./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f51b9b30e22bffeec62b3fe2d58bec4819b7724c ........................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-9a8b2e8 [2020-10-20 03:09:17,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:09:17,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:09:17,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:09:17,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:09:17,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:09:17,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:09:17,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:09:17,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:09:17,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:09:17,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:09:17,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:09:17,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:09:17,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:09:17,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:09:17,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:09:17,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:09:17,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:09:17,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:09:17,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:09:17,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:09:17,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:09:17,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:09:17,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:09:17,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:09:17,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:09:17,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:09:17,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:09:17,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:09:17,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:09:17,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:09:17,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:09:17,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:09:17,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:09:17,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:09:17,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:09:17,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:09:17,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:09:17,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:09:17,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:09:17,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:09:17,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:09:17,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:09:17,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:09:17,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:09:17,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:09:17,633 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:09:17,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:09:17,634 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:09:17,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:09:17,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:09:17,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:09:17,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:09:17,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:09:17,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:09:17,635 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:09:17,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:09:17,635 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:09:17,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:09:17,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:09:17,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:09:17,636 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:09:17,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:09:17,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:09:17,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:09:17,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:09:17,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:09:17,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:09:17,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:09:17,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:09:17,638 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:09:17,638 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(reach_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 -> f51b9b30e22bffeec62b3fe2d58bec4819b7724c [2020-10-20 03:09:17,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:09:17,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:09:17,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:09:17,861 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:09:17,861 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:09:17,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i [2020-10-20 03:09:17,935 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04febf1dc/20ff52a29dad4d2da328f2a81d096a71/FLAG6a7c8d35e [2020-10-20 03:09:18,572 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:09:18,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i [2020-10-20 03:09:18,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04febf1dc/20ff52a29dad4d2da328f2a81d096a71/FLAG6a7c8d35e [2020-10-20 03:09:18,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04febf1dc/20ff52a29dad4d2da328f2a81d096a71 [2020-10-20 03:09:18,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:09:18,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:09:18,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:09:18,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:09:18,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:09:18,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:09:18" (1/1) ... [2020-10-20 03:09:18,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51ca2b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:18, skipping insertion in model container [2020-10-20 03:09:18,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:09:18" (1/1) ... [2020-10-20 03:09:18,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:09:18,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:09:19,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:09:19,320 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:09:19,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:09:19,491 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:09:19,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:19 WrapperNode [2020-10-20 03:09:19,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:09:19,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:09:19,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:09:19,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:09:19,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:19" (1/1) ... [2020-10-20 03:09:19,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:19" (1/1) ... [2020-10-20 03:09:19,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:09:19,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:09:19,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:09:19,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:09:19,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:19" (1/1) ... [2020-10-20 03:09:19,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:19" (1/1) ... [2020-10-20 03:09:19,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:19" (1/1) ... [2020-10-20 03:09:19,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:19" (1/1) ... [2020-10-20 03:09:19,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:19" (1/1) ... [2020-10-20 03:09:19,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:19" (1/1) ... [2020-10-20 03:09:19,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:19" (1/1) ... [2020-10-20 03:09:19,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:09:19,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:09:19,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:09:19,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:09:19,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:19" (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 [2020-10-20 03:09:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-20 03:09:19,644 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-20 03:09:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-20 03:09:19,644 