsForks, ULTIMATE.start_assume_abort_if_not_~cond#1, #length, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_#t~pre11#1, ULTIMATE.start_main_#t~mem15#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~mem16#1, ~i2~0, ~N~0, ULTIMATE.start_main_~#t1~0#1.base, #NULL.base, ULTIMATE.start_main_#t~nondet14#1, ULTIMATE.start_main_#t~nondet8#1, #valid, ULTIMATE.start_main_#t~nondet7#1, #memory_int, ~pos~0, ULTIMATE.start_main_~#t2~0#1.base, ULTIMATE.start_assume_abort_if_not_#in~cond#1] 97#[L78-3]don't care [258] L78-3-->L46: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar0_2 |v_ULTIMATE.start_main_#t~pre11#1_6|) (= v_thread1Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_6|} OutVars{thread1Thread1of1ForFork0_#res.base=|v_thread1Thread1of1ForFork0_#res.base_4|, ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_6|, thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_4|, thread1Thread1of1ForFork0_#t~post2=|v_thread1Thread1of1ForFork0_#t~post2_4|, thread1Thread1of1ForFork0_#t~post3=|v_thread1Thread1of1ForFork0_#t~post3_4|, thread1Thread1of1ForFork0_#t~post4=|v_thread1Thread1of1ForFork0_#t~post4_4|, thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_#res.offset=|v_thread1Thread1of1ForFork0_#res.offset_4|, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#res.base, thread1Thread1of1ForFork0_#t~post1, thread1Thread1of1ForFork0_#t~post2, thread1Thread1of1ForFork0_#t~post3, thread1Thread1of1ForFork0_#t~post4, thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_#res.offset, thread1Thread1of1ForFork0_thidvar1] 99#[L46, L78-4]don't care [2022-07-26 13:51:33,703 INFO L735 eck$LassoCheckResult]: Loop: 99#[L46, L78-4]don't care [300] L46-->L46: Formula: (and (= v_~pos~0_67 v_~pos~0_68) (< v_~i1~0_47 (* 2 v_~N~0_20)) (= v_~i1~0_46 (+ v_~i1~0_47 2))) InVars {~i1~0=v_~i1~0_47, ~pos~0=v_~pos~0_68, ~N~0=v_~N~0_20} OutVars{thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_5|, thread1Thread1of1ForFork0_#t~post2=|v_thread1Thread1of1ForFork0_#t~post2_5|, thread1Thread1of1ForFork0_#t~post3=|v_thread1Thread1of1ForFork0_#t~post3_5|, thread1Thread1of1ForFork0_#t~post4=|v_thread1Thread1of1ForFork0_#t~post4_5|, ~i1~0=v_~i1~0_46, ~pos~0=v_~pos~0_67, ~N~0=v_~N~0_20} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~post1, thread1Thread1of1ForFork0_#t~post2, thread1Thread1of1ForFork0_#t~post3, thread1Thread1of1ForFork0_#t~post4, ~i1~0, ~pos~0] 99#[L46, L78-4]don't care [2022-07-26 13:51:33,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:51:33,708 INFO L85 PathProgramCache]: Analyzing trace with hash 12255, now seen corresponding path program 1 times [2022-07-26 13:51:33,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:51:33,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686003399] [2022-07-26 13:51:33,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:51:33,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:51:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:51:33,793 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:51:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:51:33,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:51:33,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:51:33,827 INFO L85 PathProgramCache]: Analyzing trace with hash 331, now seen corresponding path program 1 times [2022-07-26 13:51:33,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:51:33,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481104370] [2022-07-26 13:51:33,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:51:33,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:51:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:51:33,832 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:51:33,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:51:33,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:51:33,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:51:33,837 INFO L85 PathProgramCache]: Analyzing trace with hash 380205, now seen corresponding path program 1 times [2022-07-26 13:51:33,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:51:33,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413257856] [2022-07-26 13:51:33,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:51:33,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:51:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:51:33,857 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:51:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:51:33,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:51:33,910 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 13:51:33,911 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 13:51:33,911 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 13:51:33,912 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 13:51:33,912 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-26 13:51:33,912 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:33,912 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 13:51:33,912 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 13:51:33,912 INFO L133 ssoRankerPreferences]: Filename of dumped script: parallel-misc-2-unrolled-atomic.wvr.c_BEv2_Iteration1_Loop [2022-07-26 13:51:33,912 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 13:51:33,913 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 13:51:33,927 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:33,932 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:33,935 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:33,938 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:33,940 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:33,943 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:33,944 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:33,946 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:33,948 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 13:51:33,950 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:34,010 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 13:51:34,015 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-26 13:51:34,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:34,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:34,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:34,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-26 