./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 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF --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 3fb83c29fe591f537beeb8acce355ea986d79a29cfcecdcee0a9fb1725d601d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:32:29,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:32:29,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:32:29,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:32:29,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:32:29,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:32:29,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:32:29,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:32:29,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:32:29,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:32:29,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:32:29,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:32:29,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:32:29,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:32:29,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:32:29,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:32:29,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:32:29,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:32:29,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:32:29,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:32:29,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:32:29,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:32:29,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:32:29,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:32:29,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:32:29,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:32:29,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:32:29,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:32:29,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:32:29,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:32:29,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:32:29,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:32:29,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:32:29,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:32:29,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:32:29,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:32:29,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:32:29,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:32:29,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:32:29,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:32:29,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:32:29,618 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 02:32:29,649 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:32:29,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:32:29,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:32:29,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:32:29,651 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:32:29,652 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:32:29,652 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:32:29,652 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:32:29,652 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:32:29,653 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:32:29,653 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:32:29,653 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:32:29,653 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:32:29,654 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:32:29,654 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:32:29,654 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:32:29,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:32:29,655 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:32:29,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:32:29,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:32:29,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:32:29,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:32:29,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:32:29,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:32:29,657 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:32:29,657 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:32:29,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:32:29,658 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:32:29,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:32:29,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:32:29,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:32:29,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:32:29,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:32:29,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:32:29,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:32:29,660 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:32:29,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:32:29,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:32:29,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:32:29,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:32:29,662 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_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fb83c29fe591f537beeb8acce355ea986d79a29cfcecdcee0a9fb1725d601d1 [2021-11-13 02:32:29,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:32:29,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:32:29,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:32:29,979 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:32:29,980 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:32:29,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/pthread-lit/qw2004-1.i [2021-11-13 02:32:30,051 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/data/81229bc10/70a36818cff7450f81a78d1a6e18394c/FLAG35da5d85b [2021-11-13 02:32:30,734 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:32:30,735 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/sv-benchmarks/c/pthread-lit/qw2004-1.i [2021-11-13 02:32:30,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/data/81229bc10/70a36818cff7450f81a78d1a6e18394c/FLAG35da5d85b [2021-11-13 02:32:30,987 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/data/81229bc10/70a36818cff7450f81a78d1a6e18394c [2021-11-13 02:32:30,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:32:30,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:32:30,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:32:30,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:32:30,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:32:30,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:32:30" (1/1) ... [2021-11-13 02:32:31,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3896004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:31, skipping insertion in model container [2021-11-13 02:32:31,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:32:30" (1/1) ... [2021-11-13 02:32:31,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:32:31,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:32:31,526 WARN L228 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_91292724-ade1-49a4-a3f3-1c53e5b87d64/sv-benchmarks/c/pthread-lit/qw2004-1.i[30003,30016] [2021-11-13 02:32:31,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:32:31,566 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:32:31,629 WARN L228 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_91292724-ade1-49a4-a3f3-1c53e5b87d64/sv-benchmarks/c/pthread-lit/qw2004-1.i[30003,30016] [2021-11-13 02:32:31,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:32:31,673 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:32:31,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:31 WrapperNode [2021-11-13 02:32:31,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:32:31,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:32:31,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:32:31,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:32:31,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:31" (1/1) ... [2021-11-13 02:32:31,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:31" (1/1) ... [2021-11-13 02:32:31,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:32:31,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:32:31,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:32:31,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:32:31,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:31" (1/1) ... [2021-11-13 02:32:31,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:31" (1/1) ... [2021-11-13 02:32:31,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:31" (1/1) ... [2021-11-13 02:32:31,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:31" (1/1) ... [2021-11-13 02:32:31,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:31" (1/1) ... [2021-11-13 02:32:31,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:31" (1/1) ... [2021-11-13 02:32:31,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:31" (1/1) ... [2021-11-13 02:32:31,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:32:31,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:32:31,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:32:31,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:32:31,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:31" (1/1) ... [2021-11-13 