./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bdd7db80fe0b58d12f0d240e0ace6f39b607cc6e ........................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 21:49:36,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:49:36,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:49:36,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:49:36,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:49:36,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:49:36,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:49:36,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:49:36,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:49:36,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:49:36,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:49:36,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:49:36,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:49:36,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:49:36,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:49:36,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:49:36,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:49:36,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:49:36,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:49:36,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:49:36,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:49:36,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:49:36,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:49:36,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:49:36,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:49:36,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:49:36,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:49:36,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:49:36,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:49:36,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:49:36,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:49:36,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:49:36,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:49:36,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:49:36,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:49:36,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:49:36,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:49:36,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:49:36,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:49:36,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:49:36,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:49:36,630 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:49:36,646 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:49:36,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:49:36,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:49:36,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:49:36,649 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:49:36,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:49:36,649 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:49:36,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:49:36,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:49:36,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:49:36,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:49:36,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:49:36,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:49:36,654 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:49:36,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:49:36,655 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:49:36,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:49:36,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:49:36,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:49:36,656 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:49:36,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:49:36,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:49:36,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:49:36,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:49:36,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:49:36,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:49:36,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:49:36,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:49:36,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:49:36,662 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdd7db80fe0b58d12f0d240e0ace6f39b607cc6e [2020-07-28 21:49:36,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:49:37,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:49:37,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:49:37,010 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:49:37,011 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:49:37,012 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i [2020-07-28 21:49:37,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a74621831/d2b97481c7ed4c939e493cf1ba6a9b60/FLAG0db87ec84 [2020-07-28 21:49:37,704 