13:51:34,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:51:34,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:51:34,043 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:51:34,044 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread1.base_1=-1} Honda state: {v_rep#funAddr~thread1.base_1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:51:34,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-26 13:51:34,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:34,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:34,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:34,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-26 13:51:34,064 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:51:34,065 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:51:34,076 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:51:34,076 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread1.offset_1=0} Honda state: {v_rep#funAddr~thread1.offset_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:51:34,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-26 13:51:34,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:34,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:34,119 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:34,126 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:51:34,126 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:51:34,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-26 13:51:34,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-26 13:51:34,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:34,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:34,185 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:34,192 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-26 13:51:34,192 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:51:34,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-26 13:51:34,306 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-26 13:51:34,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-07-26 13:51:34,310 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 13:51:34,310 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 13:51:34,310 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 13:51:34,310 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 13:51:34,310 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-26 13:51:34,310 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:34,310 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 13:51:34,310 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 13:51:34,311 INFO L133 ssoRankerPreferences]: Filename of dumped script: parallel-misc-2-unrolled-atomic.wvr.c_BEv2_Iteration1_Loop [2022-07-26 13:51:34,311 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 13:51:34,311 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 13:51:34,312 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:34,318 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:34,320 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:34,332 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:34,337 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:34,340 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:34,343 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:34,346 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:34,348 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:34,350 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:34,408 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 13:51:34,412 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-26 13:51:34,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:34,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:34,414 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:34,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:51:34,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:51:34,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:51:34,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:51:34,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:51:34,437 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 13:51:34,437 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 13:51:34,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-26 13:51:34,455 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:51:34,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-26 13:51:34,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:34,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:34,474 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:34,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-26 13:51:34,476 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:51:34,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:51:34,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:51:34,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:51:34,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:51:34,484 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 13:51:34,485 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 13:51:34,491 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:51:34,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-26 13:51:34,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:34,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:34,508 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:34,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-26 13:51:34,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:51:34,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:51:34,516 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 13:51:34,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:51:34,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:51:34,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:51:34,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 13:51:34,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 13:51:34,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:51:34,533 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 13:51:34,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:34,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:34,534 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:34,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-26 