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-20 03:09:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:09:19,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:09:19,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:09:19,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:09:19,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:09:19,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:09:19,647 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 03:09:19,999 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:09:20,000 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-10-20 03:09:20,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:09:20 BoogieIcfgContainer [2020-10-20 03:09:20,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:09:20,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:09:20,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:09:20,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:09:20,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:09:18" (1/3) ... [2020-10-20 03:09:20,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9e309b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:09:20, skipping insertion in model container [2020-10-20 03:09:20,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:09:19" (2/3) ... [2020-10-20 03:09:20,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9e309b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:09:20, skipping insertion in model container [2020-10-20 03:09:20,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:09:20" (3/3) ... [2020-10-20 03:09:20,010 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2020-10-20 03:09:20,022 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:09:20,022 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:09:20,030 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:09:20,031 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:09:20,056 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,056 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,056 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,056 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,058 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,058 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,058 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,059 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,059 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,059 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,059 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,060 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,060 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,060 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,060 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,060 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,061 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,061 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,061 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,061 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,062 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,062 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,067 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,067 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,068 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,068 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,068 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,069 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,074 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,074 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,074 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,074 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,075 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:09:20,076 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:09:20,103 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 03:09:20,122 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:09:20,123 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:09:20,123 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:09:20,123 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:09:20,123 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:09:20,123 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:09:20,123 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:09:20,123 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:09:20,136 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:09:20,139 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 70 transitions, 150 flow [2020-10-20 03:09:20,141 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 70 transitions, 150 flow [2020-10-20 03:09:20,143 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 70 transitions, 150 flow [2020-10-20 03:09:20,190 INFO L129 PetriNetUnfolder]: 5/80 cut-off events. [2020-10-20 03:09:20,190 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:09:20,196 INFO L80 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 80 events. 5/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 118 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 59. Up to 4 conditions per place. [2020-10-20 03:09:20,199 INFO L117 LiptonReduction]: Number of co-enabled transitions 942 [2020-10-20 03:09:21,945 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-20 03:09:22,387 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2020-10-20 03:09:22,538 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-20 03:09:22,541 INFO L132 LiptonReduction]: Checked pairs total: 895 [2020-10-20 03:09:22,541 INFO L134 LiptonReduction]: Total number of compositions: 73 [2020-10-20 03:09:22,549 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-10-20 03:09:22,560 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-10-20 03:09:22,562 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-20 03:09:22,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-20 03:09:22,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:09:22,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-20 03:09:22,570 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-20 03:09:22,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:09:22,575 INFO L82 PathProgramCache]: Analyzing trace with hash 283649, now seen corresponding path program 1 times [2020-10-20 03:09:22,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:09:22,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031500379] [2020-10-20 03:09:22,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:09:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:09:22,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:09:22,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031500379] [2020-10-20 03:09:22,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:09:22,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:09:22,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358486710] [2020-10-20 03:09:22,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:09:22,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:09:22,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:09:22,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:09:22,846 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-10-20 03:09:22,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:09:22,896 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-10-20 03:09:22,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:09:22,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-20 03:09:22,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:09:22,912 INFO L225 Difference]: With dead ends: 35 [2020-10-20 03:09:22,912 INFO L226 Difference]: Without dead ends: 31 [2020-10-20 03:09:22,914 INFO L677 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 [2020-10-20 03:09:22,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-20 03:09:22,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-20 03:09:22,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-20 03:09:22,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-10-20 03:09:22,965 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-10-20 03:09:22,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:09:22,969 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-10-20 03:09:22,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:09:22,970 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-10-20 03:09:22,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 