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:49:37,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i [2020-07-28 21:49:37,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a74621831/d2b97481c7ed4c939e493cf1ba6a9b60/FLAG0db87ec84 [2020-07-28 21:49:37,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a74621831/d2b97481c7ed4c939e493cf1ba6a9b60 [2020-07-28 21:49:37,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:49:37,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:49:37,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:49:37,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:49:37,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:49:37,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:49:37" (1/1) ... [2020-07-28 21:49:37,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191bdc86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:37, skipping insertion in model container [2020-07-28 21:49:37,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:49:37" (1/1) ... [2020-07-28 21:49:37,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:49:38,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:49:38,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:49:38,540 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:49:38,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:49:38,687 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:49:38,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:38 WrapperNode [2020-07-28 21:49:38,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:49:38,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:49:38,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:49:38,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:49:38,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:38" (1/1) ... [2020-07-28 21:49:38,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:38" (1/1) ... [2020-07-28 21:49:38,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:49:38,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:49:38,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:49:38,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:49:38,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:38" (1/1) ... [2020-07-28 21:49:38,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:38" (1/1) ... [2020-07-28 21:49:38,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:38" (1/1) ... [2020-07-28 21:49:38,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:38" (1/1) ... [2020-07-28 21:49:38,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:38" (1/1) ... [2020-07-28 21:49:38,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:38" (1/1) ... [2020-07-28 21:49:38,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:38" (1/1) ... [2020-07-28 21:49:38,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:49:38,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:49:38,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:49:38,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:49:38,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:49:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-07-28 21:49:38,868 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-07-28 21:49:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-07-28 21:49:38,868 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-07-28 21:49:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:49:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:49:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:49:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:49:38,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:49:38,871 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-07-28 21:49:39,326 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:49:39,327 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-07-28 21:49:39,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:49:39 BoogieIcfgContainer [2020-07-28 21:49:39,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:49:39,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:49:39,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:49:39,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:49:39,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:49:37" (1/3) ... [2020-07-28 21:49:39,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a677a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:49:39, skipping insertion in model container [2020-07-28 21:49:39,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:38" (2/3) ... [2020-07-28 21:49:39,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a677a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:49:39, skipping insertion in model container [2020-07-28 21:49:39,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:49:39" (3/3) ... [2020-07-28 21:49:39,340 INFO L109 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2020-07-28 21:49:39,350 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:49:39,351 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:49:39,359 