13:51:34,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:51:34,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:51:34,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 13:51:34,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:51:34,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:51:34,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:51:34,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 13:51:34,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 13:51:34,550 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-26 13:51:34,555 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-26 13:51:34,555 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-26 13:51:34,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:34,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:34,557 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:34,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-26 13:51:34,559 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-26 13:51:34,559 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-26 13:51:34,559 INFO L513 LassoAnalysis]: Proved termination. [2022-07-26 13:51:34,559 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~i1~0, ~N~0) = -1*~i1~0 + 2*~N~0 Supporting invariants [] [2022-07-26 13:51:34,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-26 13:51:34,584 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-26 13:51:34,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:51:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 13:51:34,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-26 13:51:34,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 13:51:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 13:51:34,652 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-26 13:51:34,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 13:51:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-26 13:51:34,682 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-26 13:51:34,684 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 19 states, but on-demand construction may add more states Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-26 13:51:34,744 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 19 states, but on-demand construction may add more states. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 51 states and 124 transitions. Complement of second has 5 states. [2022-07-26 13:51:34,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-26 13:51:34,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-26 13:51:34,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2022-07-26 13:51:34,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 2 letters. Loop has 1 letters. [2022-07-26 13:51:34,752 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:51:34,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 3 letters. Loop has 1 letters. [2022-07-26 13:51:34,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:51:34,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 2 letters. Loop has 2 letters. [2022-07-26 13:51:34,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:51:34,753 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 124 transitions. [2022-07-26 13:51:34,761 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 6 [2022-07-26 13:51:34,764 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 24 states and 57 transitions. [2022-07-26 13:51:34,764 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-26 13:51:34,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-07-26 13:51:34,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 57 transitions. [2022-07-26 13:51:34,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-26 13:51:34,765 INFO L220 hiAutomatonCegarLoop]: Abstraction has 24 states and 57 transitions. [2022-07-26 13:51:34,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 57 transitions. [2022-07-26 13:51:34,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2022-07-26 13:51:34,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-26 13:51:34,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 47 transitions. [2022-07-26 13:51:34,788 INFO L242 hiAutomatonCegarLoop]: Abstraction has 19 states and 47 transitions. [2022-07-26 13:51:34,788 INFO L426 stractBuchiCegarLoop]: Abstraction has 19 states and 47 transitions. [2022-07-26 13:51:34,788 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-26 13:51:34,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 47 transitions. [2022-07-26 13:51:34,790 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 6 [2022-07-26 13:51:34,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 13:51:34,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 13:51:34,791 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-26 13:51:34,791 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-26 13:51:34,792 INFO L733 eck$LassoCheckResult]: Stem: 214#[ULTIMATE.startENTRY]don't care [356] ULTIMATE.startENTRY-->L78-3: Formula: (let ((.cse0 (select |v_#memory_int_60| 1)) (.cse1 (store |v_#valid_111| |v_ULTIMATE.start_main_~#t1~0#1.base_53| 1))) (and (= 48 (select .cse0 0)) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_45| 0) (= |v_ULTIMATE.start_main_#t~pre11#1_39| |v_#pthreadsForks_46|) (= (select |v_#valid_111| 2) 1) (= |v_#pthreadsForks_45| (+ |v_#pthreadsForks_46| 1)) (= (select .cse0 1) 0) (< |v_#StackHeapBarrier_24| |v_ULTIMATE.start_main_~#t1~0#1.base_53|) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_87| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_69|) (= (select |v_#length_74| 1) 2) (= (select |v_#valid_111| |v_ULTIMATE.start_main_~#t1~0#1.base_53|) 0) (= (store (store |v_#length_74| |v_ULTIMATE.start_main_~#t1~0#1.base_53| 4) |v_ULTIMATE.start_main_~#t2~0#1.base_45| 4) |v_#length_73|) (= (select |v_#valid_111| 1) 1) (< |v_#StackHeapBarrier_24| |v_ULTIMATE.start_main_~#t2~0#1.base_45|) (= |v_#memory_int_59| (store |v_#memory_int_60| |v_ULTIMATE.start_main_~#t1~0#1.base_53| (store (select |v_#memory_int_60| |v_ULTIMATE.start_main_~#t1~0#1.base_53|) |v_ULTIMATE.start_main_~#t1~0#1.offset_45| |v_ULTIMATE.start_main_#t~pre11#1_39|))) (= (select |v_#length_74| 2) 38) (= |v_#valid_110| (store .