./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stateful01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash daf8296ccffa2774bcd8f28d2aef5bf1cbb0f4f5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-6b5699a [2019-11-26 02:19:16,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:19:16,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:19:16,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:19:16,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:19:16,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:19:16,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:19:16,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:19:16,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:19:16,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:19:16,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:19:16,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:19:16,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:19:16,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:19:16,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:19:16,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:19:16,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:19:16,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:19:16,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:19:16,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:19:16,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:19:16,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:19:16,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:19:16,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:19:16,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:19:16,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:19:16,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:19:16,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:19:16,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:19:16,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:19:16,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:19:16,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:19:16,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:19:16,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:19:16,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:19:16,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:19:16,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:19:16,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:19:16,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:19:16,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:19:16,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:19:16,644 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:19:16,667 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:19:16,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:19:16,668 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:19:16,668 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:19:16,669 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:19:16,669 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:19:16,669 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:19:16,669 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:19:16,669 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:19:16,670 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:19:16,670 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:19:16,670 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:19:16,670 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:19:16,671 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:19:16,671 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:19:16,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:19:16,672 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:19:16,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:19:16,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:19:16,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:19:16,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:19:16,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:19:16,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:19:16,673 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:19:16,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:19:16,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:19:16,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:19:16,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:19:16,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:19:16,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:19:16,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:19:16,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:19:16,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:19:16,675 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:19:16,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:19:16,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:19:16,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:19:16,676 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/bin/utaipan 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 -> Taipan 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 -> daf8296ccffa2774bcd8f28d2aef5bf1cbb0f4f5 [2019-11-26 02:19:16,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:19:16,813 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:19:16,815 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:19:16,817 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:19:16,817 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:19:16,818 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/bin/utaipan/../../sv-benchmarks/c/pthread/stateful01-1.i [2019-11-26 02:19:16,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/bin/utaipan/data/6a8c19077/2c4f8f34d2f944b887e6693cf93311a8/FLAG231421771 [2019-11-26 02:19:17,334 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:19:17,334 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/sv-benchmarks/c/pthread/stateful01-1.i [2019-11-26 02:19:17,350 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/bin/utaipan/data/6a8c19077/2c4f8f34d2f944b887e6693cf93311a8/FLAG231421771 [2019-11-26 02:19:17,362 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/bin/utaipan/data/6a8c19077/2c4f8f34d2f944b887e6693cf93311a8 [2019-11-26 02:19:17,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:19:17,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:19:17,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:19:17,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:19:17,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:19:17,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:19:17" (1/1) ... [2019-11-26 02:19:17,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad7bb19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:17, skipping insertion in model container [2019-11-26 02:19:17,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:19:17" (1/1) ... [2019-11-26 02:19:17,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:19:17,428 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:19:17,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:19:17,830 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:19:17,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:19:17,950 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:19:17,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:17 WrapperNode [2019-11-26 02:19:17,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:19:17,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:19:17,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:19:17,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:19:17,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:17" (1/1) ... [2019-11-26 02:19:17,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:17" (1/1) ... [2019-11-26 02:19:17,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:19:17,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:19:17,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:19:17,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:19:17,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:17" (1/1) ... [2019-11-26 02:19:17,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:17" (1/1) ... [2019-11-26 02:19:17,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:17" (1/1) ... [2019-11-26 02:19:17,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:17" (1/1) ... [2019-11-26 02:19:18,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:17" (1/1) ... [2019-11-26 02:19:18,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:17" (1/1) ... [2019-11-26 02:19:18,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:17" (1/1) ... [2019-11-26 02:19:18,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:19:18,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:19:18,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:19:18,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:19:18,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/bin/utaipan/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 [2019-11-26 02:19:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:19:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-11-26 