./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stateful01-2.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_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/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_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/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_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/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 7bac82cd4a0797200932e51fab694b09c1d6fd54 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:27:21,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:21,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:21,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:21,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:21,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:21,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:21,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:21,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:21,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:21,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:21,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:21,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:21,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:21,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:21,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:21,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:21,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:21,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:21,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:21,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:21,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:21,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:21,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:21,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:21,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:21,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:21,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:21,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:21,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:21,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:21,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:21,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:21,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:21,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:21,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:21,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:21,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:21,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:21,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:21,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:21,561 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:27:21,604 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:21,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:21,605 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:21,606 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:21,606 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:21,606 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:21,606 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:27:21,606 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:21,613 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:21,613 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:27:21,614 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:27:21,615 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:21,615 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:27:21,615 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:27:21,615 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:27:21,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:21,616 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:21,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:27:21,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:21,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:21,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:27:21,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:21,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:27:21,618 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:21,618 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:21,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:27:21,619 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:21,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:27:21,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:21,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:21,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:21,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:21,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:21,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:27:21,621 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:27:21,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:27:21,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:27:21,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:21,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:21,622 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_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bac82cd4a0797200932e51fab694b09c1d6fd54 [2021-10-11 02:27:21,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:22,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:22,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:22,009 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:22,010 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:22,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread/stateful01-2.i [2021-10-11 02:27:22,091 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/bin/utaipan-WLngWcDbfI/data/b87e9badf/c80a3164e6a747589f71f860cc9d9846/FLAG69d99711b [2021-10-11 02:27:22,727 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:22,728 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/sv-benchmarks/c/pthread/stateful01-2.i [2021-10-11 02:27:22,742 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/bin/utaipan-WLngWcDbfI/data/b87e9badf/c80a3164e6a747589f71f860cc9d9846/FLAG69d99711b [2021-10-11 02:27:22,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/bin/utaipan-WLngWcDbfI/data/b87e9badf/c80a3164e6a747589f71f860cc9d9846 [2021-10-11 02:27:23,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:23,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:23,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:23,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:23,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:23,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:22" (1/1) ... [2021-10-11 02:27:23,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6196aab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:23, skipping insertion in model container [2021-10-11 02:27:23,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:22" (1/1) ... [2021-10-11 02:27:23,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:23,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:23,463 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_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/sv-benchmarks/c/pthread/stateful01-2.i[30826,30839] [2021-10-11 02:27:23,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:23,482 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:23,543 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_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/sv-benchmarks/c/pthread/stateful01-2.i[30826,30839] [2021-10-11 02:27:23,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:23,647 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:23,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:23 WrapperNode [2021-10-11 02:27:23,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:23,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:23,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:23,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:23,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:23" (1/1) ... [2021-10-11 02:27:23,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:23" (1/1) ... [2021-10-11 02:27:23,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:23,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:23,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:23,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:23,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:23" (1/1) ... [2021-10-11 02:27:23,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:23" (1/1) ... [2021-10-11 02:27:23,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:23" (1/1) ... [2021-10-11 02:27:23,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:23" (1/1) ... [2021-10-11 02:27:23,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:23" (1/1) ... [2021-10-11 02:27:23,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:23" (1/1) ... [2021-10-11 02:27:23,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:23" (1/1) ... [2021-10-11 02:27:23,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:23,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:23,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:23,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:23,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:23" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/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 02:27:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:27:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-11 02:27:23,862 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-11 02:27:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-11 02:27:23,862 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-11 02:27:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:27:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-11 02:27:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:27:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:27:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:23,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:23,865 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 02:27:24,360 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:24,361 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:27:24,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:24 BoogieIcfgContainer [2021-10-11 02:27:24,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:24,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:24,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:24,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:24,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:22" (1/3) ... [2021-10-11 02:27:24,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75688395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:24, skipping insertion in model container [2021-10-11 02:27:24,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:23" (2/3) ... [2021-10-11 02:27:24,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75688395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:24, skipping