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_45| 1)) (= (ite (and (<= 0 v_~N~0_58) (<= v_~N~0_58 1073741823)) 1 0) |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_69|) (< 0 |v_#StackHeapBarrier_24|) (= |v_#NULL.offset_8| 0) (= |v_ULTIMATE.start_main_~#t2~0#1.offset_37| 0) (= |v_#NULL.base_8| 0) (not (= (ite (and (= v_~pos~0_113 0) (= v_~pos~0_113 v_~i1~0_84) (= v_~pos~0_113 v_~i2~0_84)) 1 0) 0)) (= (select .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_45|) 0) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_87| 0)) (= (select |v_#valid_111| 0) 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_24|, #pthreadsForks=|v_#pthreadsForks_46|, #valid=|v_#valid_111|, #memory_int=|v_#memory_int_60|, #length=|v_#length_74|} OutVars{ULTIMATE.start_main_#t~pre13#1=|v_ULTIMATE.start_main_#t~pre13#1_29|, ULTIMATE.start_main_#t~nondet9#1=|v_ULTIMATE.start_main_#t~nondet9#1_40|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_37|, #NULL.offset=|v_#NULL.offset_8|, ~i1~0=v_~i1~0_84, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_45|, ULTIMATE.start_main_#t~nondet12#1=|v_ULTIMATE.start_main_#t~nondet12#1_21|, #pthreadsForks=|v_#pthreadsForks_45|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_87|, #length=|v_#length_73|, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_50|, ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_39|, ULTIMATE.start_main_#t~mem15#1=|v_ULTIMATE.start_main_#t~mem15#1_22|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_36|, ULTIMATE.start_main_#t~mem16#1=|v_ULTIMATE.start_main_#t~mem16#1_34|, ~i2~0=v_~i2~0_84, ~N~0=v_~N~0_58, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_53|, #NULL.base=|v_#NULL.base_8|, ULTIMATE.start_main_#t~nondet14#1=|v_ULTIMATE.start_main_#t~nondet14#1_19|, #StackHeapBarrier=|v_#StackHeapBarrier_24|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_32|, #valid=|v_#valid_110|, ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_30|, #memory_int=|v_#memory_int_59|, ~pos~0=v_~pos~0_113, 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_69|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre13#1, ULTIMATE.start_main_#t~nondet9#1, ULTIMATE.start_main_~#t2~0#1.offset, #NULL.offset, ~i1~0, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_#t~nondet12#1, #pthreadsForks, ULTIMATE.start_assume_abort_if_not_~cond#1, #length, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_#t~pre11#1, ULTIMATE.start_main_#t~mem15#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~mem16#1, ~i2~0, ~N~0, ULTIMATE.start_main_~#t1~0#1.base, #NULL.base, ULTIMATE.start_main_#t~nondet14#1, ULTIMATE.start_main_#t~nondet8#1, #valid, ULTIMATE.start_main_#t~nondet7#1, #memory_int, ~pos~0, ULTIMATE.start_main_~#t2~0#1.base, ULTIMATE.start_assume_abort_if_not_#in~cond#1] 216#[L78-3]don't care [258] L78-3-->L46: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar0_2 |v_ULTIMATE.start_main_#t~pre11#1_6|) (= v_thread1Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_6|} OutVars{thread1Thread1of1ForFork0_#res.base=|v_thread1Thread1of1ForFork0_#res.base_4|, ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_6|, thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_4|, thread1Thread1of1ForFork0_#t~post2=|v_thread1Thread1of1ForFork0_#t~post2_4|, thread1Thread1of1ForFork0_#t~post3=|v_thread1Thread1of1ForFork0_#t~post3_4|, thread1Thread1of1ForFork0_#t~post4=|v_thread1Thread1of1ForFork0_#t~post4_4|, thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_#res.offset=|v_thread1Thread1of1ForFork0_#res.offset_4|, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#res.base, thread1Thread1of1ForFork0_#t~post1, thread1Thread1of1ForFork0_#t~post2, thread1Thread1of1ForFork0_#t~post3, thread1Thread1of1ForFork0_#t~post4, thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_#res.offset, thread1Thread1of1ForFork0_thidvar1] 240#[L46, L78-4]don't care [334] L78-4-->L79-3: Formula: (and (= (select |v_#valid_66| |v_ULTIMATE.start_main_~#t2~0#1.base_27|) 1) (= |v_#memory_int_27| (store |v_#memory_int_28| |v_ULTIMATE.start_main_~#t2~0#1.base_27| (store (select |v_#memory_int_28| |v_ULTIMATE.start_main_~#t2~0#1.base_27|) |v_ULTIMATE.start_main_~#t2~0#1.offset_23| |v_ULTIMATE.start_main_#t~pre13#1_19|))) (<= (+ |v_ULTIMATE.start_main_~#t2~0#1.offset_23| 4) (select |v_#length_43| |v_ULTIMATE.start_main_~#t2~0#1.base_27|)) (= |v_ULTIMATE.start_main_#t~pre13#1_19| |v_#pthreadsForks_22|) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_23|) (= |v_#pthreadsForks_21| (+ |v_#pthreadsForks_22| 1))) InVars {#pthreadsForks=|v_#pthreadsForks_22|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_23|, #valid=|v_#valid_66|, #memory_int=|v_#memory_int_28|, #length=|v_#length_43|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_27|} OutVars{ULTIMATE.start_main_#t~pre13#1=|v_ULTIMATE.start_main_#t~pre13#1_19|, #pthreadsForks=|v_#pthreadsForks_21|, ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_19|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_23|, #valid=|v_#valid_66|, #memory_int=|v_#memory_int_27|, #length=|v_#length_43|, ULTIMATE.start_main_#t~nondet12#1=|v_ULTIMATE.start_main_#t~nondet12#1_11|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_27|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre13#1, #pthreadsForks, ULTIMATE.start_main_#t~pre11#1, #memory_int, ULTIMATE.start_main_#t~nondet12#1] 218#[L46, L79-3]don't care [261] L79-3-->L59: Formula: (and (= 0 v_thread2Thread1of1ForFork1_thidvar1_2) (= v_thread2Thread1of1ForFork1_thidvar0_2 |v_ULTIMATE.start_main_#t~pre13#1_6|) (= 0 v_thread2Thread1of1ForFork1_thidvar2_2)) InVars {ULTIMATE.start_main_#t~pre13#1=|v_ULTIMATE.start_main_#t~pre13#1_6|} OutVars{thread2Thread1of1ForFork1_#t~post5=|v_thread2Thread1of1ForFork1_#t~post5_4|, thread2Thread1of1ForFork1_#res.offset=|v_thread2Thread1of1ForFork1_#res.offset_4|, ULTIMATE.start_main_#t~pre13#1=|v_ULTIMATE.start_main_#t~pre13#1_6|, thread2Thread1of1ForFork1_#res.base=|v_thread2Thread1of1ForFork1_#res.base_4|, thread2Thread1of1ForFork1_#t~post6=|v_thread2Thread1of1ForFork1_#t~post6_4|, thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_2, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~post5, thread2Thread1of1ForFork1_#res.offset, thread2Thread1of1ForFork1_#res.base, thread2Thread1of1ForFork1_#t~post6, thread2Thread1of1ForFork1_thidvar2, thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 220#[L46, L59, L79-4]don't care [2022-07-26 13:51:34,792 INFO