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:49:39,360 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:49:39,390 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,390 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,391 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,391 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,391 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,392 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,392 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,393 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,393 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,401 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,401 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,402 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,408 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,408 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,408 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,409 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,409 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:39,425 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:49:39,442 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:49:39,442 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:49:39,443 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:49:39,443 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:49:39,443 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:49:39,443 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:49:39,443 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:49:39,444 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:49:39,459 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 61 transitions, 132 flow [2020-07-28 21:49:39,461 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 132 flow [2020-07-28 21:49:39,505 INFO L129 PetriNetUnfolder]: 4/71 cut-off events. [2020-07-28 21:49:39,505 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:49:39,512 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 71 events. 4/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2020-07-28 21:49:39,514 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 132 flow [2020-07-28 21:49:39,541 INFO L129 PetriNetUnfolder]: 4/71 cut-off events. [2020-07-28 21:49:39,541 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:49:39,542 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 71 events. 4/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2020-07-28 21:49:39,546 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 692 [2020-07-28 21:49:39,547 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:49:41,117 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-07-28 21:49:41,783 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-07-28 21:49:41,890 INFO L206 etLargeBlockEncoding]: Checked pairs total: 529 [2020-07-28 21:49:41,890 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-07-28 21:49:41,895 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-07-28 21:49:41,910 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-07-28 21:49:41,913 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-07-28 21:49:41,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-07-28 21:49:41,938 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:49:41,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-07-28 21:49:41,943 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-07-28 21:49:41,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:49:41,949 INFO L82 PathProgramCache]: Analyzing trace with hash 245288, now seen corresponding path program 1 times [2020-07-28 21:49:41,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:49:41,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264871082] [2020-07-28 21:49:41,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:49:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:49:42,202 INFO L280 TraceCheckUtils]: 0: Hoare triple {155#true} [219] ULTIMATE.startENTRY-->L704: Formula: (let ((.cse1 (store |#valid_In1867127057| 0 0))) (let ((.cse0 (store .cse1 |ULTIMATE.start_main_~#t1~0.base_Out1867127057| 1))) (and (= 0 ~x~0_Out1867127057) (= 0 |#NULL.base_Out1867127057|) (= (select .cse0 |ULTIMATE.start_main_~#t2~0.base_Out1867127057|) 0) (= 1 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out1867127057|) (= |ULTIMATE.start_main_#in~argv.offset_Out1867127057| ULTIMATE.start_main_~argv.offset_Out1867127057) (< 0 ~n~0_Out1867127057) (= |#length_Out1867127057| (store (store |#length_In1867127057| |ULTIMATE.start_main_~#t1~0.base_Out1867127057| 4) |ULTIMATE.start_main_~#t2~0.base_Out1867127057| 4)) (= |ULTIMATE.start_#in~argc_In1867127057| |ULTIMATE.start_main_#in~argc_Out1867127057|) (= (store .cse0 |ULTIMATE.start_main_~#t2~0.base_Out1867127057| 1) |#valid_Out1867127057|) (< |#StackHeapBarrier_In1867127057| |ULTIMATE.start_main_~#t2~0.base_Out1867127057|) (= |ULTIMATE.start_main_~#t1~0.offset_Out1867127057| 0) (= (store |#memory_int_In1867127057| |ULTIMATE.start_main_~#t1~0.base_Out1867127057| (store (select |#memory_int_In1867127057| |ULTIMATE.start_main_~#t1~0.base_Out1867127057|) |ULTIMATE.start_main_~#t1~0.offset_Out1867127057| 0)) |#memory_int_Out1867127057|) (= |ULTIMATE.start_main_#in~argc_Out1867127057| ULTIMATE.start_main_~argc_Out1867127057) (= ULTIMATE.start_assume_abort_if_not_~cond_Out1867127057 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out1867127057|) (= |ULTIMATE.start_main_#in~argv.base_Out1867127057| ULTIMATE.start_main_~argv.base_Out1867127057) (= 0 (select .cse1 |ULTIMATE.start_main_~#t1~0.base_Out1867127057|)) (= 0 |#NULL.offset_Out1867127057|) (= |ULTIMATE.start_main_#in~argv.offset_Out1867127057| |ULTIMATE.start_#in~argv.offset_In1867127057|) (< 0 |#StackHeapBarrier_In1867127057|) (< |#StackHeapBarrier_In1867127057| |ULTIMATE.start_main_~#t1~0.base_Out1867127057|) (<= ~n~0_Out1867127057 2147483647) (= |ULTIMATE.start_#in~argv.base_In1867127057| |ULTIMATE.start_main_#in~argv.base_Out1867127057|) (= |ULTIMATE.start_main_~#t2~0.offset_Out1867127057| 0)))) InVars {#StackHeapBarrier=|#StackHeapBarrier_In1867127057|, #valid=|#valid_In1867127057|, #memory_int=|#memory_int_In1867127057|, #length=|#length_In1867127057|, ULTIMATE.start_#in~argc=|ULTIMATE.start_#in~argc_In1867127057|, ULTIMATE.start_#in~argv.offset=|ULTIMATE.start_#in~argv.offset_In1867127057|, ULTIMATE.start_#in~argv.base=|ULTIMATE.start_#in~argv.base_In1867127057|} OutVars{ULTIMATE.start_main_~argv.offset=ULTIMATE.start_main_~argv.offset_Out1867127057, ULTIMATE.start_main_#t~nondet5=|ULTIMATE.start_main_#t~nondet5_Out1867127057|, ULTIMATE.start_main_#t~nondet2=|ULTIMATE.start_main_#t~nondet2_Out1867127057|, ULTIMATE.start_main_#t~nondet3=|ULTIMATE.start_main_#t~nondet3_Out1867127057|, #NULL.offset=|#NULL.offset_Out1867127057|, ULTIMATE.start_#in~argv.offset=|ULTIMATE.start_#in~argv.offset_In1867127057|, ULTIMATE.start_main_#t~post4=|ULTIMATE.start_main_#t~post4_Out1867127057|, ULTIMATE.start_main_~argv.base=ULTIMATE.start_main_~argv.base_Out1867127057, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out1867127057, ULTIMATE.start_main_~argc=ULTIMATE.start_main_~argc_Out1867127057, #length=|#length_Out1867127057|, ULTIMATE.start_#in~argc=|ULTIMATE.start_#in~argc_In1867127057|, ULTIMATE.start_main_~#t2~0.base=|ULTIMATE.start_main_~#t2~0.base_Out1867127057|, ULTIMATE.start_#in~argv.base=|ULTIMATE.start_#in~argv.base_In1867127057|, ULTIMATE.start_main_#in~argv.base=|ULTIMATE.start_main_#in~argv.base_Out1867127057|, ULTIMATE.start_main_#in~argv.offset=|ULTIMATE.start_main_#in~argv.offset_Out1867127057|, ULTIMATE.start_main_~#t2~0.offset=|ULTIMATE.start_main_~#t2~0.offset_Out1867127057|, ULTIMATE.start_main_~i~0=ULTIMATE.start_main_~i~0_Out1867127057, #NULL.base=|#NULL.base_Out1867127057|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_Out1867127057|, ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_Out1867127057|, #StackHeapBarrier=|#StackHeapBarrier_In1867127057|, ULTIMATE.start_main_#res=|ULTIMATE.start_main_#res_Out1867127057|, #valid=|#valid_Out1867127057|, ULTIMATE.start_main_#in~argc=|ULTIMATE.start_main_#in~argc_Out1867127057|, #memory_int=|#memory_int_Out1867127057|, ~n~0=~n~0_Out1867127057, ~x~0=~x~0_Out1867127057, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_Out1867127057|} AuxVars[] AssignedVars[ULTIMATE.start_main_~argv.offset, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~argv.base, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_~argc, #length, ULTIMATE.start_main_~#t2~0.base, ULTIMATE.start_main_#in~argv.base, ULTIMATE.start_main_#in~argv.offset, ULTIMATE.start_main_~#t2~0.offset, ULTIMATE.start_main_~i~0, #NULL.base, ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_~#t1~0.base, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_#in~argc, #memory_int, ~n~0, ~x~0, ULTIMATE.start_main_~#t1~0.offset] {157#(and (= 0 ~x~0) (<= 1 ~n~0))} is VALID [2020-07-28 21:49:42,204 INFO L280 TraceCheckUtils]: 1: Hoare triple {157#(and (= 0 ~x~0) (<= 1 ~n~0))} [156] L704-->thr1ENTRY: Formula: (and (= 0 |v_thr1Thread1of1ForFork0_#in~arg.base_3|) (= 0 v_thr1Thread1of1ForFork0_thidvar0_2) (= |v_thr1Thread1of1ForFork0_#in~arg.offset_3| 0)) InVars {} OutVars{thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond=|v_thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond_4|, thr1Thread1of1ForFork0_#in~arg.offset=|v_thr1Thread1of1ForFork0_#in~arg.offset_3|, thr1Thread1of1ForFork0_~arg.offset=v_thr1Thread1of1ForFork0_~arg.offset_3, thr1Thread1of1ForFork0_#res.base=|v_thr1Thread1of1ForFork0_#res.base_3|, thr1Thread1of1ForFork0_~arg.base=v_thr1Thread1of1ForFork0_~arg.base_3, thr1Thread1of1ForFork0_thidvar0=v_thr1Thread1of1ForFork0_thidvar0_2, thr1Thread1of1ForFork0_#in~arg.base=|v_thr1Thread1of1ForFork0_#in~arg.base_3|, thr1Thread1of1ForFork0___VERIFIER_assert_~cond=v_thr1Thread1of1ForFork0___VERIFIER_assert_~cond_6, thr1Thread1of1ForFork0_#res.offset=|v_thr1Thread1of1ForFork0_#res.offset_3|} AuxVars[] AssignedVars[thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond, thr1Thread1of1ForFork0_#in~arg.offset, thr1Thread1of1ForFork0_~arg.offset, thr1Thread1of1ForFork0_#res.base, thr1Thread1of1ForFork0_~arg.base, thr1Thread1of1ForFork0_thidvar0, thr1Thread1of1ForFork0_#in~arg.base, thr1Thread1of1ForFork0___VERIFIER_assert_~cond, thr1Thread1of1ForFork0_#res.offset] {157#(and (= 0 ~x~0) (<= 1 ~n~0))} is VALID [2020-07-28 21:49:42,205 INFO L280 TraceCheckUtils]: 2: Hoare triple {157#(and (= 0 ~x~0) (<= 1 ~n~0))} [202] thr1ENTRY-->thr1Err0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_thr1Thread1of1ForFork0___VERIFIER_assert_~cond_17 0) (= v_thr1Thread1of1ForFork0___VERIFIER_assert_~cond_17 |v_thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond_13|) (not (< v_~x~0_24 v_~n~0_24)) (= |v_thr1Thread1of1ForFork0_#in~arg.base_11| v_thr1Thread1of1ForFork0_~arg.base_11) (= v_thr1Thread1of1ForFork0_~arg.offset_11 |v_thr1Thread1of1ForFork0_#in~arg.offset_11|)) InVars {thr1Thread1of1ForFork0_#in~arg.offset=|v_thr1Thread1of1ForFork0_#in~arg.offset_11|, thr1Thread1of1ForFork0_#in~arg.base=|v_thr1Thread1of1ForFork0_#in~arg.base_11|, ~n~0=v_~n~0_24, ~x~0=v_~x~0_24} OutVars{thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond=|v_thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond_13|, thr1Thread1of1ForFork0_#in~arg.offset=|v_thr1Thread1of1ForFork0_#in~arg.offset_11|, thr1Thread1of1ForFork0_~arg.offset=v_thr1Thread1of1ForFork0_~arg.offset_11, thr1Thread1of1ForFork0_~arg.base=v_thr1Thread1of1ForFork0_~arg.base_11, thr1Thread1of1ForFork0_#in~arg.base=|v_thr1Thread1of1ForFork0_#in~arg.base_11|, thr1Thread1of1ForFork0___VERIFIER_assert_~cond=v_thr1Thread1of1ForFork0___VERIFIER_assert_~cond_17, ~n~0=v_~n~0_24, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond, thr1Thread1of1ForFork0_~arg.offset, thr1Thread1of1ForFork0_~arg.base, thr1Thread1of1ForFork0___VERIFIER_assert_~cond] {156#false} is VALID [2020-07-28 21:49:42,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:49:42,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264871082] [2020-07-28 21:49:42,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:49:42,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:49:42,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383213528] [2020-07-28 21:49:42,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-07-28 21:49:42,221 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:49:42,226 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:49:42,237 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:49:42,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:49:42,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:49:42,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:49:42,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:49:42,253 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-07-28 21:49:42,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:49:42,325 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-07-28 21:49:42,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:49:42,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-07-28 21:49:42,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:49:42,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:49:42,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2020-07-28 21:49:42,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:49:42,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2020-07-28 21:49:42,333 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 17 transitions. [2020-07-28 21:49:42,360 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:49:42,372 INFO L225 Difference]: With dead ends: 35 [2020-07-28 21:49:42,373 INFO L226 Difference]: Without dead ends: 31 [2020-07-28 21:49:42,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:49:42,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-07-28 21:49:42,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:42,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-07-28 21:49:42,414 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:49:42,415 INFO L82 GeneralOperation]: Start isEquivalent. First operand 31 states. Second operand 31 states. [2020-07-28 21:49:42,416 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand 31 states. [2020-07-28 21:49:42,416 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 31 states. [2020-07-28 21:49:42,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:49:42,420 INFO L93 Difference]: Finished difference Result 31 states and 51 transitions. [2020-07-28 21:49:42,421 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-07-28 21:49:42,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:49:42,421 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:49:42,422 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand 31 states. [2020-07-28 21:49:42,422 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 31 states. [2020-07-28 21:49:42,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:49:42,426 INFO L93 Difference]: Finished difference Result 31 states and 51 transitions. [2020-07-28 21:49:42,426 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-07-28 