./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-races/race-1_2-join.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/ldv-races/race-1_2-join.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 766171a26e9abac3f50ab774768818300c722e3a .............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:49:48,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:49:48,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:49:48,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:49:48,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:49:48,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:49:48,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:49:48,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:49:48,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:49:48,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:49:48,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:49:48,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:49:48,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:49:48,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:49:48,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:49:48,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:49:48,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:49:48,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:49:48,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:49:48,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:49:48,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:49:48,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:49:48,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:49:48,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:49:48,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:49:48,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:49:48,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:49:48,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:49:48,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:49:48,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:49:48,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:49:48,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:49:48,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:49:48,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:49:48,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:49:48,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:49:48,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:49:48,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:49:48,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:49:48,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:49:48,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:49:48,658 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:49:48,673 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:49:48,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:49:48,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:49:48,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:49:48,677 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:49:48,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:49:48,679 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:49:48,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:49:48,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:49:48,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:49:48,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:49:48,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:49:48,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:49:48,682 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:49:48,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:49:48,682 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:49:48,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:49:48,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:49:48,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:49:48,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:49:48,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:49:48,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:49:48,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:49:48,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:49:48,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:49:48,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:49:48,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:49:48,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:49:48,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:49:48,691 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 -> 766171a26e9abac3f50ab774768818300c722e3a [2020-07-28 21:49:49,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:49:49,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:49:49,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:49:49,033 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:49:49,033 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:49:49,034 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-1_2-join.i [2020-07-28 21:49:49,113 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ba4084e4/a1a16fb08a3c42b882c7e2ee08f1650a/FLAG411de1c23 [2020-07-28 21:49:49,796 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:49:49,797 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_2-join.i [2020-07-28 21:49:49,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ba4084e4/a1a16fb08a3c42b882c7e2ee08f1650a/FLAG411de1c23 [2020-07-28 21:49:49,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ba4084e4/a1a16fb08a3c42b882c7e2ee08f1650a [2020-07-28 21:49:49,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:49:49,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:49:49,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:49:49,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:49:49,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:49:49,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:49:49" (1/1) ... [2020-07-28 21:49:49,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7af0ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:49, skipping insertion in model container [2020-07-28 21:49:49,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:49:49" (1/1) ... [2020-07-28 21:49:49,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:49:50,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:49:50,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:49:50,886 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:49:50,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:49:51,392 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:49:51,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:51 WrapperNode [2020-07-28 21:49:51,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:49:51,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:49:51,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:49:51,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:49:51,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:51" (1/1) ... [2020-07-28 21:49:51,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:51" (1/1) ... [2020-07-28 21:49:51,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:49:51,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:49:51,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:49:51,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:49:51,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:51" (1/1) ... [2020-07-28 21:49:51,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:51" (1/1) ... [2020-07-28 21:49:51,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:51" (1/1) ... [2020-07-28 21:49:51,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:51" (1/1) ... [2020-07-28 21:49:51,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:51" (1/1) ... [2020-07-28 21:49:51,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:51" (1/1) ... [2020-07-28 21:49:51,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:51" (1/1) ... [2020-07-28 21:49:51,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:49:51,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:49:51,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:49:51,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:49:51,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:51" (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 21:49:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:49:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 21:49:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-07-28 21:49:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-28 21:49:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:49:51,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:49:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:49:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-07-28 21:49:51,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-07-28 21:49:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:49:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-28 21:49:51,703 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 21:49:52,349 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:49:52,349 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-28 21:49:52,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:49:52 BoogieIcfgContainer [2020-07-28 21:49:52,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:49:52,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:49:52,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:49:52,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:49:52,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:49:49" (1/3) ... [2020-07-28 21:49:52,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6167f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:49:52, skipping insertion in model container [2020-07-28 21:49:52,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:49:51" (2/3) ... [2020-07-28 21:49:52,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6167f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:49:52, skipping insertion in model container [2020-07-28 21:49:52,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:49:52" (3/3) ... [2020-07-28 21:49:52,364 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2020-07-28 21:49:52,376 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:49:52,376 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:49:52,385 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-07-28 21:49:52,386 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:49:52,419 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:52,419 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:52,420 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:52,420 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:52,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:52,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:52,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:52,422 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:52,425 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:52,427 