/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/pthread-atomic/gcd-2.i


--------------------------------------------------------------------------------


This is Ultimate 0.2.2-dev-0d686a6
[2022-07-26 13:44:14,473 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-07-26 13:44:14,475 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2022-07-26 13:44:14,542 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
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[2022-07-26 13:44:14,543 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-07-26 13:44:14,544 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-07-26 13:44:14,545 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2022-07-26 13:44:14,559 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
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[2022-07-26 13:44:14,564 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2022-07-26 13:44:14,579 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-07-26 13:44:14,583 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-07-26 13:44:14,583 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 13:44:14,619 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-07-26 13:44:14,619 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-07-26 13:44:14,620 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-07-26 13:44:14,620 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-07-26 13:44:14,621 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-07-26 13:44:14,621 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-07-26 13:44:14,621 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-07-26 13:44:14,621 INFO  L136        SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2022-07-26 13:44:14,621 INFO  L138        SettingsManager]:  * NCSB implementation=INTSET_LAZY3
[2022-07-26 13:44:14,622 INFO  L138        SettingsManager]:  * Use old map elimination=false
[2022-07-26 13:44:14,622 INFO  L138        SettingsManager]:  * Use external solver (rank synthesis)=false
[2022-07-26 13:44:14,622 INFO  L138        SettingsManager]:  * Use only trivial implications for array writes=true
[2022-07-26 13:44:14,622 INFO  L138        SettingsManager]:  * Rank analysis=LINEAR_WITH_GUESSES
[2022-07-26 13:44:14,623 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-07-26 13:44:14,623 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-07-26 13:44:14,623 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-07-26 13:44:14,623 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-07-26 13:44:14,623 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-07-26 13:44:14,623 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-07-26 13:44:14,623 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=ASSUME
[2022-07-26 13:44:14,623 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=ASSUME
[2022-07-26 13:44:14,624 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=ASSUME
[2022-07-26 13:44:14,624 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-07-26 13:44:14,624 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-07-26 13:44:14,624 INFO  L138        SettingsManager]:  * Assume nondeterminstic values are in range=false
[2022-07-26 13:44:14,624 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-07-26 13:44:14,624 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=ASSUME
[2022-07-26 13:44:14,625 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-07-26 13:44:14,625 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-07-26 13:44:14,625 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-07-26 13:44:14,625 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-07-26 13:44:14,626 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-07-26 13:44:14,626 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-07-26 13:44:14,826 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-07-26 13:44:14,845 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-07-26 13:44:14,847 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-07-26 13:44:14,848 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-07-26 13:44:14,849 INFO  L275        PluginConnector]: CDTParser initialized
[2022-07-26 13:44:14,850 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/gcd-2.i
[2022-07-26 13:44:14,897 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba9402af1/1b1190490ec4454daddf3735e6d81e79/FLAG53506bd15
[2022-07-26 13:44:15,335 INFO  L306              CDTParser]: Found 1 translation units.
[2022-07-26 13:44:15,335 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i
[2022-07-26 13:44:15,348 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba9402af1/1b1190490ec4454daddf3735e6d81e79/FLAG53506bd15
[2022-07-26 13:44:15,359 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba9402af1/1b1190490ec4454daddf3735e6d81e79
[2022-07-26 13:44:15,361 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-07-26 13:44:15,362 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2022-07-26 13:44:15,363 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-07-26 13:44:15,363 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-07-26 13:44:15,372 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-07-26 13:44:15,372 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 01:44:15" (1/1) ...
[2022-07-26 13:44:15,373 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@285ce74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:44:15, skipping insertion in model container
[2022-07-26 13:44:15,373 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 01:44:15" (1/1) ...