21:49:42,427 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:49:42,427 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:49:42,427 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:49:42,428 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:49:42,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-07-28 21:49:42,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-07-28 21:49:42,432 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-07-28 21:49:42,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:49:42,433 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-07-28 21:49:42,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:49:42,433 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-07-28 21:49:42,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 21:49:42,434 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:49:42,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:49:42,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:49:42,434 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-07-28 21:49:42,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:49:42,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1115005406, now seen corresponding path program 1 times [2020-07-28 21:49:42,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:49:42,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506900120] [2020-07-28 21:49:42,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:49:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 21:49:42,487 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 21:49:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 21:49:42,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 21:49:42,547 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 21:49:42,548 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 21:49:42,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:49:42,549 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-07-28 21:49:42,554 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [219] [219] ULTIMATE.startENTRY-->L704: Formula: (let ((.cse1 (store |#valid_In1867127057| 0 0))) (let ((.cse0 (store .cse1 |ULTIMATE.start_main_~#t1~0.base_Out1867127057| 1))) (and (= 0 ~x~0_Out1867127057) (= 0 |#NULL.base_Out1867127057|) (= (select .cse0 |ULTIMATE.start_main_~#t2~0.base_Out1867127057|) 0) (= 1 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out1867127057|) (= |ULTIMATE.start_main_#in~argv.offset_Out1867127057| ULTIMATE.start_main_~argv.offset_Out1867127057) (< 0 ~n~0_Out1867127057) (= |#length_Out1867127057| (store (store |#length_In1867127057| |ULTIMATE.start_main_~#t1~0.base_Out1867127057| 4) |ULTIMATE.start_main_~#t2~0.base_Out1867127057| 4)) (= |ULTIMATE.start_#in~argc_In1867127057| |ULTIMATE.start_main_#in~argc_Out1867127057|) (= (store .cse0 |ULTIMATE.start_main_~#t2~0.base_Out1867127057| 1) |#valid_Out1867127057|) (< |#StackHeapBarrier_In1867127057| |ULTIMATE.start_main_~#t2~0.base_Out1867127057|) (= |ULTIMATE.start_main_~#t1~0.offset_Out1867127057| 0) (= (store |#memory_int_In1867127057| |ULTIMATE.start_main_~#t1~0.base_Out1867127057| (store (select |#memory_int_In1867127057| |ULTIMATE.start_main_~#t1~0.base_Out1867127057|) |ULTIMATE.start_main_~#t1~0.offset_Out1867127057| 0)) |#memory_int_Out1867127057|) (= |ULTIMATE.start_main_#in~argc_Out1867127057| ULTIMATE.start_main_~argc_Out1867127057) (= ULTIMATE.start_assume_abort_if_not_~cond_Out1867127057 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out1867127057|) (= |ULTIMATE.start_main_#in~argv.base_Out1867127057| ULTIMATE.start_main_~argv.base_Out1867127057) (= 0 (select .cse1 |ULTIMATE.start_main_~#t1~0.base_Out1867127057|)) (= 0 |#NULL.offset_Out1867127057|) (= |ULTIMATE.start_main_#in~argv.offset_Out1867127057| |ULTIMATE.start_#in~argv.offset_In1867127057|) (< 0 |#StackHeapBarrier_In1867127057|) (< |#StackHeapBarrier_In1867127057| |ULTIMATE.start_main_~#t1~0.base_Out1867127057|) (<= ~n~0_Out1867127057 2147483647) (= |ULTIMATE.start_#in~argv.base_In1867127057| |ULTIMATE.start_main_#in~argv.base_Out1867127057|) (= |ULTIMATE.start_main_~#t2~0.offset_Out1867127057| 0)))) InVars {#StackHeapBarrier=|#StackHeapBarrier_In1867127057|, #valid=|#valid_In1867127057|, #memory_int=|#memory_int_In1867127057|, #length=|#length_In1867127057|, ULTIMATE.start_#in~argc=|ULTIMATE.start_#in~argc_In1867127057|, ULTIMATE.start_#in~argv.offset=|ULTIMATE.start_#in~argv.offset_In1867127057|, ULTIMATE.start_#in~argv.base=|ULTIMATE.start_#in~argv.base_In1867127057|} OutVars{ULTIMATE.start_main_~argv.offset=ULTIMATE.start_main_~argv.offset_Out1867127057, ULTIMATE.start_main_#t~nondet5=|ULTIMATE.start_main_#t~nondet5_Out1867127057|, ULTIMATE.start_main_#t~nondet2=|ULTIMATE.start_main_#t~nondet2_Out1867127057|, ULTIMATE.start_main_#t~nondet3=|ULTIMATE.start_main_#t~nondet3_Out1867127057|, #NULL.offset=|#NULL.offset_Out1867127057|, ULTIMATE.start_#in~argv.offset=|ULTIMATE.start_#in~argv.offset_In1867127057|, ULTIMATE.start_main_#t~post4=|ULTIMATE.start_main_#t~post4_Out1867127057|, ULTIMATE.start_main