insertion in model container [2021-10-11 02:27:24,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:24" (3/3) ... [2021-10-11 02:27:24,372 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2021-10-11 02:27:24,386 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 02:27:24,386 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:24,390 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:27:24,391 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:27:24,434 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,434 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,434 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,434 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,435 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,435 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,435 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,435 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,436 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,436 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,437 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,437 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,437 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,437 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,438 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,438 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,439 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,439 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,440 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,440 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,442 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,443 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,443 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,444 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,444 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,444 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,445 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,445 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,450 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,450 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,452 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,452 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,452 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,452 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,453 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,453 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,453 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,453 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,454 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,454 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,454 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,455 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,455 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,455 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,456 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,457 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,458 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,458 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,458 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,459 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,462 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,462 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,463 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,463 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,463 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,463 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,464 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,464 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,469 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,470 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,470 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,470 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,471 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,471 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:24,483 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-11 02:27:24,493 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:27:24,525 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:24,526 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:27:24,526 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:24,526 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:24,526 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:24,527 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:24,527 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:24,527 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:24,546 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:27:24,548 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 83 transitions, 188 flow [2021-10-11 02:27:24,552 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 83 transitions, 188 flow [2021-10-11 02:27:24,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 83 transitions, 188 flow [2021-10-11 02:27:24,638 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-10-11 02:27:24,639 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-11 02:27:24,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 83 events. 2/83 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2021-10-11 02:27:24,656 INFO L116 LiptonReduction]: Number of co-enabled transitions 680 [2021-10-11 02:27:27,853 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-10-11 02:27:28,100 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-10-11 02:27:28,450 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2021-10-11 02:27:28,582 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-10-11 02:27:28,843 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2021-10-11 02:27:28,963 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-10-11 02:27:29,590 WARN L197 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 136 [2021-10-11 02:27:29,856 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-10-11 02:27:30,471 WARN L197 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 136 [2021-10-11 02:27:30,742 WARN L197 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-10-11 02:27:30,748 INFO L131 LiptonReduction]: Checked pairs total: 3225 [2021-10-11 02:27:30,749 INFO L133 LiptonReduction]: Total number of compositions: 57 [2021-10-11 02:27:30,765 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 30 transitions, 82 flow [2021-10-11 02:27:30,786 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2021-10-11 02:27:30,787 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2021-10-11 02:27:30,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:27:30,795 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:30,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:30,804 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:30,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:30,810 INFO L82 PathProgramCache]: Analyzing trace with hash 766403352, now seen corresponding path program 1 times [2021-10-11 02:27:30,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:30,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291818194] [2021-10-11 02:27:30,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:31,103 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 02:27:31,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291818194] [2021-10-11 02:27:31,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:31,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:27:31,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471264884] [2021-10-11 02:27:31,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:27:31,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:31,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:27:31,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:31,133 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2021-10-11 02:27:31,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:31,205 INFO L93 Difference]: Finished difference Result 150 states and 254 transitions. [2021-10-11 02:27:31,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:27:31,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-10-11 02:27:31,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:31,223 INFO L225 Difference]: With dead ends: 150 [2021-10-11 02:27:31,223 INFO L226 Difference]: Without dead ends: 149 [2021-10-11 02:27:31,224 INFO L677 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 [2021-10-11 02:27:31,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-10-11 02:27:31,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-10-11 02:27:31,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2021-10-11 02:27:31,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 253 transitions. [2021-10-11 02:27:31,288 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 253 transitions. Word has length 25 [2021-10-11 02:27:31,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:31,288 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 253 transitions. [2021-10-11 02:27:31,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:27:31,288 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 253 transitions. [2021-10-11 02:27:31,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:27:31,295 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:31,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:31,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:27:31,296 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:31,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:31,299 INFO L82 PathProgramCache]: Analyzing trace with hash -403540622, now seen corresponding path program 1 times [2021-10-11 02:27:31,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:31,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925477945] [2021-10-11 02:27:31,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:31,526 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 02:27:31,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925477945] [2021-10-11 02:27:31,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:31,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:27:31,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690698087] [2021-10-11 02:27:31,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:27:31,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:31,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:27:31,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:27:31,530 INFO L87 Difference]: Start difference. First operand 149 states and 253 transitions. Second operand 6 states. [2021-10-11 02:27:31,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:31,598 INFO L93 Difference]: Finished difference Result 206 states and 346 transitions. [2021-10-11 02:27:31,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:27:31,599 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2021-10-11 