[2022-07-26 13:44:15,384 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-07-26 13:44:15,431 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-07-26 13:44:15,640 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i[938,951]
[2022-07-26 13:44:15,821 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-07-26 13:44:15,829 INFO  L203         MainTranslator]: Completed pre-run
[2022-07-26 13:44:15,840 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i[938,951]
[2022-07-26 13:44:15,886 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-07-26 13:44:15,933 INFO  L208         MainTranslator]: Completed translation
[2022-07-26 13:44:15,934 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:44:15 WrapperNode
[2022-07-26 13:44:15,934 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-07-26 13:44:15,935 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-07-26 13:44:15,936 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-07-26 13:44:15,936 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-07-26 13:44:15,942 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:44:15" (1/1) ...
[2022-07-26 13:44:15,972 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:44:15" (1/1) ...
[2022-07-26 13:44:16,012 INFO  L137                Inliner]: procedures = 174, calls = 30, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 122
[2022-07-26 13:44:16,012 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-07-26 13:44:16,014 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-07-26 13:44:16,014 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-07-26 13:44:16,014 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-07-26 13:44:16,021 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:44:15" (1/1) ...
[2022-07-26 13:44:16,022 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:44:15" (1/1) ...
[2022-07-26 13:44:16,039 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:44:15" (1/1) ...
[2022-07-26 13:44:16,039 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:44:15" (1/1) ...
[2022-07-26 13:44:16,044 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:44:15" (1/1) ...
[2022-07-26 13:44:16,047 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:44:15" (1/1) ...
[2022-07-26 13:44:16,049 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:44:15" (1/1) ...
[2022-07-26 13:44:16,062 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-07-26 13:44:16,063 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-07-26 13:44:16,063 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-07-26 13:44:16,063 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-07-26 13:44:16,070 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:44:15" (1/1) ...
[2022-07-26 13:44:16,081 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-07-26 13:44:16,091 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-07-26 13:44:16,105 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 13:44:16,132 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 13:44:16,147 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-07-26 13:44:16,148 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-07-26 13:44:16,148 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-07-26 13:44:16,148 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-07-26 13:44:16,148 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-07-26 13:44:16,148 INFO  L130     BoogieDeclarations]: Found specification of procedure dec_a
[2022-07-26 13:44:16,148 INFO  L138     BoogieDeclarations]: Found implementation of procedure dec_a
[2022-07-26 13:44:16,148 INFO  L130     BoogieDeclarations]: Found specification of procedure dec_b
[2022-07-26 13:44:16,148 INFO  L138     BoogieDeclarations]: Found implementation of procedure dec_b
[2022-07-26 13:44:16,149 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-07-26 13:44:16,149 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-07-26 13:44:16,149 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-07-26 13:44:16,151 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 13:44:16,291 INFO  L234             CfgBuilder]: Building ICFG
[2022-07-26 13:44:16,300 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-07-26 13:44:16,504 INFO  L275             CfgBuilder]: Performing block encoding
[2022-07-26 13:44:16,538 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-07-26 13:44:16,539 INFO  L299             CfgBuilder]: Removed 2 assume(true) statements.
[2022-07-26 13:44:16,541 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 01:44:16 BoogieIcfgContainer
[2022-07-26 13:44:16,541 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-07-26 13:44:16,542 INFO  L113        PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2022-07-26 13:44:16,542 INFO  L271        PluginConnector]: Initializing BuchiAutomizer...
[2022-07-26 13:44:16,548 INFO  L275        PluginConnector]: BuchiAutomizer initialized
[2022-07-26 13:44:16,549 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2022-07-26 13:44:16,549 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.07 01:44:15" (1/3) ...
[2022-07-26 13:44:16,550 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14b97ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 01:44:16, skipping insertion in model container
[2022-07-26 13:44:16,550 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2022-07-26 13:44:16,550 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:44:15" (2/3) ...
[2022-07-26 13:44:16,551 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14b97ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 01:44:16, skipping insertion in model container
[2022-07-26 13:44:16,551 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2022-07-26 13:44:16,551 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 01:44:16" (3/3) ...
[2022-07-26 13:44:16,552 INFO  L322   chiAutomizerObserver]: Analyzing ICFG gcd-2.i
[2022-07-26 13:44:16,613 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2022-07-26 13:44:16,641 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 145 places, 152 transitions, 320 flow
[2022-07-26 13:44:16,682 INFO  L129       PetriNetUnfolder]: 12/148 cut-off events.