L735 eck$LassoCheckResult]: Loop: 220#[L46, L59, L79-4]don't care [265] L59-->L59: Formula: (and (= v_~pos~0_58 v_~pos~0_57) (< v_~i2~0_41 (* 2 v_~N~0_8)) (= v_~i2~0_40 (+ v_~i2~0_41 2))) InVars {~i2~0=v_~i2~0_41, ~pos~0=v_~pos~0_58, ~N~0=v_~N~0_8} OutVars{thread2Thread1of1ForFork1_#t~post5=|v_thread2Thread1of1ForFork1_#t~post5_5|, thread2Thread1of1ForFork1_#t~post6=|v_thread2Thread1of1ForFork1_#t~post6_5|, ~i2~0=v_~i2~0_40, ~pos~0=v_~pos~0_57, ~N~0=v_~N~0_8} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~post5, thread2Thread1of1ForFork1_#t~post6, ~i2~0, ~pos~0] 220#[L46, L59, L79-4]don't care [2022-07-26 13:51:34,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:51:34,797 INFO L85 PathProgramCache]: Analyzing trace with hash 11787670, now seen corresponding path program 1 times [2022-07-26 13:51:34,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:51:34,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763834950] [2022-07-26 13:51:34,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:51:34,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:51:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:51:34,833 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:51:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:51:34,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:51:34,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:51:34,914 INFO L85 PathProgramCache]: Analyzing trace with hash 296, now seen corresponding path program 1 times [2022-07-26 13:51:34,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:51:34,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824673746] [2022-07-26 13:51:34,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:51:34,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:51:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:51:34,939 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:51:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:51:34,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:51:34,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:51:34,942 INFO L85 PathProgramCache]: Analyzing trace with hash 365418035, now seen corresponding path program 1 times [2022-07-26 13:51:34,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:51:34,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602458141] [2022-07-26 13:51:34,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:51:34,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:51:34,950 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 13:51:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:51:34,968 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:51:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:51:34,985 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:51:35,003 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 13:51:35,003 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 13:51:35,003 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 13:51:35,003 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 13:51:35,003 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-26 13:51:35,003 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:35,003 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 13:51:35,003 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 13:51:35,003 INFO L133 ssoRankerPreferences]: Filename of dumped script: parallel-misc-2-unrolled-atomic.wvr.c_BEv2_Iteration2_Loop [2022-07-26 13:51:35,003 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 13:51:35,003 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 13:51:35,006 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:35,008 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:35,010 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:35,012 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:35,017 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:35,018 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:35,021 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:35,022 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:35,071 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 13:51:35,072 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-26 13:51:35,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:35,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:35,073 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:35,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:51:35,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:51:35,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-26 13:51:35,108 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:51:35,108 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread2.offset_3=1} Honda state: {v_rep#funAddr~thread2.offset_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:51:35,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-26 13:51:35,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:35,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:35,125 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:35,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:51:35,139 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:51:35,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-26 13:51:35,152 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:51:35,152 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread1.base_3=-1} Honda state: {v_rep#funAddr~thread1.base_3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:51:35,168 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 13:51:35,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:35,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:35,169 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:35,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-26 13:51:35,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:51:35,171 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:51:35,192 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:51:35,192 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread2.base_3=-1} Honda state: {v_rep#funAddr~thread2.base_3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:51:35,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-26 13:51:35,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:35,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:35,219 