./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 511c6dfc7d5bd28721d42de204124e2d16d0e544 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-f470102 [2019-12-07 13:18:33,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:18:33,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:18:33,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:18:33,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:18:33,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:18:33,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:18:33,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:18:33,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:18:33,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:18:33,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:18:33,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:18:33,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:18:33,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:18:33,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:18:33,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:18:33,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:18:33,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:18:33,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:18:33,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:18:33,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:18:33,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:18:33,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:18:33,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:18:33,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:18:33,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:18:33,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:18:33,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:18:33,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:18:33,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:18:33,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:18:33,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:18:33,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:18:33,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:18:33,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:18:33,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:18:33,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:18:33,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:18:33,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:18:33,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:18:33,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:18:33,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 13:18:33,572 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:18:33,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:18:33,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:18:33,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:18:33,573 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:18:33,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:18:33,573 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:18:33,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:18:33,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:18:33,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:18:33,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:18:33,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:18:33,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:18:33,574 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:18:33,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:18:33,575 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:18:33,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:18:33,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:18:33,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:18:33,575 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:18:33,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:18:33,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:18:33,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:18:33,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:18:33,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:18:33,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:18:33,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:18:33,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:18:33,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:18:33,576 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 511c6dfc7d5bd28721d42de204124e2d16d0e544 [2019-12-07 13:18:33,685 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:18:33,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:18:33,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:18:33,700 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:18:33,700 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:18:33,701 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/bin/uautomizer/../../sv-benchmarks/c/pthread-lit/qw2004-2.i [2019-12-07 13:18:33,740 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/bin/uautomizer/data/67900406b/e6e6518f8dea4a97898944246bfa62e5/FLAG34c2754b2 [2019-12-07 13:18:34,160 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:18:34,161 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/sv-benchmarks/c/pthread-lit/qw2004-2.i [2019-12-07 13:18:34,170 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/bin/uautomizer/data/67900406b/e6e6518f8dea4a97898944246bfa62e5/FLAG34c2754b2 [2019-12-07 13:18:34,522 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/bin/uautomizer/data/67900406b/e6e6518f8dea4a97898944246bfa62e5 [2019-12-07 13:18:34,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:18:34,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:18:34,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:18:34,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:18:34,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:18:34,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:18:34" (1/1) ... [2019-12-07 13:18:34,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b03e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:18:34, skipping insertion in model container [2019-12-07 13:18:34,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:18:34" (1/1) ... [2019-12-07 13:18:34,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:18:34,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:18:34,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:18:34,790 