[2022-07-26 13:44:16,683 INFO  L130       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2022-07-26 13:44:16,686 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 157 conditions, 148 events. 12/148 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. 
[2022-07-26 13:44:16,687 INFO  L82        GeneralOperation]: Start removeDead. Operand has 145 places, 152 transitions, 320 flow
[2022-07-26 13:44:16,702 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 143 places, 148 transitions, 308 flow
[2022-07-26 13:44:16,705 INFO  L115   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-07-26 13:44:16,719 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 148 transitions, 308 flow
[2022-07-26 13:44:16,725 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 148 transitions, 308 flow
[2022-07-26 13:44:16,726 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 143 places, 148 transitions, 308 flow
[2022-07-26 13:44:16,771 INFO  L129       PetriNetUnfolder]: 12/148 cut-off events.
[2022-07-26 13:44:16,771 INFO  L130       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2022-07-26 13:44:16,772 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 157 conditions, 148 events. 12/148 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. 
[2022-07-26 13:44:16,773 INFO  L116        LiptonReduction]: Number of co-enabled transitions 308
[2022-07-26 13:44:34,028 WARN  L233               SmtUtils]: Spent 12.30s on a formula simplification that was a NOOP. DAG size: 98 (called from [L 277] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-07-26 13:44:34,221 INFO  L131        LiptonReduction]: Checked pairs total: 692
[2022-07-26 13:44:34,221 INFO  L133        LiptonReduction]: Total number of compositions: 172
[2022-07-26 13:44:34,238 INFO  L301   stractBuchiCegarLoop]: Interprodecural is true
[2022-07-26 13:44:34,238 INFO  L302   stractBuchiCegarLoop]: Hoare is false
[2022-07-26 13:44:34,239 INFO  L303   stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2022-07-26 13:44:34,239 INFO  L304   stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2022-07-26 13:44:34,239 INFO  L305   stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2022-07-26 13:44:34,239 INFO  L306   stractBuchiCegarLoop]: Difference is false
[2022-07-26 13:44:34,239 INFO  L307   stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2022-07-26 13:44:34,239 INFO  L311   stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2022-07-26 13:44:34,241 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states
[2022-07-26 13:44:34,286 INFO  L131   ngComponentsAnalysis]: Automaton has 14 accepting balls. 32
[2022-07-26 13:44:34,286 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-07-26 13:44:34,286 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2022-07-26 13:44:34,291 INFO  L150   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2022-07-26 13:44:34,291 INFO  L151   hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1]
[2022-07-26 13:44:34,292 INFO  L333   stractBuchiCegarLoop]: ======== Iteration 1 ============
[2022-07-26 13:44:34,292 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 51 states, but on-demand construction may add more states
[2022-07-26 13:44:34,302 INFO  L131   ngComponentsAnalysis]: Automaton has 14 accepting balls. 32
[2022-07-26 13:44:34,302 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-07-26 13:44:34,302 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2022-07-26 13:44:34,303 INFO  L150   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2022-07-26 13:44:34,303 INFO  L151   hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1]