02:32:31,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:32:31,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:32:31,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:32:31,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:32:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2021-11-13 02:32:31,837 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2021-11-13 02:32:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 02:32:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-13 02:32:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:32:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:32:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 02:32:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-13 02:32:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:32:31,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:32:31,839 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 02:32:32,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:32:32,187 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 02:32:32,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:32:32 BoogieIcfgContainer [2021-11-13 02:32:32,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:32:32,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:32:32,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:32:32,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:32:32,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:32:30" (1/3) ... [2021-11-13 02:32:32,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae4cf49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:32:32, skipping insertion in model container [2021-11-13 02:32:32,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:31" (2/3) ... [2021-11-13 02:32:32,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae4cf49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:32:32, skipping insertion in model container [2021-11-13 02:32:32,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:32:32" (3/3) ... [2021-11-13 02:32:32,238 INFO L111 eAbstractionObserver]: Analyzing ICFG qw2004-1.i [2021-11-13 02:32:32,244 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 02:32:32,254 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:32:32,254 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 02:32:32,254 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 02:32:32,293 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,293 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,294 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,294 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,294 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,295 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,295 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,295 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,296 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,296 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,296 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,297 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,297 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,297 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,298 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,298 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,299 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,299 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,299 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,299 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,300 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,300 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,300 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,301 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,301 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,302 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,302 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,302 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,303 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,303 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,303 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,303 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,304 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,304 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,305 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,305 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,306 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,306 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,306 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,307 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,307 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,307 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,308 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,308 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,309 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,309 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,310 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,310 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,310 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,310 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,311 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,311 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,312 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,312 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,312 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,313 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,313 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,314 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,314 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,314 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,318 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,319 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,319 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,319 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,320 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,320 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,320 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,321 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,321 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,321 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,322 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:32:32,323 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-13 02:32:32,427 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:32:32,445 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 02:32:32,445 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 02:32:32,476 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-13 02:32:32,506 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 114 transitions, 233 flow [2021-11-13 02:32:32,511 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 114 transitions, 233 flow [2021-11-13 02:32:32,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 114 transitions, 233 flow [2021-11-13 02:32:32,625 INFO L129 PetriNetUnfolder]: 6/113 cut-off events. [2021-11-13 02:32:32,625 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-13 02:32:32,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 113 events. 6/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 112 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2021-11-13 02:32:32,642 INFO L116 LiptonReduction]: Number of co-enabled transitions 3480 [2021-11-13 02:32:36,566 INFO L131 LiptonReduction]: Checked pairs total: 3438 [2021-11-13 02:32:36,567 INFO L133 LiptonReduction]: Total number of compositions: 128 [2021-11-13 02:32:36,576 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 35 flow [2021-11-13 02:32:36,586 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 17 states, 16 states have (on average 1.6875) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:36,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 16 states have (on average 1.6875) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:36,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 02:32:36,593 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:36,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-13 02:32:36,594 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 02:32:36,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:36,599 INFO L85 PathProgramCache]: Analyzing trace with hash 14037496, now seen corresponding path program 1 times [2021-11-13 02:32:36,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:32:36,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938778032] [2021-11-13 02:32:36,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:36,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:32:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:36,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:32:36,798 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:32:36,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938778032] [2021-11-13 02:32:36,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938778032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:36,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:36,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-13 02:32:36,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959404755] [2021-11-13 02:32:36,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:36,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:32:36,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:32:36,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:32:36,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:32:36,828 