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:52,427 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:52,428 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:52,428 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:49:52,459 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-07-28 21:49:52,482 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:49:52,483 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:49:52,483 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:49:52,483 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:49:52,483 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:49:52,484 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:49:52,484 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:49:52,485 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:49:52,508 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 85 transitions, 178 flow [2020-07-28 21:49:52,510 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 85 transitions, 178 flow [2020-07-28 21:49:52,576 INFO L129 PetriNetUnfolder]: 5/96 cut-off events. [2020-07-28 21:49:52,576 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-07-28 21:49:52,582 INFO L80 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 5/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2020-07-28 21:49:52,584 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 85 transitions, 178 flow [2020-07-28 21:49:52,607 INFO L129 PetriNetUnfolder]: 5/96 cut-off events. [2020-07-28 21:49:52,608 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-07-28 21:49:52,609 INFO L80 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 5/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2020-07-28 21:49:52,610 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 308 [2020-07-28 21:49:52,611 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:49:55,493 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-07-28 21:49:55,865 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-07-28 21:49:56,056 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-28 21:49:56,068 INFO L206 etLargeBlockEncoding]: Checked pairs total: 256 [2020-07-28 21:49:56,069 INFO L214 etLargeBlockEncoding]: Total number of compositions: 98 [2020-07-28 21:49:56,072 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 38 flow [2020-07-28 21:49:56,080 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-07-28 21:49:56,083 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-07-28 21:49:56,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-07-28 21:49:56,089 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:49:56,090 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-07-28 21:49:56,091 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:49:56,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:49:56,097 INFO L82 PathProgramCache]: Analyzing trace with hash 337, now seen corresponding path program 1 times [2020-07-28 21:49:56,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:49:56,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107548671] [2020-07-28 21:49:56,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:49:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:49:56,407 INFO L280 TraceCheckUtils]: 0: Hoare triple {128#true} [306] ULTIMATE.startENTRY-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: false InVars {} OutVars{ULTIMATE.start_module_init_#res=|v_ULTIMATE.start_module_init_#res_25|, #pthreadsMutex=|v_#pthreadsMutex_50|, ~#mutex~0.base=|v_~#mutex~0.base_39|, ~#mutex~0.offset=|v_~#mutex~0.offset_39|, #NULL.offset=|v_#NULL.offset_5|, ULTIMATE.start_module_init_#t~nondet31=|v_ULTIMATE.start_module_init_#t~nondet31_30|, ~#t1~0.offset=|v_~#t1~0.offset_14|, ULTIMATE.start_module_init_#t~nondet32=|v_ULTIMATE.start_module_init_#t~nondet32_12|, ULTIMATE.start_ldv_assert_#in~expression=|v_ULTIMATE.start_ldv_assert_#in~expression_58|, ULTIMATE.start_ldv_assert_~expression=v_ULTIMATE.start_ldv_assert_~expression_77, #NULL.base=|v_#NULL.base_5|, ~#t1~0.base=|v_~#t1~0.base_14|, ULTIMATE.start_main_#t~ret35=|v_ULTIMATE.start_main_#t~ret35_37|, ~pdev~0=v_~pdev~0_75, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_45|, #length=|v_#length_24|} AuxVars[] AssignedVars[ULTIMATE.start_module_init_#res, #pthreadsMutex, ~#mutex~0.base, ~#mutex~0.offset, #NULL.offset, ULTIMATE.start_module_init_#t~nondet31, ~#t1~0.offset, ULTIMATE.start_module_init_#t~nondet32, ULTIMATE.start_ldv_assert_#in~expression, ULTIMATE.start_ldv_assert_~expression, #NULL.base, ~#t1~0.base, ULTIMATE.start_main_#t~ret35, ~pdev~0, ULTIMATE.start_main_#res, #valid, #length] {129#false} is VALID [2020-07-28 21:49:56,408 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 21:49:56,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107548671] [2020-07-28 21:49:56,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:49:56,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-07-28 21:49:56,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562149286] [2020-07-28 21:49:56,417 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-07-28 21:49:56,419 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:49:56,423 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 21:49:56,427 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:49:56,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 21:49:56,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:49:56,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 21:49:56,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 21:49:56,440 