03:09:22,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:09:22,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:09:22,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:09:22,972 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-20 03:09:22,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:09:22,973 INFO L82 PathProgramCache]: Analyzing trace with hash -68679350, now seen corresponding path program 1 times [2020-10-20 03:09:22,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:09:22,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663387945] [2020-10-20 03:09:22,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:09:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 03:09:23,061 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 03:09:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 03:09:23,097 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 03:09:23,122 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 03:09:23,123 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 03:09:23,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:09:23,124 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-20 03:09:23,129 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [246] [246] L714-->L715: Formula: (and (= (store |#memory_int_In-283921020| |ULTIMATE.start_main_~#t1~0.base_In-283921020| (store (select |#memory_int_In-283921020| |ULTIMATE.start_main_~#t1~0.base_In-283921020|) |ULTIMATE.start_main_~#t1~0.offset_In-283921020| 0)) |#memory_int_Out-283921020|) (< 0 ~n~0_In-283921020) (= |ULTIMATE.start_assume_abort_if_not_#in~cond_Out-283921020| 1) (= ULTIMATE.start_assume_abort_if_not_~cond_Out-283921020 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out-283921020|)) InVars {ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_In-283921020|, #memory_int=|#memory_int_In-283921020|, ~n~0=~n~0_In-283921020, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_In-283921020|} OutVars{ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_In-283921020|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_Out-283921020|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out-283921020, #memory_int=|#memory_int_Out-283921020|, ~n~0=~n~0_In-283921020, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_In-283921020|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, #memory_int] because there is no mapped edge [2020-10-20 03:09:23,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:09:23 BasicIcfg [2020-10-20 03:09:23,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:09:23,160 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:09:23,160 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:09:23,160 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:09:23,161 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:09:20" (3/4) ... [2020-10-20 03:09:23,163 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 03:09:23,164 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [246] [246] L714-->L715: Formula: (and (= (store |#memory_int_In-283921020| |ULTIMATE.start_main_~#t1~0.base_In-283921020| (store (select |#memory_int_In-283921020| |ULTIMATE.start_main_~#t1~0.base_In-283921020|) |ULTIMATE.start_main_~#t1~0.offset_In-283921020| 0)) |#memory_int_Out-283921020|) (< 0 ~n~0_In-283921020) (= |ULTIMATE.start_assume_abort_if_not_#in~cond_Out-283921020| 1) (= ULTIMATE.start_assume_abort_if_not_~cond_Out-283921020 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out-283921020|)) InVars {ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_In-283921020|, #memory_int=|#memory_int_In-283921020|, ~n~0=~n~0_In-283921020, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_In-283921020|} OutVars{ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_In-283921020|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_Out-283921020|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out-283921020, #memory_int=|#memory_int_Out-283921020|, ~n~0=~n~0_In-283921020, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_In-283921020|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, #memory_int] because there is no mapped edge [2020-10-20 03:09:23,241 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:09:23,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:09:23,242 INFO L168 Benchmark]: Toolchain (without parser) took 4439.42 ms. Allocated memory was 44.0 MB in the beginning and 67.1 MB in the end (delta: 23.1 MB). Free memory was 23.4 MB in the beginning and 9.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 36.8 MB. Max. memory is 14.3 GB. [2020-10-20 03:09:23,243 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 32.0 MB. Free memory is still 10.7 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 03:09:23,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.12 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 22.5 MB in the beginning and 24.2 MB in the end (delta: -1.7 MB). Peak memory consumption was 12.5 MB. Max. memory is 14.3 GB. [2020-10-20 03:09:23,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.07 ms. Allocated memory is still 46.1 MB. Free memory was 23.9 MB in the beginning and 21.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:09:23,255 INFO L168 Benchmark]: Boogie Preprocessor took 30.60 ms. Allocated memory is still 46.1 MB. Free memory was 21.9 MB in the beginning and 20.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:09:23,258 INFO L168 Benchmark]: RCFGBuilder took 429.21 ms. Allocated memory is still 46.1 MB. Free memory was 20.2 MB in the beginning and 17.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. [2020-10-20 03:09:23,259 INFO L168 Benchmark]: TraceAbstraction took 3156.60 ms. Allocated memory was 46.1 MB in the beginning and 67.1 MB in the end (delta: 21.0 MB). Free memory was 17.0 MB in the beginning and 12.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 14.3 GB. [2020-10-20 03:09:23,259 INFO L168 Benchmark]: Witness Printer took 81.21 ms. Allocated memory is still 67.1 MB. Free memory was 12.8 MB in the beginning and 9.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 03:09:23,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 32.0 MB. Free memory is still 10.7 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 682.12 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 22.5 MB in the beginning and 24.2 MB in the end (delta: -1.7 MB). Peak memory consumption was 12.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 49.07 ms. Allocated memory is still 46.1 MB. Free memory was 23.9 MB in the beginning and 21.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 30.60 ms. Allocated memory is still 46.1 MB. Free memory was 21.9 MB in the beginning and 20.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 429.21 ms. Allocated memory is still 46.1 MB. Free memory was 20.2 MB in the beginning and 17.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3156.60 ms. Allocated memory was 46.1 MB in the beginning and 67.1 MB in the end (delta: 21.0 MB). Free memory was 17.0 MB in the beginning and 12.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 14.3 GB. * Witness Printer took 81.21 ms. Allocated memory is still 67.1 MB. Free memory was 12.8 MB in the beginning and 9.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 632 VarBasedMoverChecksPositive, 7 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 5 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 3 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.4s, 72 PlacesBefore, 18 PlacesAfterwards, 70 TransitionsBefore, 12 TransitionsAfterwards, 942 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 73 TotalNumberOfCompositions, 895 MoverChecksTotal - CounterExampleResult [Line: 683]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L697] 0 volatile int x; [L698] 0 volatile int n; [L710] 0 pthread_t t1, t2; [L711] 0 int i; [L712] 0 x = 0 [L713] 0 n = __VERIFIER_nondet_int() [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [n=1, x=0] [L716] 0 i = 0 VAL [n=1, x=0] [L716] COND TRUE 0 i < n [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [arg={0:0}, n=1, x=0] [L704] 2 int t; [L705] 2 t = x [L706] 2 x = t + 1 [L707] 2 return 0; [L689] COND TRUE 1 !(cond) [L683] COND FALSE 1 !(0) [L683] 1 __assert_fail ("0", "assert.h", 6, __extension__ __PRETTY_FUNCTION__) 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, 66 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, 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...