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.6875) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:36,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:36,861 INFO L93 Difference]: Finished difference Result 13 states and 18 transitions. [2021-11-13 02:32:36,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:32:36,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-13 02:32:36,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:36,873 INFO L225 Difference]: With dead ends: 13 [2021-11-13 02:32:36,873 INFO L226 Difference]: Without dead ends: 13 [2021-11-13 02:32:36,874 INFO L932 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 [2021-11-13 02:32:36,879 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.62ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:36,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.56ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 18.62ms Time] [2021-11-13 02:32:36,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-13 02:32:36,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-13 02:32:36,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:36,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2021-11-13 02:32:36,911 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 18 transitions. Word has length 4 [2021-11-13 02:32:36,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:36,912 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-11-13 02:32:36,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:36,912 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2021-11-13 02:32:36,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 02:32:36,913 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:36,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:32:36,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 02:32:36,914 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 02:32:36,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:36,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1515059433, now seen corresponding path program 1 times [2021-11-13 02:32:36,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:32:36,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008610618] [2021-11-13 02:32:36,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:36,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:32:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:37,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:32:37,039 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:32:37,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008610618] [2021-11-13 02:32:37,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008610618] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:37,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:37,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 02:32:37,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131000936] [2021-11-13 02:32:37,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:37,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:32:37,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:32:37,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:32:37,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:32:37,042 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:37,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:37,117 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2021-11-13 02:32:37,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:32:37,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-13 02:32:37,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:37,118 INFO L225 Difference]: With dead ends: 14 [2021-11-13 02:32:37,118 INFO L226 Difference]: Without dead ends: 12 [2021-11-13 02:32:37,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:32:37,121 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.64ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.28ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:37,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.64ms Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 33.28ms Time] [2021-11-13 02:32:37,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-13 02:32:37,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-13 02:32:37,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:37,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-11-13 02:32:37,128 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 16 transitions. Word has length 7 [2021-11-13 02:32:37,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:37,128 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-11-13 02:32:37,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:37,128 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2021-11-13 02:32:37,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 02:32:37,129 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:37,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:32:37,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 02:32:37,130 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 02:32:37,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:37,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1515080823, now seen corresponding path program 2 times [2021-11-13 02:32:37,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:32:37,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217196875] [2021-11-13 02:32:37,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:37,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:32:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:37,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:32:37,246 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:32:37,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217196875] [2021-11-13 02:32:37,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217196875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:37,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:37,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 02:32:37,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559921696] [2021-11-13 02:32:37,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:37,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:32:37,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:32:37,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:32:37,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:32:37,248 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:37,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:37,287 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2021-11-13 02:32:37,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:32:37,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-13 02:32:37,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:37,288 INFO L225 Difference]: With dead ends: 16 [2021-11-13 02:32:37,288 INFO L226 Difference]: Without dead ends: 9 [2021-11-13 02:32:37,289 INFO L932 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 [2021-11-13 02:32:37,290 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.48ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.24ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:37,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.48ms Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 25.24ms Time] [2021-11-13 02:32:37,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-13 02:32:37,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-13 02:32:37,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:37,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-13 02:32:37,293 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2021-11-13 02:32:37,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:37,293 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-13 02:32:37,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:37,293 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-13 02:32:37,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 02:32:37,294 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:37,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:32:37,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 02:32:37,294 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 02:32:37,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:37,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1577814903, now seen corresponding path program 3 times [2021-11-13 02:32:37,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:32:37,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333281852] [2021-11-13 02:32:37,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:37,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:32:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:37,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:32:37,369 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:32:37,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333281852] [2021-11-13 02:32:37,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333281852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:37,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:37,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 02:32:37,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060651103] [2021-11-13 02:32:37,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:37,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:32:37,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:32:37,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:32:37,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:32:37,371 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:37,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:37,395 