_~argv.base=ULTIMATE.start_main_~argv.base_Out1867127057, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out1867127057, ULTIMATE.start_main_~argc=ULTIMATE.start_main_~argc_Out1867127057, #length=|#length_Out1867127057|, ULTIMATE.start_#in~argc=|ULTIMATE.start_#in~argc_In1867127057|, ULTIMATE.start_main_~#t2~0.base=|ULTIMATE.start_main_~#t2~0.base_Out1867127057|, ULTIMATE.start_#in~argv.base=|ULTIMATE.start_#in~argv.base_In1867127057|, ULTIMATE.start_main_#in~argv.base=|ULTIMATE.start_main_#in~argv.base_Out1867127057|, ULTIMATE.start_main_#in~argv.offset=|ULTIMATE.start_main_#in~argv.offset_Out1867127057|, ULTIMATE.start_main_~#t2~0.offset=|ULTIMATE.start_main_~#t2~0.offset_Out1867127057|, ULTIMATE.start_main_~i~0=ULTIMATE.start_main_~i~0_Out1867127057, #NULL.base=|#NULL.base_Out1867127057|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_Out1867127057|, ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_Out1867127057|, #StackHeapBarrier=|#StackHeapBarrier_In1867127057|, ULTIMATE.start_main_#res=|ULTIMATE.start_main_#res_Out1867127057|, #valid=|#valid_Out1867127057|, ULTIMATE.start_main_#in~argc=|ULTIMATE.start_main_#in~argc_Out1867127057|, #memory_int=|#memory_int_Out1867127057|, ~n~0=~n~0_Out1867127057, ~x~0=~x~0_Out1867127057, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_Out1867127057|} AuxVars[] AssignedVars[ULTIMATE.start_main_~argv.offset, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~argv.base, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_~argc, #length, ULTIMATE.start_main_~#t2~0.base, ULTIMATE.start_main_#in~argv.base, ULTIMATE.start_main_#in~argv.offset, ULTIMATE.start_main_~#t2~0.offset, ULTIMATE.start_main_~i~0, #NULL.base, ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_~#t1~0.base, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_#in~argc, #memory_int, ~n~0, ~x~0, ULTIMATE.start_main_~#t1~0.offset] because there is no mapped edge [2020-07-28 21:49:42,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:49:42 BasicIcfg [2020-07-28 21:49:42,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:49:42,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:49:42,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:49:42,586 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:49:42,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:49:39" (3/4) ... [2020-07-28 21:49:42,589 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 21:49:42,590 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [219] [219] ULTIMATE.startENTRY-->L704: Formula: (let ((.cse1 (store |#valid_In1867127057| 0 0))) (let ((.cse0 (store .cse1 |ULTIMATE.start_main_~#t1~0.base_Out1867127057| 1))) (and (= 0 ~x~0_Out1867127057) (= 0 |#NULL.base_Out1867127057|) (= (select .cse0 |ULTIMATE.start_main_~#t2~0.base_Out1867127057|) 0) (= 1 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out1867127057|) (= |ULTIMATE.start_main_#in~argv.offset_Out1867127057| ULTIMATE.start_main_~argv.offset_Out1867127057) (< 0 ~n~0_Out1867127057) (= |#length_Out1867127057| (store (store |#length_In1867127057| |ULTIMATE.start_main_~#t1~0.base_Out1867127057| 4) |ULTIMATE.start_main_~#t2~0.base_Out1867127057| 4)) (= |ULTIMATE.start_#in~argc_In1867127057| |ULTIMATE.start_main_#in~argc_Out1867127057|) (= (store .cse0 |ULTIMATE.start_main_~#t2~0.base_Out1867127057| 1) |#valid_Out1867127057|) (< |#StackHeapBarrier_In1867127057| |ULTIMATE.start_main_~#t2~0.base_Out1867127057|) (= |ULTIMATE.start_main_~#t1~0.offset_Out1867127057| 0) (= (store |#memory_int_In1867127057| |ULTIMATE.start_main_~#t1~0.base_Out1867127057| (store (select |#memory_int_In1867127057| |ULTIMATE.start_main_~#t1~0.base_Out1867127057|) |ULTIMATE.start_main_~#t1~0.offset_Out1867127057| 0)) |#memory_int_Out1867127057|) (= |ULTIMATE.start_main_#in~argc_Out1867127057| ULTIMATE.start_main_~argc_Out1867127057) (= ULTIMATE.start_assume_abort_if_not_~cond_Out1867127057 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out1867127057|) (= |ULTIMATE.start_main_#in~argv.base_Out1867127057| ULTIMATE.start_main_~argv.base_Out1867127057) (= 0 (select .cse1 |ULTIMATE.start_main_~#t1~0.base_Out1867127057|)) (= 0 |#NULL.offset_Out1867127057|) (= |ULTIMATE.start_main_#in~argv.offset_Out1867127057| |ULTIMATE.start_#in~argv.offset_In1867127057|) (< 0 |#StackHeapBarrier_In1867127057|) (< |#StackHeapBarrier_In1867127057| |ULTIMATE.start_main_~#t1~0.base_Out1867127057|) (<= ~n~0_Out1867127057 2147483647) (= |ULTIMATE.start_#in~argv.base_In1867127057| |ULTIMATE.start_main_#in~argv.base_Out1867127057|) (= |ULTIMATE.start_main_~#t2~0.offset_Out1867127057| 0)))) InVars {#StackHeapBarrier=|#StackHeapBarrier_In1867127057|, #valid=|#valid_In1867127057|, #memory_int=|#memory_int_In1867127057|, #length=|#length_In1867127057|, ULTIMATE.start_#in~argc=|ULTIMATE.start_#in~argc_In1867127057|, ULTIMATE.start_#in~argv.offset=|ULTIMATE.start_#in~argv.offset_In1867127057|, ULTIMATE.start_#in~argv.base=|ULTIMATE.start_#in~argv.base_In1867127057|} OutVars{ULTIMATE.start_main_~argv.offset=ULTIMATE.start_main_~argv.offset_Out1867127057, ULTIMATE.start_main_#t~nondet5=|ULTIMATE.start_main_#t~nondet5_Out1867127057|, ULTIMATE.start_main_#t~nondet2=|ULTIMATE.start_main_#t~nondet2_Out1867127057|, ULTIMATE.start_main_#t~nondet3=|ULTIMATE.start_main_#t~nondet3_Out1867127057|, #NULL.offset=|#NULL.offset_Out1867127057|, ULTIMATE.start_#in~argv.offset=|ULTIMATE.start_#in~argv.offset_In1867127057|, ULTIMATE.start_main_#t~post4=|ULTIMATE.start_main_#t~post4_Out1867127057|, ULTIMATE.start_main_~argv.base=ULTIMATE.start_main_~argv.base_Out1867127057, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out1867127057, ULTIMATE.start_main_~argc=ULTIMATE.start_main_~argc_Out1867127057, #length=|#length_Out1867127057|, ULTIMATE.start_#in~argc=|ULTIMATE.start_#in~argc_In1867127057|, ULTIMATE.start_main_~#t2~0.base=|ULTIMATE.start_main_~#t2~0.base_Out1867127057|, ULTIMATE.start_#in~argv.base=|ULTIMATE.start_#in~argv.base_In1867127057|, ULTIMATE.start_main_#in~argv.base=|ULTIMATE.start_main_#in~argv.base_Out1867127057|, ULTIMATE.start_main_#in~argv.offset=|ULTIMATE.start_main_#in~argv.offset_Out1867127057|, ULTIMATE.start_main_~#t2~0.offset=|ULTIMATE.start_main_~#t2~0.offset_Out1867127057|, ULTIMATE.start_main_~i~0=ULTIMATE.start_main_~i~0_Out1867127057, #NULL.base=|#NULL.base_Out1867127057|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_Out1867127057|, ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_Out1867127057|, #StackHeapBarrier=|#StackHeapBarrier_In1867127057|, ULTIMATE.start_main_#res=|ULTIMATE.start_main_#res_Out1867127057|, #valid=|#valid_Out1867127057|, ULTIMATE.start_main_#in~argc=|ULTIMATE.start_main_#in~argc_Out1867127057|, #memory_int=|#memory_int_Out1867127057|, ~n~0=~n~0_Out1867127057, ~x~0=~x~0_Out1867127057, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_Out1867127057|} AuxVars[] AssignedVars[ULTIMATE.start_main_~argv.offset, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~argv.base, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_~argc, #length, ULTIMATE.start_main_~#t2~0.base, ULTIMATE.start_main_#in~argv.base, ULTIMATE.start_main_#in~argv.offset, ULTIMATE.start_main_~#t2~0.offset, ULTIMATE.start_main_~i~0, #NULL.base, ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_~#t1~0.base, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_#in~argc, #memory_int, ~n~0, ~x~0, ULTIMATE.start_main_~#t1~0.offset] because there is no mapped edge [2020-07-28 21:49:42,645 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:49:42,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:49:42,648 INFO L168 Benchmark]: Toolchain (without parser) took 4686.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.7 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -122.7 MB). Peak memory consumption was 97.0 MB. Max. memory is 11.5 GB. [2020-07-28 21:49:42,649 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:49:42,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -156.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2020-07-28 21:49:42,651 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-28 21:49:42,651 INFO L168 Benchmark]: Boogie Preprocessor took 30.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:49:42,652 INFO L168 Benchmark]: RCFGBuilder took 537.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:49:42,653 INFO L168 Benchmark]: TraceAbstraction took 3253.57 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 77.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -5.5 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:49:42,653 INFO L168 Benchmark]: Witness Printer took 59.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:49:42,657 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 723.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -156.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 537.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3253.57 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 77.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -5.5 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. * Witness Printer took 59.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.4s, 64 ProgramPointsBefore, 18 ProgramPointsAfterwards, 61 TransitionsBefore, 12 TransitionsAfterwards, 692 CoEnabledTransitionPairs, 7 FixpointIterations, 26 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 378 VarBasedMoverChecksPositive, 2 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 3 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 529 CheckedPairsTotal, 58 TotalNumberOfCompositions - CounterExampleResult [Line: 679]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L704] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [n=1, x=0] [L705] 0 i = 0 VAL [n=1, x=0] [L705] COND TRUE 0 i < n [L706] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [arg={0:0}, n=1, x=0] [L693] 2 int t; [L694] 2 t = x [L695] 2 x = t + 1 [L696] 2 return 0; [L678] COND TRUE 1 !(cond) [L679] 1 __VERIFIER_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 7 SDtfs, 7 SDslu, 2 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...