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-07-28 21:49:56,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:49:56,495 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-07-28 21:49:56,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 21:49:56,496 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-07-28 21:49:56,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:49:56,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 21:49:56,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 14 transitions. [2020-07-28 21:49:56,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 21:49:56,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 14 transitions. [2020-07-28 21:49:56,514 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 14 transitions. [2020-07-28 21:49:56,550 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:49:56,567 INFO L225 Difference]: With dead ends: 18 [2020-07-28 21:49:56,568 INFO L226 Difference]: Without dead ends: 8 [2020-07-28 21:49:56,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 21:49:56,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-07-28 21:49:56,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:56,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:56,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:56,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:56,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:56,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:56,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:56,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:56,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-07-28 21:49:56,600 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:49:56,601 INFO L82 GeneralOperation]: Start isEquivalent. First operand 8 states. Second operand 8 states. [2020-07-28 21:49:56,601 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 8 states. [2020-07-28 21:49:56,602 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 8 states. [2020-07-28 21:49:56,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:49:56,604 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2020-07-28 21:49:56,604 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-07-28 21:49:56,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:49:56,604 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:49:56,605 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 8 states. [2020-07-28 21:49:56,605 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 8 states. [2020-07-28 21:49:56,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:49:56,606 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2020-07-28 21:49:56,607 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-07-28 21:49:56,607 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:49:56,607 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:49:56,607 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:49:56,608 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:49:56,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 21:49:56,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2020-07-28 21:49:56,610 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 1 [2020-07-28 21:49:56,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:49:56,611 INFO L479 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2020-07-28 21:49:56,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 21:49:56,611 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-07-28 21:49:56,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-28 21:49:56,612 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:49:56,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-28 21:49:56,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:49:56,613 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:49:56,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:49:56,613 INFO L82 PathProgramCache]: Analyzing trace with hash 10458850, now seen corresponding path program 1 times [2020-07-28 21:49:56,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:49:56,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643277898] [2020-07-28 21:49:56,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:49:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:49:56,803 INFO L280 TraceCheckUtils]: 0: Hoare triple {182#true} [313] ULTIMATE.startENTRY-->L1697-1: Formula: (let ((.cse2 (store |v_#valid_53| 0 0))) (let ((.cse3 (store .cse2 |v_~#t1~0.base_17| 1)) (.cse0 (select |v_#memory_int_45| |v_~#t1~0.base_17|)) (.cse1 (select |v_#memory_int_45| |v_~#mutex~0.base_42|))) (and (= |v_#memory_$Pointer$.base_22| (store |v_#memory_$Pointer$.base_23| |v_~#t1~0.base_17| (store (select |v_#memory_$Pointer$.base_23| |v_~#t1~0.base_17|) |v_~#t1~0.offset_17| (select (select |v_#memory_$Pointer$.base_22| |v_~#t1~0.base_17|) |v_~#t1~0.offset_17|)))) (< 0 |v_#StackHeapBarrier_18|) (= 0 (select .cse0 |v_~#t1~0.offset_17|)) (= 0 |v_#NULL.offset_8|) (= 0 (select .cse1 (+ |v_~#mutex~0.offset_42| 8))) (= 0 |v_~#mutex~0.offset_42|) (= 0 (select .cse2 |v_~#t1~0.base_17|)) (< |v_#StackHeapBarrier_18| |v_~#mutex~0.base_42|) (= 0 (select .cse3 |v_~#mutex~0.base_42|)) (= v_ULTIMATE.start_ldv_assert_~expression_83 |v_ULTIMATE.start_ldv_assert_#in~expression_64|) (= 1 |v_ULTIMATE.start_ldv_assert_#in~expression_64|) (= |v_#valid_52| (store .cse3 |v_~#mutex~0.base_42| 1)) (= 0 |v_#NULL.base_8|) (= 0 (select .cse1 (+ |v_~#mutex~0.offset_42| 16))) (= |v_#length_30| (store (store |v_#length_31| |v_~#t1~0.base_17| 4) |v_~#mutex~0.base_42| 