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:18:34,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:18:34,866 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:18:34,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:18:34 WrapperNode [2019-12-07 13:18:34,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:18:34,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:18:34,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:18:34,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:18:34,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:18:34" (1/1) ... [2019-12-07 13:18:34,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:18:34" (1/1) ... [2019-12-07 13:18:34,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:18:34,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:18:34,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:18:34,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:18:34,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:18:34" (1/1) ... [2019-12-07 13:18:34,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:18:34" (1/1) ... [2019-12-07 13:18:34,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:18:34" (1/1) ... [2019-12-07 13:18:34,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:18:34" (1/1) ... [2019-12-07 13:18:34,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:18:34" (1/1) ... [2019-12-07 13:18:34,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:18:34" (1/1) ... [2019-12-07 13:18:34,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:18:34" (1/1) ... [2019-12-07 13:18:34,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:18:34,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:18:34,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:18:34,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:18:34,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:18:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/bin/uautomizer/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 [2019-12-07 13:18:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2019-12-07 13:18:34,962 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2019-12-07 13:18:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 13:18:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-07 13:18:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:18:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:18:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-07 13:18:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:18:34,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:18:34,964 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-07 13:18:35,155 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:18:35,155 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 13:18:35,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:18:35 BoogieIcfgContainer [2019-12-07 13:18:35,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:18:35,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:18:35,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:18:35,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:18:35,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:18:34" (1/3) ... [2019-12-07 13:18:35,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320b7414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:18:35, skipping insertion in model container [2019-12-07 13:18:35,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:18:34" (2/3) ... [2019-12-07 13:18:35,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320b7414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:18:35, skipping insertion in model container [2019-12-07 13:18:35,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:18:35" (3/3) ... [2019-12-07 13:18:35,161 INFO L109 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2019-12-07 13:18:35,167 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-07 13:18:35,168 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:18:35,172 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:18:35,173 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-07 13:18:35,189 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,189 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,189 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,189 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,189 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,189 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,190 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,190 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,190 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,190 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,190 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,190 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,190 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,190 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,190 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,191 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,191 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,191 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,191 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,191 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,191 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,191 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:18:35,200 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 13:18:35,212 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:18:35,212 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:18:35,212 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:18:35,212 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:18:35,212 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:18:35,213 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:18:35,213 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:18:35,213 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:18:35,221 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 80 transitions [2019-12-07 13:18:35,222 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 80 transitions [2019-12-07 13:18:35,251 INFO L134 PetriNetUnfolder]: 5/79 cut-off events. [2019-12-07 13:18:35,251 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 13:18:35,255 INFO L76 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 5/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs. 3/76 