[2022-07-26 13:44:34,307 INFO  L733   eck$LassoCheckResult]: Stem: 148#[ULTIMATE.startENTRY]don't care [570] ULTIMATE.startENTRY-->L729-2: Formula: (let ((.cse1 (select |v_#memory_int_In_1| 1)) (.cse0 (store |v_#valid_In_1| |v_ULTIMATE.start_start_~#t1~0#1.base_Out_2| 1))) (and (= v_~a~0_Out_6 |v_ULTIMATE.start_start_~a_in#1_Out_2|) (= (select |v_#valid_In_1| 1) 1) (= |v_ULTIMATE.start_start_#in~a_in#1_Out_2| |v_ULTIMATE.start_start_~a_in#1_Out_2|) (= |v_ULTIMATE.start_start_#in~b_in#1_Out_2| |v_ULTIMATE.start_start_~b_in#1_Out_2|) (not (= (ite (< 0 (mod |v_ULTIMATE.start_main_~a_in~0#1_Out_2| 4294967296)) 1 0) 0)) (= (select |v_#valid_In_1| 0) 0) (= 0 |v_#NULL.base_Out_2|) (= (store .cse0 |v_ULTIMATE.start_start_~#t2~0#1.base_Out_2| 1) |v_#valid_Out_2|) (= |v_#length_Out_2| (store (store |v_#length_In_1| |v_ULTIMATE.start_start_~#t1~0#1.base_Out_2| 4) |v_ULTIMATE.start_start_~#t2~0#1.base_Out_2| 4)) (= |v_#pthreadsForks_Out_2| (+ |v_#pthreadsForks_In_1| 1)) (= (select |v_#valid_In_1| 2) 1) (= (select .cse1 1) 0) (= 48 (select .cse1 0)) (= (select |v_#length_In_1| 2) 8) (= |v_#NULL.offset_Out_2| 0) (= (select |v_#valid_In_1| |v_ULTIMATE.start_start_~#t1~0#1.base_Out_2|) 0) (= |v_#pthreadsForks_In_1| |v_ULTIMATE.start_start_#t~pre3#1_Out_2|) (= |v_ULTIMATE.start_main_~a_in~0#1_Out_2| |v_ULTIMATE.start_start_#in~a_in#1_Out_2|) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_Out_14| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_Out_2|) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_Out_14| 0)) (= 0 (select .cse0 |v_ULTIMATE.start_start_~#t2~0#1.base_Out_2|)) (= |v_ULTIMATE.start_start_~b_in#1_Out_2| v_~b~0_Out_6) (= (ite (< 0 (mod |v_ULTIMATE.start_main_~b_in~0#1_Out_2| 4294967296)) 1 0) |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_Out_2|) (< |v_#StackHeapBarrier_In_1| |v_ULTIMATE.start_start_~#t1~0#1.base_Out_2|) (= (select |v_#length_In_1| 1) 2) (< 0 |v_#StackHeapBarrier_In_1|) (= |v_ULTIMATE.start_start_~#t2~0#1.offset_Out_2| 0) (= |v_ULTIMATE.start_main_~b_in~0#1_Out_2| |v_ULTIMATE.start_start_#in~b_in#1_Out_2|) (= (store |v_#memory_int_In_1| |v_ULTIMATE.start_start_~#t1~0#1.base_Out_2| (store (select |v_#memory_int_In_1| |v_ULTIMATE.start_start_~#t1~0#1.base_Out_2|) |v_ULTIMATE.start_start_~#t1~0#1.offset_Out_2| |v_ULTIMATE.start_start_#t~pre3#1_Out_2|)) |v_#memory_int_Out_2|) (= |v_ULTIMATE.start_start_~#t1~0#1.offset_Out_2| 0) (< |v_#StackHeapBarrier_In_1| |v_ULTIMATE.start_start_~#t2~0#1.base_Out_2|)))  InVars {#memory_int=|v_#memory_int_In_1|, #StackHeapBarrier=|v_#StackHeapBarrier_In_1|, #length=|v_#length_In_1|, #pthreadsForks=|v_#pthreadsForks_In_1|, #valid=|v_#valid_In_1|}  OutVars{ULTIMATE.start_start_~#t1~0#1.base=|v_ULTIMATE.start_start_~#t1~0#1.base_Out_2|, ULTIMATE.start_start_#t~pre3#1=|v_ULTIMATE.start_start_#t~pre3#1_Out_2|, #NULL.offset=|v_#NULL.offset_Out_2|, ULTIMATE.start_start_~#t2~0#1.offset=|v_ULTIMATE.start_start_~#t2~0#1.offset_Out_2|, ~a~0=v_~a~0_Out_6, ULTIMATE.start_start_~#t1~0#1.offset=|v_ULTIMATE.start_start_~#t1~0#1.offset_Out_2|, #pthreadsForks=|v_#pthreadsForks_Out_2|, ULTIMATE.start_start_~#t2~0#1.base=|v_ULTIMATE.start_start_~#t2~0#1.base_Out_2|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_Out_14|, ULTIMATE.start_start_#res#1=|v_ULTIMATE.start_start_#res#1_Out_2|, #length=|v_#length_Out_2|, ULTIMATE.start_start_#t~nondet6#1=|v_ULTIMATE.start_start_#t~nondet6#1_Out_2|, ULTIMATE.start_start_#t~mem8#1=|v_ULTIMATE.start_start_#t~mem8#1_Out_2|, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_Out_2|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_Out_6|, ULTIMATE.start_start_#in~b_in#1=|v_ULTIMATE.start_start_#in~b_in#1_Out_2|, ULTIMATE.start_main_~b_in~0#1=|v_ULTIMATE.start_main_~b_in~0#1_Out_2|, ULTIMATE.start_start_#in~a_in#1=|v_ULTIMATE.start_start_#in~a_in#1_Out_2|, ULTIMATE.start_start_~a_in#1=|v_ULTIMATE.start_start_~a_in#1_Out_2|, ULTIMATE.start_start_~b_in#1=|v_ULTIMATE.start_start_~b_in#1_Out_2|, #NULL.base=|v_#NULL.base_Out_2|, ULTIMATE.start_start_#t~pre5#1=|v_ULTIMATE.start_start_#t~pre5#1_Out_2|, ULTIMATE.start_start_#t~mem7#1=|v_ULTIMATE.start_start_#t~mem7#1_Out_2|, #StackHeapBarrier=|v_#StackHeapBarrier_In_1|, ULTIMATE.start_main_#t~nondet11#1=|v_ULTIMATE.start_main_#t~nondet11#1_Out_2|, ~b~0=v_~b~0_Out_6, #valid=|v_#valid_Out_2|, #memory_int=|v_#memory_int_Out_2|, ULTIMATE.start_main_#t~ret12#1=|v_ULTIMATE.start_main_#t~ret12#1_Out_6|, ULTIMATE.start_main_~a_in~0#1=|v_ULTIMATE.start_main_~a_in~0#1_Out_2|, ULTIMATE.start_start_#t~nondet4#1=|v_ULTIMATE.start_start_#t~nondet4#1_Out_2|, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_Out_2|}  AuxVars[]  AssignedVars[ULTIMATE.start_start_~#t1~0#1.base, ULTIMATE.start_start_#t~pre3#1, #NULL.offset, ULTIMATE.start_start_~#t2~0#1.offset, ~a~0, ULTIMATE.start_start_~#t1~0#1.offset, #pthreadsForks, ULTIMATE.start_start_~#t2~0#1.base, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_start_#res#1, #length, ULTIMATE.start_start_#t~nondet6#1, ULTIMATE.start_start_#t~mem8#1, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_start_#in~b_in#1, ULTIMATE.start_main_~b_in~0#1, ULTIMATE.start_start_#in~a_in#1, ULTIMATE.start_start_~a_in#1, ULTIMATE.start_start_~b_in#1, #NULL.base, ULTIMATE.start_start_#t~pre5#1, ULTIMATE.start_start_#t~mem7#1, ULTIMATE.start_main_#t~nondet11#1, ~b~0, #valid, #memory_int, ULTIMATE.start_main_#t~ret12#1, ULTIMATE.start_main_~a_in~0#1, ULTIMATE.start_start_#t~nondet4#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1] 151#[L729-2]don't care [396] L729-2-->dec_aENTRY: Formula: (and (= |v_dec_aThread1of1ForFork0_#in~arg#1.base_4| 0) (= |v_dec_aThread1of1ForFork0_#in~arg#1.offset_4| 0) (= v_dec_aThread1of1ForFork0_thidvar1_2 0) (= |v_ULTIMATE.start_start_#t~pre3#1_6| v_dec_aThread1of1ForFork0_thidvar0_2))  InVars {ULTIMATE.start_start_#t~pre3#1=|v_ULTIMATE.start_start_#t~pre3#1_6|}  OutVars{dec_aThread1of1ForFork0_~arg#1.offset=|v_dec_aThread1of1ForFork0_~arg#1.offset_4|, dec_aThread1of1ForFork0_thidvar0=v_dec_aThread1of1ForFork0_thidvar0_2, dec_aThread1of1ForFork0_#in~arg#1.base=|v_dec_aThread1of1ForFork0_#in~arg#1.base_4|, dec_aThread1of1ForFork0_thidvar1=v_dec_aThread1of1ForFork0_thidvar1_2, dec_aThread1of1ForFork0_#res#1.offset=|v_dec_aThread1of1ForFork0_#res#1.offset_4|, dec_aThread1of1ForFork0_#in~arg#1.offset=|v_dec_aThread1of1ForFork0_#in~arg#1.offset_4|, dec_aThread1of1ForFork0_#res#1.base=|v_dec_aThread1of1ForFork0_#res#1.base_4|, ULTIMATE.start_start_#t~pre3#1=|v_ULTIMATE.start_start_#t~pre3#1_6|, dec_aThread1of1ForFork0_~arg#1.base=|v_dec_aThread1of1ForFork0_~arg#1.base_4|}  AuxVars[]  AssignedVars[dec_aThread1of1ForFork0_~arg#1.offset, dec_aThread1of1ForFork0_thidvar0, dec_aThread1of1ForFork0_#in~arg#1.base, dec_aThread1of1ForFork0_thidvar1, dec_aThread1of1ForFork0_#res#1.offset, dec_aThread1of1ForFork0_#in~arg#1.offset, dec_aThread1of1ForFork0_#res#1.base, dec_aThread1of1ForFork0_~arg#1.base] 