24)) (= 1 v_~pdev~0_83) (< |v_#StackHeapBarrier_18| |v_~#t1~0.base_17|) (= (store |v_#memory_$Pointer$.offset_23| |v_~#t1~0.base_17| (store (select |v_#memory_$Pointer$.offset_23| |v_~#t1~0.base_17|) |v_~#t1~0.offset_17| (select (select |v_#memory_$Pointer$.offset_22| |v_~#t1~0.base_17|) |v_~#t1~0.offset_17|))) |v_#memory_$Pointer$.offset_22|) (= 0 (select .cse1 (+ |v_~#mutex~0.offset_42| 4))) (= 0 |v_~#t1~0.offset_17|) (= 0 (select .cse1 |v_~#mutex~0.offset_42|)) (= |v_#pthreadsMutex_55| (store |v_#pthreadsMutex_56| |v_~#mutex~0.base_42| (store (select |v_#pthreadsMutex_56| |v_~#mutex~0.base_42|) |v_~#mutex~0.offset_42| 0))) (= (store |v_#memory_int_45| |v_~#t1~0.base_17| (store .cse0 |v_~#t1~0.offset_17| 0)) |v_#memory_int_44|) (= 0 (select .cse1 (+ |v_~#mutex~0.offset_42| 12)))))) InVars {#pthreadsMutex=|v_#pthreadsMutex_56|, #StackHeapBarrier=|v_#StackHeapBarrier_18|, #memory_$Pointer$.base=|v_#memory_$Pointer$.base_23|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_45|, #length=|v_#length_31|, #memory_$Pointer$.offset=|v_#memory_$Pointer$.offset_23|} OutVars{ULTIMATE.start_module_init_#res=|v_ULTIMATE.start_module_init_#res_30|, #pthreadsMutex=|v_#pthreadsMutex_55|, #memory_$Pointer$.base=|v_#memory_$Pointer$.base_22|, ~#mutex~0.base=|v_~#mutex~0.base_42|, ~#mutex~0.offset=|v_~#mutex~0.offset_42|, #NULL.offset=|v_#NULL.offset_8|, ~#t1~0.offset=|v_~#t1~0.offset_17|, ULTIMATE.start_module_init_#t~nondet31=|v_ULTIMATE.start_module_init_#t~nondet31_34|, ULTIMATE.start_module_init_#t~nondet32=|v_ULTIMATE.start_module_init_#t~nondet32_16|, ULTIMATE.start_ldv_assert_#in~expression=|v_ULTIMATE.start_ldv_assert_#in~expression_64|, ULTIMATE.start_ldv_assert_~expression=v_ULTIMATE.start_ldv_assert_~expression_83, #NULL.base=|v_#NULL.base_8|, #StackHeapBarrier=|v_#StackHeapBarrier_18|, ~#t1~0.base=|v_~#t1~0.base_17|, ULTIMATE.start_main_#t~ret35=|v_ULTIMATE.start_main_#t~ret35_42|, ~pdev~0=v_~pdev~0_83, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_21|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_44|, #length=|v_#length_30|, #memory_$Pointer$.offset=|v_#memory_$Pointer$.offset_22|} AuxVars[] AssignedVars[ULTIMATE.start_module_init_#res, #pthreadsMutex, #memory_$Pointer$.base, ~#mutex~0.base, ~#mutex~0.offset, #NULL.offset, ~#t1~0.offset, ULTIMATE.start_module_init_#t~nondet31, ULTIMATE.start_module_init_#t~nondet32, ULTIMATE.start_ldv_assert_#in~expression, ULTIMATE.start_ldv_assert_~expression, #NULL.base, ~#t1~0.base, ULTIMATE.start_main_#t~ret35, ~pdev~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, #memory_$Pointer$.offset] {182#true} is VALID [2020-07-28 21:49:56,803 INFO L280 TraceCheckUtils]: 1: Hoare triple {182#true} [211] L1697-1-->thread1ENTRY: Formula: (and (= 0 v_thread1Thread1of1ForFork0_thidvar0_2) (= 0 |v_thread1Thread1of1ForFork0_#in~arg.offset_3|) (= 0 |v_thread1Thread1of1ForFork0_#in~arg.base_3|)) InVars {} OutVars{thread1Thread1of1ForFork0_#in~arg.base=|v_thread1Thread1of1ForFork0_#in~arg.base_3|, thread1Thread1of1ForFork0_#res.base=|v_thread1Thread1of1ForFork0_#res.base_3|, thread1Thread1of1ForFork0_~arg.offset=v_thread1Thread1of1ForFork0_~arg.offset_3, thread1Thread1of1ForFork0_~arg.base=v_thread1Thread1of1ForFork0_~arg.base_3, thread1Thread1of1ForFork0_#t~nondet30=|v_thread1Thread1of1ForFork0_#t~nondet30_4|, thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_#res.offset=|v_thread1Thread1of1ForFork0_#res.offset_3|, thread1Thread1of1ForFork0_#in~arg.offset=|v_thread1Thread1of1ForFork0_#in~arg.offset_3|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#in~arg.base, thread1Thread1of1ForFork0_#res.base, thread1Thread1of1ForFork0_~arg.offset, thread1Thread1of1ForFork0_~arg.base, thread1Thread1of1ForFork0_#t~nondet30, thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_#res.offset, thread1Thread1of1ForFork0_#in~arg.offset] {182#true} is VALID [2020-07-28 21:49:56,804 INFO L280 TraceCheckUtils]: 2: Hoare triple {182#true} [248] L1697-2-->L1699: Formula: (= 2 v_~pdev~0_23) InVars {} OutVars{~pdev~0=v_~pdev~0_23, ULTIMATE.start_module_init_#t~nondet32=|v_ULTIMATE.start_module_init_#t~nondet32_4|} AuxVars[] AssignedVars[~pdev~0, ULTIMATE.start_module_init_#t~nondet32] {184#(= 2 ~pdev~0)} is VALID [2020-07-28 21:49:56,805 INFO L280 TraceCheckUtils]: 3: Hoare triple {184#(= 2 ~pdev~0)} [287] L1699-->ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_ldv_assert_~expression_52 0) (= v_ULTIMATE.start_ldv_assert_~expression_52 |v_ULTIMATE.start_ldv_assert_#in~expression_34|) (not (= 2 v_~pdev~0_42))) InVars {~pdev~0=v_~pdev~0_42} OutVars{~pdev~0=v_~pdev~0_42, ULTIMATE.start_ldv_assert_#in~expression=|v_ULTIMATE.start_ldv_assert_#in~expression_34|, ULTIMATE.start_ldv_assert_~expression=v_ULTIMATE.start_ldv_assert_~expression_52} AuxVars[] AssignedVars[ULTIMATE.start_ldv_assert_#in~expression, ULTIMATE.start_ldv_assert_~expression] {183#false} is VALID [2020-07-28 21:49:56,805 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 21:49:56,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643277898] [2020-07-28 21:49:56,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:49:56,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:49:56,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139356730] [2020-07-28 21:49:56,808 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-28 21:49:56,808 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:49:56,808 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:49:56,814 