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2019-12-07 13:18:35,258 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 80 transitions [2019-12-07 13:18:35,270 INFO L134 PetriNetUnfolder]: 5/79 cut-off events. [2019-12-07 13:18:35,271 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 13:18:35,272 INFO L76 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 5/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs. 3/76 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2019-12-07 13:18:35,274 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1620 [2019-12-07 13:18:35,275 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-07 13:18:36,426 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1740 [2019-12-07 13:18:36,426 INFO L214 etLargeBlockEncoding]: Total number of compositions: 86 [2019-12-07 13:18:36,429 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 14 transitions [2019-12-07 13:18:36,437 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 30 states. [2019-12-07 13:18:36,439 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-12-07 13:18:36,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 13:18:36,444 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:18:36,445 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 13:18:36,445 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:18:36,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:18:36,450 INFO L82 PathProgramCache]: Analyzing trace with hash 9797985, now seen corresponding path program 1 times [2019-12-07 13:18:36,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:18:36,456 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905156441] [2019-12-07 13:18:36,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:18:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:18:36,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:18:36,564 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905156441] [2019-12-07 13:18:36,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:18:36,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:18:36,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486548854] [2019-12-07 13:18:36,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:18:36,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:18:36,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:18:36,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:18:36,579 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2019-12-07 13:18:36,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:18:36,597 INFO L93 Difference]: Finished difference Result 48 states and 84 transitions. [2019-12-07 13:18:36,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:18:36,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 13:18:36,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:18:36,607 INFO L225 Difference]: With dead ends: 48 [2019-12-07 13:18:36,607 INFO L226 Difference]: Without dead ends: 27 [2019-12-07 13:18:36,608 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:18:36,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-07 13:18:36,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2019-12-07 13:18:36,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 13:18:36,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 29 transitions. [2019-12-07 13:18:36,629 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 29 transitions. Word has length 4 [2019-12-07 13:18:36,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:18:36,630 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 29 transitions. [2019-12-07 13:18:36,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:18:36,630 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 29 transitions. [2019-12-07 13:18:36,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 13:18:36,630 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:18:36,630 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 13:18:36,631 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:18:36,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:18:36,631 INFO L82 PathProgramCache]: Analyzing trace with hash 303700615, now seen corresponding path program 1 times [2019-12-07 13:18:36,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:18:36,631 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420395400] [2019-12-07 13:18:36,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:18:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:18:36,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:18:36,670 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420395400] [2019-12-07 13:18:36,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:18:36,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 13:18:36,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964743245] [2019-12-07 13:18:36,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:18:36,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:18:36,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:18:36,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:18:36,672 INFO L87 Difference]: Start difference. First operand 18 states and 29 transitions. Second operand 3 states. [2019-12-07 13:18:36,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:18:36,676 INFO L93 Difference]: Finished difference Result 15 states and 23 transitions. [2019-12-07 13:18:36,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:18:36,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 13:18:36,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:18:36,677 INFO L225 Difference]: With dead ends: 15 [2019-12-07 13:18:36,677 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 13:18:36,678 INFO L630 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 [2019-12-07 13:18:36,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 13:18:36,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 13:18:36,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 13:18:36,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 23 transitions. [2019-12-07 13:18:36,680 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 23 transitions. Word has length 5 [2019-12-07 13:18:36,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:18:36,681 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 23 transitions. [2019-12-07 13:18:36,681 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:18:36,681 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 23 transitions. [2019-12-07 