153#[dec_aENTRY, L729-3]don't care [380] dec_aENTRY-->L711-1: Formula: (and (= |v_dec_aThread1of1ForFork0_#in~arg#1.offset_1| |v_dec_aThread1of1ForFork0_~arg#1.offset_1|) (= |v_dec_aThread1of1ForFork0_#in~arg#1.base_1| |v_dec_aThread1of1ForFork0_~arg#1.base_1|))  InVars {dec_aThread1of1ForFork0_#in~arg#1.base=|v_dec_aThread1of1ForFork0_#in~arg#1.base_1|, dec_aThread1of1ForFork0_#in~arg#1.offset=|v_dec_aThread1of1ForFork0_#in~arg#1.offset_1|}  OutVars{dec_aThread1of1ForFork0_~arg#1.offset=|v_dec_aThread1of1ForFork0_~arg#1.offset_1|, dec_aThread1of1ForFork0_~arg#1.base=|v_dec_aThread1of1ForFork0_~arg#1.base_1|, dec_aThread1of1ForFork0_#in~arg#1.base=|v_dec_aThread1of1ForFork0_#in~arg#1.base_1|, dec_aThread1of1ForFork0_#in~arg#1.offset=|v_dec_aThread1of1ForFork0_#in~arg#1.offset_1|}  AuxVars[]  AssignedVars[dec_aThread1of1ForFork0_~arg#1.offset, dec_aThread1of1ForFork0_~arg#1.base] 157#[L711-1, L729-3]don't care 
[2022-07-26 13:44:34,308 INFO  L735   eck$LassoCheckResult]: Loop: 157#[L711-1, L729-3]don't care [383] L711-1-->L711: Formula: (not (= (mod v_~a~0_3 4294967296) (mod v_~b~0_3 4294967296)))  InVars {~a~0=v_~a~0_3, ~b~0=v_~b~0_3}  OutVars{~a~0=v_~a~0_3, ~b~0=v_~b~0_3}  AuxVars[]  AssignedVars[] 165#[L711, L729-3]don't care [385] L711-->L711-1: Formula: (let ((.cse0 (< (mod v_~b~0_30 4294967296) (mod v_~a~0_30 4294967296)))) (or (and .cse0 (= v_~a~0_29 (+ v_~a~0_30 (* (- 1) v_~b~0_30)))) (and (not .cse0) (= v_~a~0_29 v_~a~0_30))))  InVars {~a~0=v_~a~0_30, ~b~0=v_~b~0_30}  OutVars{~a~0=v_~a~0_29, ~b~0=v_~b~0_30}  AuxVars[]  AssignedVars[~a~0] 157#[L711-1, L729-3]don't care 
[2022-07-26 13:44:34,313 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-07-26 13:44:34,313 INFO  L85        PathProgramCache]: Analyzing trace with hash 590217, now seen corresponding path program 1 times
[2022-07-26 13:44:34,321 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-07-26 13:44:34,321 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74016621]
[2022-07-26 13:44:34,321 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-07-26 13:44:34,322 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-07-26 13:44:34,428 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-07-26 13:44:34,429 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-07-26 13:44:34,453 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-07-26 13:44:34,470 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-07-26 13:44:34,473 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-07-26 13:44:34,473 INFO  L85        PathProgramCache]: Analyzing trace with hash 13219, now seen corresponding path program 1 times
[2022-07-26 13:44:34,473 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-07-26 13:44:34,473 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160477189]
[2022-07-26 13:44:34,473 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-07-26 13:44:34,474 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-07-26 13:44:34,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-07-26 13:44:34,488 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-07-26 13:44:34,495 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-07-26 13:44:34,497 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-07-26 13:44:34,499 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-07-26 13:44:34,499 INFO  L85        PathProgramCache]: Analyzing trace with hash 567210795, now seen corresponding path program 1 times