02:19:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-11-26 02:19:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2019-11-26 02:19:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2019-11-26 02:19:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:19:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-26 02:19:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:19:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:19:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:19:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:19:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:19:18,073 WARN L202 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-26 02:19:18,480 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:19:18,481 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:19:18,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:19:18 BoogieIcfgContainer [2019-11-26 02:19:18,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:19:18,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:19:18,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:19:18,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:19:18,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:19:17" (1/3) ... [2019-11-26 02:19:18,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9cb30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:19:18, skipping insertion in model container [2019-11-26 02:19:18,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:17" (2/3) ... [2019-11-26 02:19:18,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9cb30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:19:18, skipping insertion in model container [2019-11-26 02:19:18,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:19:18" (3/3) ... [2019-11-26 02:19:18,489 INFO L109 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2019-11-26 02:19:18,526 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,526 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,526 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,527 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,527 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,527 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,527 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,528 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,528 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,528 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,529 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,529 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,529 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,529 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,530 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,530 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,530 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,530 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,531 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,531 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,531 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,531 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,532 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,532 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,532 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,532 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,533 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,533 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,533 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,533 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,534 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,534 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,534 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,534 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,535 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,535 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,535 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,535 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,535 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,536 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,536 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,536 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,536 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,537 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,537 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,537 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,537 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,538 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,538 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,538 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,539 WARN L315 ript$VariableManager]: TermVariabe thread2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,539 WARN L315 ript$VariableManager]: TermVariabe thread2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,539 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,539 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,539 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,540 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,540 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,542 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,543 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,543 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,543 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,543 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,544 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,544 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,545 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,545 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,545 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,546 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,547 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,547 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,548 WARN L315 ript$VariableManager]: TermVariabe thread2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,548 WARN L315 ript$VariableManager]: TermVariabe thread2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,548 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,548 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,548 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,549 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,549 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,549 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:19:18,593 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:19:18,593 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:19:18,599 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:19:18,609 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:19:18,628 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:19:18,628 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:19:18,628 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:19:18,628 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:19:18,629 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:19:18,629 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:19:18,629 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:19:18,629 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:19:18,641 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 144 places, 140 transitions [2019-11-26 02:19:18,718 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 747 states. [2019-11-26 02:19:18,721 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states. [2019-11-26 02:19:18,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-26 02:19:18,755 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:19:18,757 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:19:18,757 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:19:18,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:19:18,762 INFO L82 PathProgramCache]: Analyzing trace with hash 986203612, now seen corresponding path program 1 times [2019-11-26 02:19:18,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:19:18,769 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543315467] [2019-11-26 02:19:18,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:19:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:19:19,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:19:19,009 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543315467] [2019-11-26 02:19:19,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:19:19,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:19:19,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882933299] [2019-11-26 02:19:19,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:19:19,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:19:19,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:19:19,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:19:19,026 INFO L87 Difference]: Start difference. First operand 747 states. Second operand 3 states. [2019-11-26 02:19:19,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:19:19,168 INFO L93 Difference]: Finished difference Result 567 states and 1171 transitions. [2019-11-26 02:19:19,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:19:19,169 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2019-11-26 02:19:19,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:19:19,192 INFO L225 Difference]: With dead ends: 567 [2019-11-26 02:19:19,193 INFO L226 Difference]: Without dead ends: 559 [2019-11-26 02:19:19,199 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:19:19,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2019-11-26 02:19:19,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2019-11-26 02:19:19,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2019-11-26 02:19:19,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1163 transitions. [2019-11-26 02:19:19,293 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1163 transitions. Word has length 65 [2019-11-26 02:19:19,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:19:19,294 INFO L462 AbstractCegarLoop]: Abstraction has 559 states and 1163 transitions. [2019-11-26 02:19:19,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:19:19,294 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1163 transitions. [2019-11-26 02:19:19,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-26 02:19:19,298 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:19:19,298 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:19:19,298 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:19:19,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:19:19,299 INFO L82 PathProgramCache]: Analyzing trace with hash -2082923266, now seen corresponding path program 2 times [2019-11-26 02:19:19,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:19:19,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333902961] [2019-11-26 02:19:19,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:19:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:19:19,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:19:19,489 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333902961] [2019-11-26 02:19:19,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:19:19,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:19:19,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112657221] [2019-11-26 02:19:19,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:19:19,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:19:19,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:19:19,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:19:19,492 INFO L87 Difference]: Start difference. First operand 559 states and 1163 transitions. Second operand 5 states. [2019-11-26 02:19:19,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:19:19,568 INFO L93 Difference]: Finished difference Result 559 states and 1162 transitions. [2019-11-26 02:19:19,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:19:19,569 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-11-26 02:19:19,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:19:19,573 INFO L225 Difference]: With dead ends: 559 [2019-11-26 02:19:19,573 INFO L226 Difference]: Without dead ends: 511 [2019-11-26 02:19:19,574 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:19:19,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2019-11-26 02:19:19,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2019-11-26 02:19:19,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 511 states. [2019-11-26 02:19:19,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 1069 transitions. [2019-11-26 02:19:19,608 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 1069 transitions. Word has length 65 [2019-11-26 02:19:19,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:19:19,609 INFO L462 AbstractCegarLoop]: Abstraction has 511 states and 1069 transitions. [2019-11-26 02:19:19,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:19:19,610 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 1069 transitions. [2019-11-26 02:19:19,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-26 02:19:19,616 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:19:19,616 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:19:19,617 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:19:19,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:19:19,617 INFO L82 PathProgramCache]: Analyzing trace with hash -450377640, now seen corresponding path program 1 times [2019-11-26 02:19:19,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:19:19,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136766114] [2019-11-26 02:19:19,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:19:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:19:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:19:19,766 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:19:19,767 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:19:19,854 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:19:19,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:19:19 BasicIcfg [2019-11-26 02:19:19,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:19:19,857 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:19:19,857 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:19:19,857 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:19:19,858 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:19:18" (3/4) ... [2019-11-26 02:19:19,860 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:19:19,962 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_17734d93-0a1a-4fa1-b02c-a00815f1d6bc/bin/utaipan/witness.graphml [2019-11-26 02:19:19,962 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:19:19,964 INFO L168 Benchmark]: Toolchain (without parser) took 2597.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 939.3 MB in the beginning and 956.0 MB in the end (delta: -16.7 MB). Peak memory consumption was 129.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:19:19,965 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:19:19,966 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -178.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:19:19,966 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:19:19,967 INFO L168 Benchmark]: Boogie Preprocessor took 23.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:19:19,967 INFO L168 Benchmark]: RCFGBuilder took 469.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:19:19,968 INFO L168 Benchmark]: TraceAbstraction took 1373.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.7 MB in the end (delta: 118.2 MB). Peak memory consumption was 118.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:19:19,968 INFO L168 Benchmark]: Witness Printer took 105.84 ms. Allocated memory is still 1.2 GB. Free memory was 966.7 MB in the beginning and 956.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:19:19,971 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 584.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -178.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 469.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1373.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.7 MB in the end (delta: 118.2 MB). Peak memory consumption was 118.2 MB. Max. memory is 11.5 GB. * Witness Printer took 105.84 ms. Allocated memory is still 1.2 GB. Free memory was 966.7 MB in the beginning and 956.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 708]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L674] 0 int data1, data2; VAL [data1=0, data2=0] [L673] 0 pthread_mutex_t ma, mb; VAL [data1=0, data2=0, ma={3:0}, mb={5:0}] [L697] 0 pthread_t t1, t2; VAL [data1=0, data2=0, ma={3:0}, mb={5:0}] [L700] 0 data1 = 10 VAL [data1=10, data2=0, ma={3:0}, mb={5:0}] [L701] 0 data2 = 10 VAL [data1=10, data2=10, ma={3:0}, mb={5:0}] [L702] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={3:0}, mb={5:0}] [L703] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=10, data2=10, ma={3:0}, mb={5:0}] [L704] 0 \read(t1) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=10, data2=10, ma={3:0}, mb={5:0}] [L678] 1 data1++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=10, ma={3:0}, mb={5:0}] [L681] 1 data2++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={5:0}] [L688] 2 data1+=5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={3:0}, mb={5:0}] [L683] 1 return 0; VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={3:0}, mb={5:0}] [L691] 2 data2-=6 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={5:0}] [L693] 2 return 0; VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={5:0}] [L704] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={5:0}] [L705] 0 \read(t2) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={5:0}] [L705] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={5:0}] [L706] COND TRUE 0 data1==16 && data2==5 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={5:0}] [L708] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 160 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 189 SDtfs, 94 SDslu, 176 SDs, 0 SdLazy, 39 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=747occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 23936 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...