13:18:36,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 13:18:36,681 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:18:36,681 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:18:36,682 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:18:36,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:18:36,682 INFO L82 PathProgramCache]: Analyzing trace with hash -201486631, now seen corresponding path program 1 times [2019-12-07 13:18:36,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:18:36,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487074375] [2019-12-07 13:18:36,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:18:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:18:36,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:18:36,723 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487074375] [2019-12-07 13:18:36,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:18:36,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:18:36,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48319239] [2019-12-07 13:18:36,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:18:36,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:18:36,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:18:36,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:18:36,725 INFO L87 Difference]: Start difference. First operand 15 states and 23 transitions. Second operand 3 states. [2019-12-07 13:18:36,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:18:36,729 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2019-12-07 13:18:36,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:18:36,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-07 13:18:36,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:18:36,730 INFO L225 Difference]: With dead ends: 18 [2019-12-07 13:18:36,730 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 13:18:36,731 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:18:36,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 13:18:36,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 13:18:36,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 13:18:36,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-12-07 13:18:36,733 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 20 transitions. Word has length 7 [2019-12-07 13:18:36,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:18:36,733 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-12-07 13:18:36,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:18:36,733 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2019-12-07 13:18:36,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 13:18:36,734 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:18:36,734 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:18:36,734 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:18:36,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:18:36,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1970912570, now seen corresponding path program 1 times [2019-12-07 13:18:36,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:18:36,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487689527] [2019-12-07 13:18:36,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:18:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:18:36,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:18:36,758 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487689527] [2019-12-07 13:18:36,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:18:36,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:18:36,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386722275] [2019-12-07 13:18:36,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:18:36,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:18:36,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:18:36,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:18:36,759 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. Second operand 3 states. [2019-12-07 13:18:36,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:18:36,763 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-12-07 13:18:36,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:18:36,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 13:18:36,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:18:36,763 INFO L225 Difference]: With dead ends: 15 [2019-12-07 13:18:36,763 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 13:18:36,764 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 [2019-12-07 13:18:36,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 13:18:36,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 13:18:36,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 13:18:36,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-12-07 13:18:36,765 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2019-12-07 13:18:36,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:18:36,765 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-12-07 13:18:36,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:18:36,766 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-12-07 13:18:36,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 13:18:36,766 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:18:36,766 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:18:36,766 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:18:36,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:18:36,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1466848850, now seen corresponding path program 2 times [2019-12-07 13:18:36,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:18:36,767 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918045623] [2019-12-07 13:18:36,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:18:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:18:36,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:18:36,804 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918045623] [2019-12-07 13:18:36,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:18:36,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 13:18:36,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351749640] [2019-12-07 13:18:36,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:18:36,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:18:36,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:18:36,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:18:36,805 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 5 states. [2019-12-07 13:18:36,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:18:36,825 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-07 13:18:36,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:18:36,826 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-07 13:18:36,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:18:36,826 INFO L225 Difference]: With dead ends: 13 [2019-12-07 13:18:36,826 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 13:18:36,826 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:18:36,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 13:18:36,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 13:18:36,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 13:18:36,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-12-07 13:18:36,828 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-12-07 13:18:36,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:18:36,828 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-12-07 13:18:36,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:18:36,828 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-12-07 13:18:36,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 13:18:36,828 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:18:36,828 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:18:36,829 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:18:36,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:18:36,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1471836440, now seen corresponding path program 3 times [2019-12-07 13:18:36,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:18:36,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889860640] [2019-12-07 13:18:36,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:18:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:18:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:18:36,859 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:18:36,859 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:18:36,861 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [291] [291] ULTIMATE.startENTRY-->L731-1: Formula: (let ((.cse0 (store |v_#valid_35| 0 0))) (and (= v_~stoppingEvent~0_81 0) (= 0 v_~stopped~0_60) (= |v_#valid_33| (store .cse0 |v_ULTIMATE.start_main_~#t~0.base_26| 1)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t~0.base_26|)) (= 1 v_~pendingIo~0_88) (< 0 |v_#StackHeapBarrier_9|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t~0.base_26|) (= v_~stoppingFlag~0_47 0) (= |v_#NULL.offset_3| 0) (= 0 |v_#NULL.base_3|) (= (store |v_#length_10| |v_ULTIMATE.start_main_~#t~0.base_26| 4) |v_#length_9|) (= |v_ULTIMATE.start_main_~#t~0.offset_19| 0) (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t~0.base_26| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t~0.base_26|) |v_ULTIMATE.start_main_~#t~0.offset_19| 0)) |v_#memory_int_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_10|, #length=|v_#length_10|} OutVars{ULTIMATE.start_main_#t~ret7.base=|v_ULTIMATE.start_main_#t~ret7.base_22|, ~stoppingFlag~0=v_~stoppingFlag~0_47, ~stopped~0=v_~stopped~0_60, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_19|, ULTIMATE.start_main_~#t~0.offset=|v_ULTIMATE.start_main_~#t~0.offset_19|, #NULL.base=|v_#NULL.base_3|, ~pendingIo~0=v_~pendingIo~0_88, ~stoppingEvent~0=v_~stoppingEvent~0_81, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~ret7.offset=|v_ULTIMATE.start_main_#t~ret7.offset_22|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_9|, ULTIMATE.start_main_~#t~0.base=|v_ULTIMATE.start_main_~#t~0.base_26|, #length=|v_#length_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret7.base, ~stoppingFlag~0, ~stopped~0, #NULL.offset, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~#t~0.offset, #NULL.base, ~pendingIo~0, ~stoppingEvent~0, ULTIMATE.start_main_#t~ret7.offset, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t~0.base, #length] because there is no mapped edge [2019-12-07 13:18:36,862 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [268] [268] L731-2-->L691: Formula: (and (= v_ULTIMATE.start_BCSP_PnpAdd_~arg.offset_8 |v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset_8|) (= |v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.base_8| 0) (= 0 |v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset_8|) (= v_~stoppingFlag~0_26 0) (= v_ULTIMATE.start_BCSP_PnpAdd_~arg.base_8 |v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.base_8|)) InVars {~stoppingFlag~0=v_~stoppingFlag~0_26} OutVars{ULTIMATE.start_BCSP_PnpAdd_#res.offset=|v_ULTIMATE.start_BCSP_PnpAdd_#res.offset_14|, ULTIMATE.start_BCSP_PnpAdd_~arg.base=v_ULTIMATE.start_BCSP_PnpAdd_~arg.base_8, ULTIMATE.start_BCSP_PnpAdd_#in~arg.base=|v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.base_8|, ~stoppingFlag~0=v_~stoppingFlag~0_26, ULTIMATE.start_BCSP_PnpAdd_#res.base=|v_ULTIMATE.start_BCSP_PnpAdd_#res.base_14|, ULTIMATE.start_BCSP_IoIncrement_#res=|v_ULTIMATE.start_BCSP_IoIncrement_#res_19|, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_6|, ULTIMATE.start_BCSP_PnpAdd_#t~ret5=|v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_16|, ULTIMATE.start_BCSP_PnpAdd_~status~0=v_ULTIMATE.start_BCSP_PnpAdd_~status~0_16, ULTIMATE.start_BCSP_PnpAdd_~arg.offset=v_ULTIMATE.start_BCSP_PnpAdd_~arg.offset_8, ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset=|v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_BCSP_PnpAdd_#res.offset, ULTIMATE.start_BCSP_PnpAdd_~arg.base, ULTIMATE.start_BCSP_PnpAdd_#in~arg.base, ULTIMATE.start_BCSP_PnpAdd_#res.base, ULTIMATE.start_BCSP_IoIncrement_#res, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_BCSP_PnpAdd_#t~ret5, ULTIMATE.start_BCSP_PnpAdd_~status~0, ULTIMATE.start_BCSP_PnpAdd_~arg.offset, ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset] because there is no mapped edge [2019-12-07 13:18:36,862 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [250] [250] BCSP_PnpStopENTRY-->L703: Formula: (and (= v_BCSP_PnpStopThread1of1ForFork0_~arg.base_2 |v_BCSP_PnpStopThread1of1ForFork0_#in~arg.base_4|) (= v_~stoppingFlag~0_17 1) (= v_BCSP_PnpStopThread1of1ForFork0_~arg.offset_2 |v_BCSP_PnpStopThread1of1ForFork0_#in~arg.offset_4|)) InVars {BCSP_PnpStopThread1of1ForFork0_#in~arg.offset=|v_BCSP_PnpStopThread1of1ForFork0_#in~arg.offset_4|, BCSP_PnpStopThread1of1ForFork0_#in~arg.base=|v_BCSP_PnpStopThread1of1ForFork0_#in~arg.base_4|} OutVars{BCSP_PnpStopThread1of1ForFork0_#in~arg.offset=|v_BCSP_PnpStopThread1of1ForFork0_#in~arg.offset_4|, ~stoppingFlag~0=v_~stoppingFlag~0_17, BCSP_PnpStopThread1of1ForFork0_~arg.base=v_BCSP_PnpStopThread1of1ForFork0_~arg.base_2, BCSP_PnpStopThread1of1ForFork0_~arg.offset=v_BCSP_PnpStopThread1of1ForFork0_~arg.offset_2, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4=|v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_14|, BCSP_PnpStopThread1of1ForFork0_#in~arg.base=|v_BCSP_PnpStopThread1of1ForFork0_#in~arg.base_4|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0=v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_13} AuxVars[] AssignedVars[~stoppingFlag~0, BCSP_PnpStopThread1of1ForFork0_~arg.base, BCSP_PnpStopThread1of1ForFork0_~arg.offset, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0] because there is no mapped edge [2019-12-07 13:18:36,862 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [269] [269] L703-->L704-2: Formula: (and (= |v_BCSP_PnpStopThread1of1ForFork0_dec_#res_16| |v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_21|) (= v_~pendingIo~0_61 (+ v_~pendingIo~0_60 1)) (= |v_BCSP_PnpStopThread1of1ForFork0_dec_#res_16| v_BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0_17) (= v_~pendingIo~0_60 v_BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0_17)) InVars {~pendingIo~0=v_~pendingIo~0_61} OutVars{BCSP_PnpStopThread1of1ForFork0_dec_#res=|v_BCSP_PnpStopThread1of1ForFork0_dec_#res_16|, BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0=v_BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0_17, BCSP_PnpStopThread1of1ForFork0_dec_#t~post3=|v_BCSP_PnpStopThread1of1ForFork0_dec_#t~post3_16|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4=|v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_21|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0=v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_21, ~pendingIo~0=v_~pendingIo~0_60} AuxVars[] AssignedVars[BCSP_PnpStopThread1of1ForFork0_dec_#res, BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0, BCSP_PnpStopThread1of1ForFork0_dec_#t~post3, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0, ~pendingIo~0] because there is no mapped edge [2019-12-07 13:18:36,862 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [256] [256] L691-->L711-1: Formula: (and (= |v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_15| |v_ULTIMATE.start_BCSP_IoIncrement_#res_16|) (= 0 |v_ULTIMATE.start_BCSP_IoIncrement_#res_16|) (= v_~pendingIo~0_50 (+ v_~pendingIo~0_51 1))) InVars {~pendingIo~0=v_~pendingIo~0_51} OutVars{ULTIMATE.start_BCSP_IoIncrement_#res=|v_ULTIMATE.start_BCSP_IoIncrement_#res_16|, ULTIMATE.start_BCSP_PnpAdd_#t~ret5=|v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_15|, ~pendingIo~0=v_~pendingIo~0_50} AuxVars[] AssignedVars[ULTIMATE.start_BCSP_IoIncrement_#res, ULTIMATE.start_BCSP_PnpAdd_#t~ret5, ~pendingIo~0] because there is no mapped edge [2019-12-07 13:18:36,862 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [283] [283] L704-2-->BCSP_PnpStopEXIT: Formula: (let ((.cse0 (= |v_BCSP_PnpStopThread1of1ForFork0_#res.base_23| 0)) (.cse1 (= 1 v_~stopped~0_51)) (.cse3 (= v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_30 |v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_39|)) (.cse2 (= 0 v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_30)) (.cse4 (= |v_BCSP_PnpStopThread1of1ForFork0_#res.offset_23| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= v_~stoppingEvent~0_61 1)) (and .cse0 .cse1 (<= 0 (+ |v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_39| 2147483648)) (not (= v_~stoppingEvent~0_62 0)) .cse3 (not .cse2) (<= |v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_39| 2147483647) .cse4 (= v_~stoppingEvent~0_62 v_~stoppingEvent~0_61)))) InVars {~stoppingEvent~0=v_~stoppingEvent~0_62, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4=|v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_39|} OutVars{~stoppingEvent~0=v_~stoppingEvent~0_61, BCSP_PnpStopThread1of1ForFork0_#res.base=|v_BCSP_PnpStopThread1of1ForFork0_#res.base_23|, ~stopped~0=v_~stopped~0_51, BCSP_PnpStopThread1of1ForFork0_#res.offset=|v_BCSP_PnpStopThread1of1ForFork0_#res.offset_23|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4=|v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_38|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0=v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_30} AuxVars[] AssignedVars[~stoppingEvent~0, BCSP_PnpStopThread1of1ForFork0_#res.base, ~stopped~0, BCSP_PnpStopThread1of1ForFork0_#res.offset, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0] because there is no mapped edge [2019-12-07 13:18:36,862 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [280] [280] L711-1-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (ite (= 0 v_~stopped~0_40) 1 0) |v_ULTIMATE.start___VERIFIER_assert_#in~cond_21|) (= v_ULTIMATE.start___VERIFIER_assert_~cond_21 |v_ULTIMATE.start___VERIFIER_assert_#in~cond_21|) (= 0 v_ULTIMATE.start___VERIFIER_assert_~cond_21) (= v_ULTIMATE.start_BCSP_PnpAdd_~status~0_23 0) (= |v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_30| v_ULTIMATE.start_BCSP_PnpAdd_~status~0_23)) InVars {~stopped~0=v_~stopped~0_40, ULTIMATE.start_BCSP_PnpAdd_#t~ret5=|v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_30|} OutVars{ULTIMATE.start___VERIFIER_assert_~cond=v_ULTIMATE.start___VERIFIER_assert_~cond_21, ~stopped~0=v_~stopped~0_40, ULTIMATE.start___VERIFIER_assert_#in~cond=|v_ULTIMATE.start___VERIFIER_assert_#in~cond_21|, ULTIMATE.start_BCSP_PnpAdd_#t~ret5=|v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_29|, ULTIMATE.start_BCSP_PnpAdd_~status~0=v_ULTIMATE.start_BCSP_PnpAdd_~status~0_23} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_BCSP_PnpAdd_#t~ret5, ULTIMATE.start_BCSP_PnpAdd_~status~0] because there is no mapped edge [2019-12-07 13:18:36,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:18:36 BasicIcfg [2019-12-07 13:18:36,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:18:36,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:18:36,871 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:18:36,871 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:18:36,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:18:35" (3/4) ... [2019-12-07 13:18:36,873 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 13:18:36,873 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [291] [291] ULTIMATE.startENTRY-->L731-1: Formula: (let ((.cse0 (store |v_#valid_35| 0 0))) (and (= v_~stoppingEvent~0_81 0) (= 0 v_~stopped~0_60) (= |v_#valid_33| (store .cse0 |v_ULTIMATE.start_main_~#t~0.base_26| 1)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t~0.base_26|)) (= 1 v_~pendingIo~0_88) (< 0 |v_#StackHeapBarrier_9|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t~0.base_26|) (= v_~stoppingFlag~0_47 0) (= |v_#NULL.offset_3| 0) (= 0 |v_#NULL.base_3|) (= (store |v_#length_10| |v_ULTIMATE.start_main_~#t~0.base_26| 4) |v_#length_9|) (= |v_ULTIMATE.start_main_~#t~0.offset_19| 0) (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t~0.base_26| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t~0.base_26|) |v_ULTIMATE.start_main_~#t~0.offset_19| 0)) |v_#memory_int_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_10|, #length=|v_#length_10|} OutVars{ULTIMATE.start_main_#t~ret7.base=|v_ULTIMATE.start_main_#t~ret7.base_22|, ~stoppingFlag~0=v_~stoppingFlag~0_47, ~stopped~0=v_~stopped~0_60, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_19|, ULTIMATE.start_main_~#t~0.offset=|v_ULTIMATE.start_main_~#t~0.offset_19|, #NULL.base=|v_#NULL.base_3|, ~pendingIo~0=v_~pendingIo~0_88, ~stoppingEvent~0=v_~stoppingEvent~0_81, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~ret7.offset=|v_ULTIMATE.start_main_#t~ret7.offset_22|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_9|, ULTIMATE.start_main_~#t~0.base=|v_ULTIMATE.start_main_~#t~0.base_26|, #length=|v_#length_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret7.base, ~stoppingFlag~0, ~stopped~0, #NULL.offset, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~#t~0.offset, #NULL.base, ~pendingIo~0, ~stoppingEvent~0, ULTIMATE.start_main_#t~ret7.offset, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t~0.base, #length] because there is no mapped edge [2019-12-07 13:18:36,873 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [268] [268] L731-2-->L691: Formula: (and (= v_ULTIMATE.start_BCSP_PnpAdd_~arg.offset_8 |v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset_8|) (= |v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.base_8| 0) (= 0 |v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset_8|) (= v_~stoppingFlag~0_26 0) (= v_ULTIMATE.start_BCSP_PnpAdd_~arg.base_8 |v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.base_8|)) InVars {~stoppingFlag~0=v_~stoppingFlag~0_26} OutVars{ULTIMATE.start_BCSP_PnpAdd_#res.offset=|v_ULTIMATE.start_BCSP_PnpAdd_#res.offset_14|, ULTIMATE.start_BCSP_PnpAdd_~arg.base=v_ULTIMATE.start_BCSP_PnpAdd_~arg.base_8, ULTIMATE.start_BCSP_PnpAdd_#in~arg.base=|v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.base_8|, ~stoppingFlag~0=v_~stoppingFlag~0_26, ULTIMATE.start_BCSP_PnpAdd_#res.base=|v_ULTIMATE.start_BCSP_PnpAdd_#res.base_14|, ULTIMATE.start_BCSP_IoIncrement_#res=|v_ULTIMATE.start_BCSP_IoIncrement_#res_19|, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_6|, ULTIMATE.start_BCSP_PnpAdd_#t~ret5=|v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_16|, ULTIMATE.start_BCSP_PnpAdd_~status~0=v_ULTIMATE.start_BCSP_PnpAdd_~status~0_16, ULTIMATE.start_BCSP_PnpAdd_~arg.offset=v_ULTIMATE.start_BCSP_PnpAdd_~arg.offset_8, ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset=|v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_BCSP_PnpAdd_#res.offset, ULTIMATE.start_BCSP_PnpAdd_~arg.base, ULTIMATE.start_BCSP_PnpAdd_#in~arg.base, ULTIMATE.start_BCSP_PnpAdd_#res.base, ULTIMATE.start_BCSP_IoIncrement_#res, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_BCSP_PnpAdd_#t~ret5, ULTIMATE.start_BCSP_PnpAdd_~status~0, ULTIMATE.start_BCSP_PnpAdd_~arg.offset, ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset] because there is no mapped edge [2019-12-07 13:18:36,873 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [250] [250] BCSP_PnpStopENTRY-->L703: Formula: (and (= v_BCSP_PnpStopThread1of1ForFork0_~arg.base_2 |v_BCSP_PnpStopThread1of1ForFork0_#in~arg.base_4|) (= v_~stoppingFlag~0_17 1) (= v_BCSP_PnpStopThread1of1ForFork0_~arg.offset_2 |v_BCSP_PnpStopThread1of1ForFork0_#in~arg.offset_4|)) InVars {BCSP_PnpStopThread1of1ForFork0_#in~arg.offset=|v_BCSP_PnpStopThread1of1ForFork0_#in~arg.offset_4|, BCSP_PnpStopThread1of1ForFork0_#in~arg.base=|v_BCSP_PnpStopThread1of1ForFork0_#in~arg.base_4|} OutVars{BCSP_PnpStopThread1of1ForFork0_#in~arg.offset=|v_BCSP_PnpStopThread1of1ForFork0_#in~arg.offset_4|, ~stoppingFlag~0=v_~stoppingFlag~0_17, BCSP_PnpStopThread1of1ForFork0_~arg.base=v_BCSP_PnpStopThread1of1ForFork0_~arg.base_2, BCSP_PnpStopThread1of1ForFork0_~arg.offset=v_BCSP_PnpStopThread1of1ForFork0_~arg.offset_2, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4=|v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_14|, BCSP_PnpStopThread1of1ForFork0_#in~arg.base=|v_BCSP_PnpStopThread1of1ForFork0_#in~arg.base_4|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0=v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_13} AuxVars[] AssignedVars[~stoppingFlag~0, BCSP_PnpStopThread1of1ForFork0_~arg.base, BCSP_PnpStopThread1of1ForFork0_~arg.offset, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0] because there is no mapped edge [2019-12-07 13:18:36,873 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [269] [269] L703-->L704-2: Formula: (and (= |v_BCSP_PnpStopThread1of1ForFork0_dec_#res_16| |v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_21|) (= v_~pendingIo~0_61 (+ v_~pendingIo~0_60 1)) (= |v_BCSP_PnpStopThread1of1ForFork0_dec_#res_16| v_BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0_17) (= v_~pendingIo~0_60 v_BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0_17)) InVars {~pendingIo~0=v_~pendingIo~0_61} OutVars{BCSP_PnpStopThread1of1ForFork0_dec_#res=|v_BCSP_PnpStopThread1of1ForFork0_dec_#res_16|, BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0=v_BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0_17, BCSP_PnpStopThread1of1ForFork0_dec_#t~post3=|v_BCSP_PnpStopThread1of1ForFork0_dec_#t~post3_16|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4=|v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_21|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0=v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_21, ~pendingIo~0=v_~pendingIo~0_60} AuxVars[] AssignedVars[BCSP_PnpStopThread1of1ForFork0_dec_#res, BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0, BCSP_PnpStopThread1of1ForFork0_dec_#t~post3, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0, ~pendingIo~0] because there is no mapped edge [2019-12-07 13:18:36,873 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [256] [256] L691-->L711-1: Formula: (and (= |v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_15| |v_ULTIMATE.start_BCSP_IoIncrement_#res_16|) (= 0 |v_ULTIMATE.start_BCSP_IoIncrement_#res_16|) (= v_~pendingIo~0_50 (+ v_~pendingIo~0_51 1))) InVars {~pendingIo~0=v_~pendingIo~0_51} OutVars{ULTIMATE.start_BCSP_IoIncrement_#res=|v_ULTIMATE.start_BCSP_IoIncrement_#res_16|, ULTIMATE.start_BCSP_PnpAdd_#t~ret5=|v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_15|, ~pendingIo~0=v_~pendingIo~0_50} AuxVars[] AssignedVars[ULTIMATE.start_BCSP_IoIncrement_#res, ULTIMATE.start_BCSP_PnpAdd_#t~ret5, ~pendingIo~0] because there is no mapped edge [2019-12-07 13:18:36,873 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [283] [283] L704-2-->BCSP_PnpStopEXIT: Formula: (let ((.cse0 (= |v_BCSP_PnpStopThread1of1ForFork0_#res.base_23| 0)) (.cse1 (= 1 v_~stopped~0_51)) (.cse3 (= v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_30 |v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_39|)) (.cse2 (= 0 v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_30)) (.cse4 (= |v_BCSP_PnpStopThread1of1ForFork0_#res.offset_23| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= v_~stoppingEvent~0_61 1)) (and .cse0 .cse1 (<= 0 (+ |v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_39| 2147483648)) (not (= v_~stoppingEvent~0_62 0)) .cse3 (not .cse2) (<= |v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_39| 2147483647) .cse4 (= v_~stoppingEvent~0_62 v_~stoppingEvent~0_61)))) InVars {~stoppingEvent~0=v_~stoppingEvent~0_62, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4=|v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_39|} OutVars{~stoppingEvent~0=v_~stoppingEvent~0_61, BCSP_PnpStopThread1of1ForFork0_#res.base=|v_BCSP_PnpStopThread1of1ForFork0_#res.base_23|, ~stopped~0=v_~stopped~0_51, BCSP_PnpStopThread1of1ForFork0_#res.offset=|v_BCSP_PnpStopThread1of1ForFork0_#res.offset_23|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4=|v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_38|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0=v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_30} AuxVars[] AssignedVars[~stoppingEvent~0, BCSP_PnpStopThread1of1ForFork0_#res.base, ~stopped~0, BCSP_PnpStopThread1of1ForFork0_#res.offset, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0] because there is no mapped edge [2019-12-07 13:18:36,874 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [280] [280] L711-1-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (ite (= 0 v_~stopped~0_40) 1 0) |v_ULTIMATE.start___VERIFIER_assert_#in~cond_21|) (= v_ULTIMATE.start___VERIFIER_assert_~cond_21 |v_ULTIMATE.start___VERIFIER_assert_#in~cond_21|) (= 0 v_ULTIMATE.start___VERIFIER_assert_~cond_21) (= v_ULTIMATE.start_BCSP_PnpAdd_~status~0_23 0) (= |v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_30| v_ULTIMATE.start_BCSP_PnpAdd_~status~0_23)) InVars {~stopped~0=v_~stopped~0_40, ULTIMATE.start_BCSP_PnpAdd_#t~ret5=|v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_30|} OutVars{ULTIMATE.start___VERIFIER_assert_~cond=v_ULTIMATE.start___VERIFIER_assert_~cond_21, ~stopped~0=v_~stopped~0_40, ULTIMATE.start___VERIFIER_assert_#in~cond=|v_ULTIMATE.start___VERIFIER_assert_#in~cond_21|, ULTIMATE.start_BCSP_PnpAdd_#t~ret5=|v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_29|, ULTIMATE.start_BCSP_PnpAdd_~status~0=v_ULTIMATE.start_BCSP_PnpAdd_~status~0_23} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_BCSP_PnpAdd_#t~ret5, ULTIMATE.start_BCSP_PnpAdd_~status~0] because there is no mapped edge [2019-12-07 13:18:36,896 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1ce6854e-f0c9-4cb4-a13f-1b0804938864/bin/uautomizer/witness.graphml [2019-12-07 13:18:36,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:18:36,898 INFO L168 Benchmark]: Toolchain (without parser) took 2370.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 934.1 MB in the beginning and 974.9 MB in the end (delta: -40.9 MB). Peak memory consumption was 63.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:18:36,898 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:18:36,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 934.1 MB in the beginning and 1.1 GB in the end (delta: -136.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:18:36,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.50 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:18:36,899 INFO L168 Benchmark]: Boogie Preprocessor took 18.35 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:18:36,900 INFO L168 Benchmark]: RCFGBuilder took 236.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:18:36,900 INFO L168 Benchmark]: TraceAbstraction took 1713.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 976.7 MB in the end (delta: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:18:36,900 INFO L168 Benchmark]: Witness Printer took 25.69 ms. Allocated memory is still 1.1 GB. Free memory was 976.7 MB in the beginning and 974.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:18:36,902 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 337.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 934.1 MB in the beginning and 1.1 GB in the end (delta: -136.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.50 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.35 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 236.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1713.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 976.7 MB in the end (delta: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. * Witness Printer took 25.69 ms. Allocated memory is still 1.1 GB. Free memory was 976.7 MB in the beginning and 974.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.2s, 79 ProgramPointsBefore, 14 ProgramPointsAfterwards, 80 TransitionsBefore, 14 TransitionsAfterwards, 1620 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 3 ChoiceCompositions, 963 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 1740 CheckedPairsTotal, 86 TotalNumberOfCompositions - CounterExampleResult [Line: 676]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L731] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 76 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 17 SDslu, 25 SDs, 0 SdLazy, 24 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 548 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...