./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI --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 a233f90faab2ceb8ddfb042463870c03c0794d3cd45b2ba20de731314559cb95 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:50:51,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:50:51,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:50:51,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:50:51,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:50:51,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:50:51,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:50:51,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:50:51,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:50:51,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:50:51,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:50:51,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:50:51,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:50:51,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:50:51,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:50:51,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:50:51,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:50:51,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:50:51,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:50:51,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:50:51,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:50:51,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:50:51,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:50:51,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:50:51,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:50:51,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:50:51,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:50:51,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:50:51,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:50:51,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:50:51,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:50:51,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:50:51,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:50:51,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:50:51,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:50:51,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:50:51,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:50:51,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:50:51,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:50:51,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:50:51,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:50:51,384 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:50:51,412 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:50:51,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:50:51,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:50:51,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:50:51,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:50:51,415 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:50:51,415 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:50:51,415 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:50:51,416 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:50:51,416 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:50:51,416 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:50:51,417 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:50:51,417 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:50:51,417 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:50:51,418 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:50:51,418 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:50:51,418 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:50:51,419 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:50:51,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:50:51,420 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:50:51,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:50:51,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:50:51,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:50:51,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:50:51,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:50:51,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:50:51,422 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:50:51,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:50:51,423 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:50:51,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:50:51,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:50:51,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:50:51,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:50:51,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:50:51,425 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:50:51,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:50:51,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:50:51,426 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:50:51,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:50:51,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:50:51,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:50:51,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a233f90faab2ceb8ddfb042463870c03c0794d3cd45b2ba20de731314559cb95 [2022-11-03 03:50:51,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:50:51,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:50:51,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:50:51,757 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:50:51,759 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:50:51,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-11-03 03:50:51,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/data/a9565b18c/656946f673dd4404a50386fbd67ccf08/FLAG793a72140 [2022-11-03 03:50:52,593 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:50:52,602 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-11-03 03:50:52,627 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/data/a9565b18c/656946f673dd4404a50386fbd67ccf08/FLAG793a72140 [2022-11-03 03:50:52,843 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/data/a9565b18c/656946f673dd4404a50386fbd67ccf08 [2022-11-03 03:50:52,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:50:52,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:50:52,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:50:52,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:50:52,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:50:52,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:50:52" (1/1) ... [2022-11-03 03:50:52,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67082674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:52, skipping insertion in model container [2022-11-03 03:50:52,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:50:52" (1/1) ... [2022-11-03 03:50:52,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:50:52,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:50:53,143 WARN L230 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_44867b61-c53f-49df-8760-ccd345ddd6c0/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2022-11-03 03:50:53,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:50:53,443 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:50:53,461 WARN L230 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_44867b61-c53f-49df-8760-ccd345ddd6c0/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2022-11-03 03:50:53,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:50:53,579 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:50:53,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:53 WrapperNode [2022-11-03 03:50:53,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:50:53,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:50:53,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:50:53,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:50:53,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:53" (1/1) ... [2022-11-03 03:50:53,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:53" (1/1) ... [2022-11-03 03:50:53,660 INFO L138 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-11-03 03:50:53,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:50:53,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:50:53,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:50:53,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:50:53,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:53" (1/1) ... [2022-11-03 03:50:53,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:53" (1/1) ... [2022-11-03 03:50:53,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:53" (1/1) ... [2022-11-03 03:50:53,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:53" (1/1) ... [2022-11-03 03:50:53,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:53" (1/1) ... [2022-11-03 03:50:53,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:53" (1/1) ... [2022-11-03 03:50:53,710 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:53" (1/1) ... [2022-11-03 03:50:53,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:53" (1/1) ... [2022-11-03 03:50:53,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:50:53,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:50:53,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:50:53,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:50:53,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:53" (1/1) ... [2022-11-03 