[2022-07-26 13:44:34,499 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-07-26 13:44:34,499 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803050293]
[2022-07-26 13:44:34,499 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-07-26 13:44:34,499 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-07-26 13:44:34,550 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-07-26 13:44:34,551 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-07-26 13:44:34,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-07-26 13:44:34,620 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-07-26 13:44:35,196 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.07 01:44:35 BoogieIcfgContainer
[2022-07-26 13:44:35,196 INFO  L132        PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2022-07-26 13:44:35,197 INFO  L158              Benchmark]: Toolchain (without parser) took 19835.04ms. Allocated memory was 191.9MB in the beginning and 270.5MB in the end (delta: 78.6MB). Free memory was 131.5MB in the beginning and 122.9MB in the end (delta: 8.6MB). Peak memory consumption was 88.1MB. Max. memory is 8.0GB.
[2022-07-26 13:44:35,197 INFO  L158              Benchmark]: CDTParser took 0.17ms. Allocated memory is still 191.9MB. Free memory is still 149.3MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-07-26 13:44:35,198 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 571.46ms. Allocated memory was 191.9MB in the beginning and 270.5MB in the end (delta: 78.6MB). Free memory was 131.3MB in the beginning and 230.2MB in the end (delta: -98.8MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB.
[2022-07-26 13:44:35,199 INFO  L158              Benchmark]: Boogie Procedure Inliner took 77.24ms. Allocated memory is still 270.5MB. Free memory was 229.6MB in the beginning and 227.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-07-26 13:44:35,199 INFO  L158              Benchmark]: Boogie Preprocessor took 48.37ms. Allocated memory is still 270.5MB. Free memory was 227.5MB in the beginning and 226.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-07-26 13:44:35,200 INFO  L158              Benchmark]: RCFGBuilder took 478.40ms. Allocated memory is still 270.5MB. Free memory was 226.0MB in the beginning and 208.7MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB.
[2022-07-26 13:44:35,200 INFO  L158              Benchmark]: BuchiAutomizer took 18654.34ms. Allocated memory is still 270.5MB. Free memory was 208.7MB in the beginning and 122.9MB in the end (delta: 85.8MB). Peak memory consumption was 86.3MB. Max. memory is 8.0GB.
[2022-07-26 13:44:35,203 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.17ms. Allocated memory is still 191.9MB. Free memory is still 149.3MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 571.46ms. Allocated memory was 191.9MB in the beginning and 270.5MB in the end (delta: 78.6MB). Free memory was 131.3MB in the beginning and 230.2MB in the end (delta: -98.8MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 77.24ms. Allocated memory is still 270.5MB. Free memory was 229.6MB in the beginning and 227.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 48.37ms. Allocated memory is still 270.5MB. Free memory was 227.5MB in the beginning and 226.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * RCFGBuilder took 478.40ms. Allocated memory is still 270.5MB. Free memory was 226.0MB in the beginning and 208.7MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB.