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2021-11-13 02:32:37,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:32:37,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-13 02:32:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:37,396 INFO L225 Difference]: With dead ends: 9 [2021-11-13 02:32:37,396 INFO L226 Difference]: Without dead ends: 9 [2021-11-13 02:32:37,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:32:37,398 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.21ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.35ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:37,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 20 Unknown, 0 Unchecked, 0.21ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 16.35ms Time] [2021-11-13 02:32:37,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-13 02:32:37,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-13 02:32:37,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-11-13 02:32:37,401 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 7 [2021-11-13 02:32:37,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:37,401 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-11-13 02:32:37,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:37,402 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-11-13 02:32:37,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 02:32:37,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:37,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:32:37,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 02:32:37,403 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 02:32:37,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:37,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1667342069, now seen corresponding path program 1 times [2021-11-13 02:32:37,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:32:37,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139788369] [2021-11-13 02:32:37,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:37,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:32:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:32:37,434 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:32:37,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139788369] [2021-11-13 02:32:37,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139788369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:37,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:37,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 02:32:37,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993060029] [2021-11-13 02:32:37,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:37,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:32:37,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:32:37,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:32:37,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:32:37,436 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:37,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:37,444 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2021-11-13 02:32:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:32:37,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-13 02:32:37,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:37,444 INFO L225 Difference]: With dead ends: 6 [2021-11-13 02:32:37,444 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 02:32:37,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:32:37,446 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.20ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:37,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 5 Unknown, 0 Unchecked, 0.05ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 6.20ms Time] [2021-11-13 02:32:37,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 02:32:37,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 02:32:37,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:37,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 02:32:37,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-11-13 02:32:37,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:37,448 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 02:32:37,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:32:37,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 02:32:37,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 02:32:37,451 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-13 02:32:37,451 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-13 02:32:37,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 02:32:37,453 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2021-11-13 02:32:37,455 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-13 02:32:37,456 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 02:32:37,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:32:37 BasicIcfg [2021-11-13 02:32:37,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 02:32:37,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 02:32:37,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 02:32:37,459 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 02:32:37,460 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:32:32" (3/4) ... [2021-11-13 02:32:37,462 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 02:32:37,468 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure BCSP_PnpStop [2021-11-13 02:32:37,473 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-13 02:32:37,474 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 02:32:37,474 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 02:32:37,474 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 02:32:37,508 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 02:32:37,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 02:32:37,509 INFO L158 Benchmark]: Toolchain (without parser) took 6517.67ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 86.2MB in the beginning and 57.2MB in the end (delta: 29.0MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2021-11-13 02:32:37,510 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:32:37,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.11ms. Allocated memory is still 117.4MB. Free memory was 85.9MB in the beginning and 83.4MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 02:32:37,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.68ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 81.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:32:37,511 INFO L158 Benchmark]: Boogie Preprocessor took 26.51ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 79.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:32:37,511 INFO L158 Benchmark]: RCFGBuilder took 451.94ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 66.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 02:32:37,512 INFO L158 Benchmark]: TraceAbstraction took 5256.49ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 65.9MB in the beginning and 60.4MB in the end (delta: 5.5MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2021-11-13 02:32:37,512 INFO L158 Benchmark]: Witness Printer took 49.67ms. Allocated memory is still 142.6MB. Free memory was 60.4MB in the beginning and 57.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:32:37,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 681.11ms. Allocated memory is still 117.4MB. Free memory was 85.9MB in the beginning and 83.4MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.68ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 81.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.51ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 79.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 451.94ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 66.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5256.49ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 65.9MB in the beginning and 60.4MB in the end (delta: 5.5MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. * Witness Printer took 49.67ms. Allocated memory is still 142.6MB. Free memory was 60.4MB in the beginning and 57.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 112 PlacesBefore, 17 PlacesAfterwards, 114 TransitionsBefore, 15 TransitionsAfterwards, 3480 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 4 ChoiceCompositions, 128 TotalNumberOfCompositions, 3438 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3058, positive: 2995, positive conditional: 0, positive unconditional: 2995, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2521, positive: 2480, positive conditional: 0, positive unconditional: 2480, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2521, positive: 2464, positive conditional: 0, positive unconditional: 2464, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 57, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 149, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3058, positive: 515, positive conditional: 0, positive unconditional: 515, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 2521, unknown conditional: 0, unknown unconditional: 2521] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 690]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 139 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 99.68ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 81.47ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 86 mSolverCounterSat, 1.93ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-13 02:32:37,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91292724-ade1-49a4-a3f3-1c53e5b87d64/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE