./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 46374fd752f48016661a982099922335aa36fba4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:24:09,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:24:09,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:24:09,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:24:09,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:24:09,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:24:09,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:24:09,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:24:09,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:24:09,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:24:09,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:24:09,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:24:09,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:24:09,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:24:09,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:24:09,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:24:09,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:24:09,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:24:09,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:24:09,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:24:09,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:24:09,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:24:09,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:24:09,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:24:09,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:24:09,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:24:09,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:24:09,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:24:09,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:24:09,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:24:09,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:24:09,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:24:09,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:24:09,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:24:09,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:24:09,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:24:09,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:24:09,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:24:09,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:24:09,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:24:09,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:24:09,614 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:24:09,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:24:09,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:24:09,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:24:09,639 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:24:09,640 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:24:09,640 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:24:09,640 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:24:09,640 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:24:09,641 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:24:09,641 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:24:09,641 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:24:09,641 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:24:09,642 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:24:09,642 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:24:09,642 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:24:09,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:24:09,643 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:24:09,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:24:09,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:24:09,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:24:09,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:24:09,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:24:09,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:24:09,645 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:24:09,645 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:24:09,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:24:09,645 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:24:09,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:24:09,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:24:09,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:24:09,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:09,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:24:09,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:24:09,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:24:09,649 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:24:09,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:24:09,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:24:09,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:24:09,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:24:09,652 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46374fd752f48016661a982099922335aa36fba4 [2021-10-11 02:24:09,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:24:09,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:24:09,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:24:09,938 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:24:09,939 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:24:09,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread-lit/qw2004-1.i [2021-10-11 02:24:10,003 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI/data/4125b136d/3437ea73a13b4ef59ba87557924f2614/FLAGb005866ed [2021-10-11 02:24:10,545 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:24:10,546 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/sv-benchmarks/c/pthread-lit/qw2004-1.i [2021-10-11 02:24:10,559 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI/data/4125b136d/3437ea73a13b4ef59ba87557924f2614/FLAGb005866ed [2021-10-11 02:24:10,874 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI/data/4125b136d/3437ea73a13b4ef59ba87557924f2614 [2021-10-11 02:24:10,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:24:10,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:24:10,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:10,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:24:10,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:24:10,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a802807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10, skipping insertion in model container [2021-10-11 02:24:10,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:24:10,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:24:11,254 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/sv-benchmarks/c/pthread-lit/qw2004-1.i[30003,30016] [2021-10-11 02:24:11,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:11,279 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:24:11,312 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/sv-benchmarks/c/pthread-lit/qw2004-1.i[30003,30016] [2021-10-11 02:24:11,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:11,389 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:24:11,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11 WrapperNode [2021-10-11 02:24:11,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:11,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:11,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:24:11,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:24:11,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:11,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:24:11,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:24:11,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:24:11,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... [2021-10-11 02:24:11,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:24:11,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:24:11,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:24:11,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:24:11,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:24:11,577 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2021-10-11 02:24:11,578 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2021-10-11 02:24:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:24:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-11 02:24:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:24:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:24:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:24:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-11 02:24:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:24:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:24:11,588 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-11 02:24:12,121 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:24:12,124 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-11 02:24:12,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:12 BoogieIcfgContainer [2021-10-11 02:24:12,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:24:12,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:24:12,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:24:12,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:24:12,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:24:10" (1/3) ... [2021-10-11 02:24:12,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135c1845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:12, skipping insertion in model container [2021-10-11 02:24:12,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:11" (2/3) ... [2021-10-11 02:24:12,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135c1845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:12, skipping insertion in model container [2021-10-11 02:24:12,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:12" (3/3) ... [2021-10-11 02:24:12,138 INFO L111 eAbstractionObserver]: Analyzing ICFG qw2004-1.i [2021-10-11 02:24:12,153 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 02:24:12,153 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:24:12,157 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:24:12,157 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:24:12,197 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,198 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,198 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,198 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,199 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,199 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,199 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,199 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,200 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,200 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,200 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,200 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,201 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,201 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,201 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,201 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,201 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,202 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,202 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,202 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,202 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,203 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,203 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,203 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,203 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,204 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,204 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,204 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,204 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,204 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,205 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,205 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,205 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,205 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,206 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,206 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,206 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,206 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,207 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,207 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,207 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,207 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,208 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,208 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,208 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,209 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,209 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,209 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,209 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,209 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,210 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,210 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,210 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,210 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,211 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,211 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,211 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,212 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,212 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,212 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,214 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,215 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,215 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,215 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,215 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,216 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,216 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,216 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,216 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,217 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,217 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:24:12,219 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-11 02:24:12,230 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:24:12,250 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:24:12,250 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:24:12,251 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:24:12,251 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:24:12,251 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:24:12,251 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:24:12,251 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:24:12,251 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:24:12,263 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:24:12,265 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 91 transitions, 187 flow [2021-10-11 02:24:12,268 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 91 transitions, 187 flow [2021-10-11 02:24:12,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 91 transitions, 187 flow [2021-10-11 02:24:12,319 INFO L129 PetriNetUnfolder]: 6/90 cut-off events. [2021-10-11 02:24:12,319 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-11 02:24:12,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 90 events. 6/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2021-10-11 02:24:12,328 INFO L116 LiptonReduction]: Number of co-enabled transitions 2208 [2021-10-11 02:24:15,770 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 8, 1] term [2021-10-11 02:24:15,772 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:24:15,786 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 8, 1] term [2021-10-11 02:24:15,786 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:24:15,835 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 8, 1] term [2021-10-11 02:24:15,835 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:24:15,841 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 8, 1] term [2021-10-11 02:24:15,842 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:24:16,299 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2021-10-11 02:24:16,519 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2021-10-11 02:24:16,899 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 8, 1] term [2021-10-11 02:24:16,899 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:24:16,907 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 8, 1] term [2021-10-11 02:24:16,907 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:24:16,916 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 8, 1] term [2021-10-11 02:24:16,917 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:24:16,924 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 8, 1] term [2021-10-11 02:24:16,924 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:24:16,931 INFO L131 LiptonReduction]: Checked pairs total: 2537 [2021-10-11 02:24:16,931 INFO L133 LiptonReduction]: Total number of compositions: 102 [2021-10-11 02:24:16,937 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 16 places, 14 transitions, 33 flow [2021-10-11 02:24:16,945 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 32 states. [2021-10-11 02:24:16,947 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2021-10-11 02:24:16,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:24:16,952 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:16,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:24:16,953 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:16,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:16,959 INFO L82 PathProgramCache]: Analyzing trace with hash 11541918, now seen corresponding path program 1 times [2021-10-11 02:24:16,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:16,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920809447] [2021-10-11 02:24:16,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:17,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:17,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920809447] [2021-10-11 02:24:17,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:17,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:24:17,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658467253] [2021-10-11 02:24:17,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:17,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:17,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:17,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:17,213 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2021-10-11 02:24:17,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:17,254 INFO L93 Difference]: Finished difference Result 31 states and 50 transitions. [2021-10-11 02:24:17,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:17,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-10-11 02:24:17,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:17,263 INFO L225 Difference]: With dead ends: 31 [2021-10-11 02:24:17,263 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 02:24:17,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:17,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 02:24:17,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-11 02:24:17,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 02:24:17,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-10-11 02:24:17,292 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 4 [2021-10-11 02:24:17,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:17,293 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-11 02:24:17,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:17,293 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-10-11 02:24:17,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:24:17,294 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:17,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:17,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:24:17,294 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:17,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:17,295 INFO L82 PathProgramCache]: Analyzing trace with hash -907954422, now seen corresponding path program 1 times [2021-10-11 02:24:17,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:17,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910384942] [2021-10-11 02:24:17,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:17,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:17,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910384942] [2021-10-11 02:24:17,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:17,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:24:17,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648777177] [2021-10-11 02:24:17,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:24:17,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:17,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:24:17,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:24:17,389 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 6 states. [2021-10-11 02:24:17,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:17,437 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2021-10-11 02:24:17,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:24:17,437 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2021-10-11 02:24:17,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:17,438 INFO L225 Difference]: With dead ends: 16 [2021-10-11 02:24:17,438 INFO L226 Difference]: Without dead ends: 12 [2021-10-11 02:24:17,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:24:17,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-11 02:24:17,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-11 02:24:17,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-11 02:24:17,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2021-10-11 02:24:17,442 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2021-10-11 02:24:17,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:17,442 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-10-11 02:24:17,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:24:17,443 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-10-11 02:24:17,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:24:17,443 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:17,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:17,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:24:17,444 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:17,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:17,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1323538872, now seen corresponding path program 2 times [2021-10-11 02:24:17,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:17,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333821582] [2021-10-11 02:24:17,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:17,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333821582] [2021-10-11 02:24:17,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:17,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:24:17,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341903839] [2021-10-11 02:24:17,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:24:17,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:17,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:24:17,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:24:17,505 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 5 states. [2021-10-11 02:24:17,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:17,527 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-10-11 02:24:17,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:24:17,528 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2021-10-11 02:24:17,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:17,528 INFO L225 Difference]: With dead ends: 11 [2021-10-11 02:24:17,528 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:24:17,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:24:17,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:24:17,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:24:17,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:24:17,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:24:17,530 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-10-11 02:24:17,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:17,530 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:24:17,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:24:17,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:24:17,531 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:24:17,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:24:17,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:24:17 BasicIcfg [2021-10-11 02:24:17,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:24:17,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:24:17,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:24:17,535 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:24:17,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:12" (3/4) ... [2021-10-11 02:24:17,539 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:24:17,544 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure BCSP_PnpStop [2021-10-11 02:24:17,549 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 02:24:17,549 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 02:24:17,550 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:24:17,550 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:24:17,606 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96598ee-59d1-41dc-870e-f34f701e35ad/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:24:17,607 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:24:17,608 INFO L168 Benchmark]: Toolchain (without parser) took 6729.33 ms. Allocated memory was 100.7 MB in the beginning and 176.2 MB in the end (delta: 75.5 MB). Free memory was 68.9 MB in the beginning and 115.9 MB in the end (delta: -47.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:17,609 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 100.7 MB. Free memory was 56.7 MB in the beginning and 56.6 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:17,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 503.03 ms. Allocated memory is still 100.7 MB. Free memory was 68.6 MB in the beginning and 56.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:17,610 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.23 ms. Allocated memory is still 100.7 MB. Free memory was 56.3 MB in the beginning and 54.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:17,610 INFO L168 Benchmark]: Boogie Preprocessor took 24.95 ms. Allocated memory is still 100.7 MB. Free memory was 54.2 MB in the beginning and 53.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:17,615 INFO L168 Benchmark]: RCFGBuilder took 665.18 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 53.0 MB in the beginning and 85.8 MB in the end (delta: -32.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:17,616 INFO L168 Benchmark]: TraceAbstraction took 5403.99 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 85.2 MB in the beginning and 119.0 MB in the end (delta: -33.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:17,617 INFO L168 Benchmark]: Witness Printer took 72.16 ms. Allocated memory is still 176.2 MB. Free memory was 119.0 MB in the beginning and 115.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:17,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 100.7 MB. Free memory was 56.7 MB in the beginning and 56.6 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 503.03 ms. Allocated memory is still 100.7 MB. Free memory was 68.6 MB in the beginning and 56.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.23 ms. Allocated memory is still 100.7 MB. Free memory was 56.3 MB in the beginning and 54.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.95 ms. Allocated memory is still 100.7 MB. Free memory was 54.2 MB in the beginning and 53.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 665.18 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 53.0 MB in the beginning and 85.8 MB in the end (delta: -32.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5403.99 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 85.2 MB in the beginning and 119.0 MB in the end (delta: -33.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * Witness Printer took 72.16 ms. Allocated memory is still 176.2 MB. Free memory was 119.0 MB in the beginning and 115.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1575 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 41 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.6s, 89 PlacesBefore, 16 PlacesAfterwards, 91 TransitionsBefore, 14 TransitionsAfterwards, 2208 CoEnabledTransitionPairs, 8 FixpointIterations, 18 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 4 ChoiceCompositions, 102 TotalNumberOfCompositions, 2537 MoverChecksTotal - PositiveResult [Line: 690]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 28 SDtfs, 16 SDslu, 24 SDs, 0 SdLazy, 34 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 552 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...