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:49:56,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:49:56,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:49:56,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:49:56,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:49:56,815 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2020-07-28 21:49:56,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:49:56,837 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-07-28 21:49:56,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:49:56,838 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-28 21:49:56,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:49:56,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:49:56,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-28 21:49:56,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:49:56,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-28 21:49:56,840 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 7 transitions. [2020-07-28 21:49:56,849 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:49:56,849 INFO L225 Difference]: With dead ends: 8 [2020-07-28 21:49:56,849 INFO L226 Difference]: Without dead ends: 6 [2020-07-28 21:49:56,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 21:49:56,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2020-07-28 21:49:56,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:56,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:56,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:56,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:56,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:56,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:49:56,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-07-28 21:49:56,853 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:49:56,853 INFO L82 GeneralOperation]: Start isEquivalent. First operand 6 states. Second operand 6 states. [2020-07-28 21:49:56,853 INFO L74 IsIncluded]: Start isIncluded. First operand 6 states. Second operand 6 states. [2020-07-28 21:49:56,854 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 6 states. [2020-07-28 21:49:56,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:49:56,855 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-07-28 21:49:56,855 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-07-28 21:49:56,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:49:56,855 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:49:56,855 INFO L74 IsIncluded]: Start isIncluded. First operand 6 states. Second operand 6 states. [2020-07-28 21:49:56,856 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 6 states. [2020-07-28 21:49:56,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:49:56,857 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-07-28 21:49:56,857 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-07-28 21:49:56,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:49:56,857 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:49:56,857 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:49:56,857 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:49:56,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:49:56,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2020-07-28 21:49:56,858 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 4 [2020-07-28 21:49:56,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:49:56,859 INFO L479 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2020-07-28 21:49:56,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:49:56,859 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-07-28 21:49:56,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-28 21:49:56,859 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:49:56,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-28 21:49:56,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:49:56,860 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:49:56,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:49:56,860 INFO L82 PathProgramCache]: Analyzing trace with hash 324224792, now seen corresponding path program 1 times [2020-07-28 21:49:56,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:49:56,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909495839] [2020-07-28 21:49:56,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:49:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 21:49:56,903 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 21:49:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 21:49:56,925 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 21:49:56,950 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 21:49:56,951 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 21:49:56,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:49:56,951 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-07-28 21:49:56,956 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [276] [276] L1682-->L1696: Formula: (and (not (= 0 ULTIMATE.start_ldv_assert_~expression_Out1664795309)) (<= |ULTIMATE.start_module_init_#t~nondet31_In1664795309| 2147483647) (<= 0 (+ |ULTIMATE.start_module_init_#t~nondet31_In1664795309| 2147483648)) (= ULTIMATE.start_ldv_assert_~expression_Out1664795309 |ULTIMATE.start_ldv_assert_#in~expression_In1664795309|)) InVars {ULTIMATE.start_module_init_#t~nondet31=|ULTIMATE.start_module_init_#t~nondet31_In1664795309|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In1664795309|} OutVars{ULTIMATE.start_module_init_#t~nondet31=|ULTIMATE.start_module_init_#t~nondet31_In1664795309|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In1664795309|, ULTIMATE.start_ldv_assert_~expression=ULTIMATE.start_ldv_assert_~expression_Out1664795309} AuxVars[] AssignedVars[ULTIMATE.start_ldv_assert_~expression] because