 * BuchiAutomizer took 18654.34ms. Allocated memory is still 270.5MB. Free memory was 208.7MB in the beginning and 122.9MB in the end (delta: 85.8MB). Peak memory consumption was 86.3MB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: Constructed decomposition of program
    Trivial decomposition into one nonterminating module.
  - StatisticsResult: Timing statistics
    BüchiAutomizer plugin needed 18.5s and 1 iterations.  TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. 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 [0, 0, 0, 0, 0].	InterpolantCoveringCapabilityFinite: 0/0	InterpolantCoveringCapabilityBuchi: 0/0	HoareTripleCheckerStatistics: 	LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0	LassoNonterminationAnalysisSatUnbounded: 0	LassoNonterminationAnalysisUnsat: 0	LassoNonterminationAnalysisUnknown: 0	LassoNonterminationAnalysisTime: 0.0s	InitialAbstractionConstructionTime: 17.6s
  - TerminationAnalysisResult: Nontermination possible
    Buchi Automizer proved that your program is nonterminating for some inputs
  - FixpointNonTerminationResult [Line: 709]: Nontermination argument in form of an infinite program execution.
    Nontermination argument in form of an infinite execution
State at position 0 is
{}
State at position 1 is
{\old(a_in)=1, \old(b_in)=2, \old(cond)=1, \result=0, \result=0, \result={0:0}, a=1, a_in=1, a_in=1, arg={0:0}, arg={0:0}, b=2, b_in=2, b_in=2, cond=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@345783cf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a85f0e9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d9d88b in0,0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@608ef24b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77368fea in0,0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@27199f77=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@5198e7be=0, t1={4:0}, t2={3:0}}
  - StatisticsResult: NonterminationArgumentStatistics
    Fixpoint
  - NonterminatingLassoResult [Line: 709]: Nonterminating execution
    Found a nonterminating execution for the following lasso shaped sequence of statements.
Stem:
[L695]               0  unsigned a, b;
[L747]               0  unsigned a_in=__VERIFIER_nondet_uint();
[L748]               0  unsigned b_in=__VERIFIER_nondet_uint();
[L749]  CALL         0  assume_abort_if_not(a_in>0)
[L15]   COND TRUE    0  !cond
[L749]  RET          0  assume_abort_if_not(a_in>0)
[L750]  CALL         0  assume_abort_if_not(b_in>0)
[L15]   COND FALSE   0  !(!cond)
[L750]  RET          0  assume_abort_if_not(b_in>0)
[L751]  CALL         0  start(a_in, b_in)
[L726]               0  a=a_in
[L727]               0  b=b_in
[L728]               0  pthread_t t1, t2;
[L729]  FCALL, FORK  0  pthread_create(&t1, 0, dec_a, 0)
Loop:
[L709]  COND TRUE  a!=b
[L711]  CALL       __VERIFIER_atomic_dec_a()
[L698]  COND TRUE  a>b
[L699]             a=a-b
[L711]  RET        __VERIFIER_atomic_dec_a()
End of lasso representation.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 17.5s, 143 PlacesBefore, 22 PlacesAfterwards, 148 TransitionsBefore, 17 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 8 FixpointIterations, 115 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 34 TrivialYvCompositions, 4 ConcurrentYvCompositions, 10 ChoiceCompositions, 172 TotalNumberOfCompositions, 692 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 469, positive: 433, positive conditional: 0, positive unconditional: 433, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 193, positive: 190, positive conditional: 0, positive unconditional: 190, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 193, positive: 187, positive conditional: 0, positive unconditional: 187, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 45, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 469, positive: 243, positive conditional: 0, positive unconditional: 243, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 193, unknown conditional: 0, unknown unconditional: 193] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3
RESULT: Ultimate proved your program to be incorrect!
[2022-07-26 13:44:35,255 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...