02:27:31,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:31,601 INFO L225 Difference]: With dead ends: 206 [2021-10-11 02:27:31,601 INFO L226 Difference]: Without dead ends: 100 [2021-10-11 02:27:31,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 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 02:27:31,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-10-11 02:27:31,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2021-10-11 02:27:31,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-10-11 02:27:31,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 163 transitions. [2021-10-11 02:27:31,609 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 163 transitions. Word has length 25 [2021-10-11 02:27:31,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:31,609 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 163 transitions. [2021-10-11 02:27:31,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:27:31,610 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 163 transitions. [2021-10-11 02:27:31,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:27:31,611 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:31,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:31,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:27:31,611 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:31,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:31,612 INFO L82 PathProgramCache]: Analyzing trace with hash -545623398, now seen corresponding path program 2 times [2021-10-11 02:27:31,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:31,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429134020] [2021-10-11 02:27:31,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:31,685 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 02:27:31,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429134020] [2021-10-11 02:27:31,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:31,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:27:31,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309686258] [2021-10-11 02:27:31,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:27:31,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:31,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:27:31,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:27:31,688 INFO L87 Difference]: Start difference. First operand 100 states and 163 transitions. Second operand 5 states. [2021-10-11 02:27:31,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:31,736 INFO L93 Difference]: Finished difference Result 100 states and 162 transitions. [2021-10-11 02:27:31,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:27:31,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 02:27:31,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:31,739 INFO L225 Difference]: With dead ends: 100 [2021-10-11 02:27:31,739 INFO L226 Difference]: Without dead ends: 73 [2021-10-11 02:27:31,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:27:31,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-11 02:27:31,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-10-11 02:27:31,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2021-10-11 02:27:31,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 111 transitions. [2021-10-11 02:27:31,757 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 111 transitions. Word has length 25 [2021-10-11 02:27:31,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:31,757 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 111 transitions. [2021-10-11 02:27:31,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:27:31,761 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 111 transitions. [2021-10-11 02:27:31,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:27:31,761 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:31,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:31,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:27:31,762 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:31,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:31,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1267328780, now seen corresponding path program 2 times [2021-10-11 02:27:31,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:31,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462528871] [2021-10-11 02:27:31,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:31,906 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 02:27:31,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462528871] [2021-10-11 02:27:31,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:31,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:27:31,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627216709] [2021-10-11 02:27:31,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:27:31,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:31,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:27:31,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:27:31,910 INFO L87 Difference]: Start difference. First operand 73 states and 111 transitions. Second operand 6 states. [2021-10-11 02:27:31,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:31,958 INFO L93 Difference]: Finished difference Result 72 states and 110 transitions. [2021-10-11 02:27:31,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:27:31,959 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2021-10-11 02:27:31,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:31,960 INFO L225 Difference]: With dead ends: 72 [2021-10-11 02:27:31,960 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:27:31,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 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 02:27:31,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:27:31,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:27:31,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:27:31,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:27:31,961 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-10-11 02:27:31,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:31,962 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:27:31,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:27:31,962 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:27:31,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:27:31,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:27:31,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:27:31 BasicIcfg [2021-10-11 02:27:31,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:27:31,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:27:31,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:27:31,967 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:27:31,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:24" (3/4) ... [2021-10-11 02:27:31,971 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:27:31,977 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-11 02:27:31,977 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-11 02:27:31,983 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-11 02:27:31,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:27:31,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:27:31,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:27:32,039 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed2f975-fd6a-4855-89cb-040ff4a0a7af/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:27:32,042 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:27:32,043 INFO L168 Benchmark]: Toolchain (without parser) took 9041.49 ms. Allocated memory was 98.6 MB in the beginning and 182.5 MB in the end (delta: 83.9 MB). Free memory was 60.5 MB in the beginning and 102.0 MB in the end (delta: -41.5 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:32,044 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 98.6 MB. Free memory was 78.1 MB in the beginning and 78.1 MB in the end (delta: 69.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:32,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 647.47 ms. Allocated memory is still 98.6 MB. Free memory was 60.3 MB in the beginning and 56.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:32,045 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.43 ms. Allocated memory is still 98.6 MB. Free memory was 56.1 MB in the beginning and 54.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:32,049 INFO L168 Benchmark]: Boogie Preprocessor took 48.78 ms. Allocated memory is still 98.6 MB. Free memory was 54.1 MB in the beginning and 52.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:32,049 INFO L168 Benchmark]: RCFGBuilder took 577.48 ms. Allocated memory is still 98.6 MB. Free memory was 52.9 MB in the beginning and 64.9 MB in the end (delta: -12.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:32,050 INFO L168 Benchmark]: TraceAbstraction took 7600.79 ms. Allocated memory was 98.6 MB in the beginning and 182.5 MB in the end (delta: 83.9 MB). Free memory was 64.5 MB in the beginning and 105.1 MB in the end (delta: -40.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:32,050 INFO L168 Benchmark]: Witness Printer took 75.25 ms. Allocated memory is still 182.5 MB. Free memory was 105.1 MB in the beginning and 102.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:32,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 98.6 MB. Free memory was 78.1 MB in the beginning and 78.1 MB in the end (delta: 69.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 647.47 ms. Allocated memory is still 98.6 MB. Free memory was 60.3 MB in the beginning and 56.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.43 ms. Allocated memory is still 98.6 MB. Free memory was 56.1 MB in the beginning and 54.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.78 ms. Allocated memory is still 98.6 MB. Free memory was 54.1 MB in the beginning and 52.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 577.48 ms. Allocated memory is still 98.6 MB. Free memory was 52.9 MB in the beginning and 64.9 MB in the end (delta: -12.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7600.79 ms. Allocated memory was 98.6 MB in the beginning and 182.5 MB in the end (delta: 83.9 MB). Free memory was 64.5 MB in the beginning and 105.1 MB in the end (delta: -40.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 16.1 GB. * Witness Printer took 75.25 ms. Allocated memory is still 182.5 MB. Free memory was 105.1 MB in the beginning and 102.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 473 VarBasedMoverChecksPositive, 47 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 181 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.1s, 87 PlacesBefore, 35 PlacesAfterwards, 83 TransitionsBefore, 30 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 57 TotalNumberOfCompositions, 3225 MoverChecksTotal - PositiveResult [Line: 727]: 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 3 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.2s, HoareTripleCheckerStatistics: 137 SDtfs, 80 SDslu, 251 SDs, 0 SdLazy, 60 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 12912 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...