there is no mapped edge [2020-07-28 21:49:56,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:49:56 BasicIcfg [2020-07-28 21:49:56,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:49:56,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:49:56,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:49:56,981 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:49:56,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:49:52" (3/4) ... [2020-07-28 21:49:56,984 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 21:49:56,985 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [276] [276] L1682-->L1696: Formula: (and (not (= 0 ULTIMATE.start_ldv_assert_~expression_Out1664795309)) (<= |ULTIMATE.start_module_init_#t~nondet31_In1664795309| 2147483647) (<= 0 (+ |ULTIMATE.start_module_init_#t~nondet31_In1664795309| 2147483648)) (= ULTIMATE.start_ldv_assert_~expression_Out1664795309 |ULTIMATE.start_ldv_assert_#in~expression_In1664795309|)) InVars {ULTIMATE.start_module_init_#t~nondet31=|ULTIMATE.start_module_init_#t~nondet31_In1664795309|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In1664795309|} OutVars{ULTIMATE.start_module_init_#t~nondet31=|ULTIMATE.start_module_init_#t~nondet31_In1664795309|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In1664795309|, ULTIMATE.start_ldv_assert_~expression=ULTIMATE.start_ldv_assert_~expression_Out1664795309} AuxVars[] AssignedVars[ULTIMATE.start_ldv_assert_~expression] because there is no mapped edge [2020-07-28 21:49:57,035 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:49:57,035 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:49:57,041 INFO L168 Benchmark]: Toolchain (without parser) took 7066.40 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 330.8 MB). Free memory was 954.9 MB in the beginning and 1.3 GB in the end (delta: -319.1 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:49:57,041 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:49:57,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1419.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 954.9 MB in the beginning and 998.3 MB in the end (delta: -43.4 MB). Peak memory consumption was 105.3 MB. Max. memory is 11.5 GB. [2020-07-28 21:49:57,045 INFO L168 Benchmark]: Boogie Procedure Inliner took 136.46 ms. Allocated memory is still 1.2 GB. Free memory was 998.3 MB in the beginning and 991.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:49:57,046 INFO L168 Benchmark]: Boogie Preprocessor took 89.16 ms. Allocated memory is still 1.2 GB. Free memory is still 991.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:49:57,046 INFO L168 Benchmark]: RCFGBuilder took 731.54 ms. Allocated memory is still 1.2 GB. Free memory was 991.6 MB in the beginning and 939.5 MB in the end (delta: 52.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 11.5 GB. [2020-07-28 21:49:57,047 INFO L168 Benchmark]: TraceAbstraction took 4623.89 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 192.9 MB). Free memory was 932.9 MB in the beginning and 1.3 GB in the end (delta: -350.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:49:57,048 INFO L168 Benchmark]: Witness Printer took 55.13 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:49:57,051 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 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1419.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 954.9 MB in the beginning and 998.3 MB in the end (delta: -43.4 MB). Peak memory consumption was 105.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 136.46 ms. Allocated memory is still 1.2 GB. Free memory was 998.3 MB in the beginning and 991.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 89.16 ms. Allocated memory is still 1.2 GB. Free memory is still 991.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 731.54 ms. Allocated memory is still 1.2 GB. Free memory was 991.6 MB in the beginning and 939.5 MB in the end (delta: 52.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4623.89 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 192.9 MB). Free memory was 932.9 MB in the beginning and 1.3 GB in the end (delta: -350.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 55.13 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 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: 3.5s, 83 ProgramPointsBefore, 17 ProgramPointsAfterwards, 85 TransitionsBefore, 15 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 7 FixpointIterations, 58 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 164 VarBasedMoverChecksPositive, 8 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 8 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 256 CheckedPairsTotal, 98 TotalNumberOfCompositions - CounterExampleResult [Line: 1682]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1683] 0 pthread_t t1; [L1684] 0 pthread_mutex_t mutex; [L1685] 0 int pdev; [L1694] 0 pdev = 1 [L1696] COND TRUE 0 __VERIFIER_nondet_int() [L1697] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={2:0}, pdev=1, t1={3:0}] [L1698] 0 pdev = 2 VAL [arg={0:0}, mutex={2:0}, pdev=2, t1={3:0}] [L1688] 1 pdev = 6 [L1690] 1 return 0; [L1682] COND TRUE 0 !expression [L1682] 0 __VERIFIER_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={2:0}, pdev=6, t1={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...