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:35,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-26 13:51:35,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:51:35,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:51:35,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-26 13:51:35,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:35,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:35,281 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:35,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-26 13:51:35,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-26 13:51:35,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:51:35,385 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-26 13:51:35,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-26 13:51:35,390 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 13:51:35,390 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 13:51:35,390 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 13:51:35,390 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 13:51:35,390 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-26 13:51:35,390 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:35,390 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 13:51:35,391 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 13:51:35,391 INFO L133 ssoRankerPreferences]: Filename of dumped script: parallel-misc-2-unrolled-atomic.wvr.c_BEv2_Iteration2_Loop [2022-07-26 13:51:35,391 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 13:51:35,391 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 13:51:35,392 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:35,400 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:35,403 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:35,407 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 13:51:35,409 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:35,412 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:35,413 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 13:51:35,415 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:51:35,467 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 13:51:35,467 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-26 13:51:35,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:35,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:35,468 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:35,476 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:51:35,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:51:35,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:51:35,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:51:35,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:51:35,486 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 13:51:35,486 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 13:51:35,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-26 13:51:35,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:51:35,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-07-26 13:51:35,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:35,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:35,511 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:35,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-26 13:51:35,513 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 13:51:35,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:51:35,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:51:35,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:51:35,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:51:35,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 13:51:35,521 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 13:51:35,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:51:35,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-26 13:51:35,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:35,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:35,582 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:35,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:51:35,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-26 13:51:35,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:51:35,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 13:51:35,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:51:35,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:51:35,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:51:35,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 13:51:35,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 13:51:35,612 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-26 13:51:35,614 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-26 13:51:35,614 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-26 13:51:35,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:51:35,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:51:35,616 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 13:51:35,623 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-26 13:51:35,624 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-26 13:51:35,624 INFO L513 LassoAnalysis]: Proved termination. [2022-07-26 13:51:35,624 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~N~0, ~i2~0) = 2*~N~0 - 1*~i2~0 Supporting invariants [] [2022-07-26 13:51:35,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-26 13:51:35,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-26 13:51:35,649 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-26 13:51:35,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:51:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 13:51:35,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-26 13:51:35,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 13:51:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 13:51:35,691 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-26 13:51:35,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 13:51:35,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-26 13:51:35,693 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-26 13:51:35,693 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 47 transitions. cyclomatic complexity: 38 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-26 13:51:35,723 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 47 transitions. cyclomatic complexity: 38. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 99 transitions. Complement of second has 4 states. [2022-07-26 13:51:35,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-26 13:51:35,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-26 13:51:35,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2022-07-26 13:51:35,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 4 letters. Loop has 1 letters. [2022-07-26 13:51:35,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:51:35,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 5 letters. Loop has 1 letters. [2022-07-26 13:51:35,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:51:35,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-26 13:51:35,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:51:35,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 99 transitions. [2022-07-26 13:51:35,734 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-26 13:51:35,734 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 0 states and 0 transitions. [2022-07-26 13:51:35,734 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-26 13:51:35,734 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-26 13:51:35,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-26 13:51:35,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-26 13:51:35,734 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 13:51:35,735 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 13:51:35,735 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 13:51:35,735 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-26 13:51:35,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-26 13:51:35,735 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-26 13:51:35,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-26 13:51:35,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.07 01:51:35 BoogieIcfgContainer [2022-07-26 13:51:35,741 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-26 13:51:35,746 INFO L158 Benchmark]: Toolchain (without parser) took 5380.97ms. Allocated memory was 181.4MB in the beginning and 229.6MB in the end (delta: 48.2MB). Free memory was 124.1MB in the beginning and 157.1MB in the end (delta: -33.0MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. [2022-07-26 13:51:35,747 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 181.4MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-26 13:51:35,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.66ms. Allocated memory was 181.4MB in the beginning and 229.6MB in the end (delta: 48.2MB). Free memory was 124.0MB in the beginning and 200.1MB in the end (delta: -76.2MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. [2022-07-26 13:51:35,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.34ms. Allocated memory is still 229.6MB. Free memory was 199.8MB in the beginning and 198.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-26 13:51:35,749 INFO L158 Benchmark]: Boogie Preprocessor took 20.60ms. Allocated memory is still 229.6MB. Free memory was 198.2MB in the beginning and 197.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-26 13:51:35,749 INFO L158 Benchmark]: RCFGBuilder took 329.20ms. Allocated memory is still 229.6MB. Free memory was 197.2MB in the beginning and 182.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-07-26 13:51:35,753 INFO L158 Benchmark]: BuchiAutomizer took 4752.48ms. Allocated memory is still 229.6MB. Free memory was 182.0MB in the beginning and 157.1MB in the end (delta: 24.9MB). Peak memory consumption was 26.0MB. Max. memory is 8.0GB. [2022-07-26 13:51:35,755 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 181.4MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 242.66ms. Allocated memory was 181.4MB in the beginning and 229.6MB in the end (delta: 48.2MB). Free memory was 124.0MB in the beginning and 200.1MB in the end (delta: -76.2MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.34ms. Allocated memory is still 229.6MB. Free memory was 199.8MB in the beginning and 198.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.60ms. Allocated memory is still 229.6MB. Free memory was 198.2MB in the beginning and 197.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 329.20ms. Allocated memory is still 229.6MB. Free memory was 197.2MB in the beginning and 182.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * BuchiAutomizer took 4752.48ms. Allocated memory is still 229.6MB. Free memory was 182.0MB in the beginning and 157.1MB in the end (delta: 24.9MB). Peak memory consumption was 26.0MB. 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 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * N + -1 * i1 and consists of 4 locations. One deterministic module has affine ranking function 2 * N + -1 * i2 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 5 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, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax259 hnf100 lsp30 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms 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: 2.5s - 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: 2.5s, 89 PlacesBefore, 18 PlacesAfterwards, 89 TransitionsBefore, 13 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 8 FixpointIterations, 61 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 4 ConcurrentYvCompositions, 5 ChoiceCompositions, 93 TotalNumberOfCompositions, 321 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 321, positive: 321, positive conditional: 0, positive unconditional: 321, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 186, positive: 186, positive conditional: 0, positive unconditional: 186, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 186, positive: 186, positive conditional: 0, positive unconditional: 186, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 321, positive: 135, positive conditional: 0, positive unconditional: 135, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 186, unknown conditional: 0, unknown unconditional: 186] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2022-07-26 13:51:35,795 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 13:51:36,012 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...