03:50:53,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:50:53,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:50:53,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:50:53,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:50:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:50:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:50:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 03:50:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:50:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:50:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-03 03:50:53,805 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-03 03:50:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:50:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:50:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:50:53,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:50:53,807 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 03:50:53,948 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:50:53,950 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:50:54,217 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:50:54,226 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:50:54,226 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:50:54,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:50:54 BoogieIcfgContainer [2022-11-03 03:50:54,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:50:54,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:50:54,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:50:54,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:50:54,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:50:52" (1/3) ... [2022-11-03 03:50:54,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73abfa45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:50:54, skipping insertion in model container [2022-11-03 03:50:54,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:53" (2/3) ... [2022-11-03 03:50:54,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73abfa45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:50:54, skipping insertion in model container [2022-11-03 03:50:54,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:50:54" (3/3) ... [2022-11-03 03:50:54,256 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-11-03 03:50:54,267 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 03:50:54,286 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:50:54,286 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-03 03:50:54,286 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 03:50:54,348 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-03 03:50:54,418 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 03:50:54,437 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 100 transitions, 208 flow [2022-11-03 03:50:54,443 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 100 transitions, 208 flow [2022-11-03 03:50:54,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 100 transitions, 208 flow [2022-11-03 03:50:54,549 INFO L130 PetriNetUnfolder]: 2/99 cut-off events. [2022-11-03 03:50:54,549 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-03 03:50:54,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 99 events. 2/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-11-03 03:50:54,557 INFO L118 LiptonReduction]: Number of co-enabled transitions 1190 [2022-11-03 03:50:59,703 INFO L133 LiptonReduction]: Checked pairs total: 7373 [2022-11-03 03:50:59,704 INFO L135 LiptonReduction]: Total number of compositions: 90 [2022-11-03 03:50:59,739 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 28 transitions, 64 flow [2022-11-03 03:50:59,763 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 123 states, 120 states have (on average 1.85) internal successors, (222), 122 states have internal predecessors, (222), 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) [2022-11-03 03:50:59,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:50:59,790 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1dec5f52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:50:59,791 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 03:50:59,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 120 states have (on average 1.85) internal successors, (222), 122 states have internal predecessors, (222), 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) [2022-11-03 03:50:59,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 03:50:59,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:50:59,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 03:50:59,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-03 03:50:59,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:50:59,807 INFO L85 PathProgramCache]: Analyzing trace with hash 323830640, now seen corresponding path program 1 times [2022-11-03 03:50:59,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:50:59,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601225370] [2022-11-03 03:50:59,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:50:59,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:50:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:51:00,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:51:00,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:51:00,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601225370] [2022-11-03 03:51:00,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601225370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:51:00,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:51:00,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 03:51:00,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791657501] [2022-11-03 03:51:00,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:51:00,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:51:00,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:51:00,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:51:00,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:51:00,196 INFO L87 Difference]: Start difference. First operand has 123 states, 120 states have (on average 1.85) internal successors, (222), 122 states have internal predecessors, (222), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-03 03:51:00,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:51:00,269 INFO L93 Difference]: Finished difference Result 115 states and 198 transitions. [2022-11-03 03:51:00,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:51:00,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-03 03:51:00,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:51:00,281 INFO L225 Difference]: With dead ends: 115 [2022-11-03 03:51:00,281 INFO L226 Difference]: Without dead ends: 72 [2022-11-03 03:51:00,282 INFO L412 NwaCegarLoop]: 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 [2022-11-03 03:51:00,286 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:51:00,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 8 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:51:00,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-03 03:51:00,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-11-03 03:51:00,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 70 states have (on average 1.6714285714285715) internal successors, (117), 71 states have internal predecessors, (117), 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) [2022-11-03 03:51:00,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 117 transitions. [2022-11-03 03:51:00,330 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 117 transitions. Word has length 5 [2022-11-03 03:51:00,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:51:00,331 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 117 transitions. [2022-11-03 03:51:00,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-03 03:51:00,332 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 117 transitions. [2022-11-03 03:51:00,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 03:51:00,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:51:00,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:51:00,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:51:00,334 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-03 03:51:00,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:51:00,335 INFO L85 PathProgramCache]: Analyzing trace with hash 504120296, now seen corresponding path program 1 times [2022-11-03 03:51:00,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:51:00,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952932522] [2022-11-03 03:51:00,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:51:00,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:51:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:51:00,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:51:00,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:51:00,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952932522] [2022-11-03 03:51:00,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952932522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:51:00,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:51:00,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:51:00,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740357170] [2022-11-03 03:51:00,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:51:00,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:51:00,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:51:00,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:51:00,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:51:00,639 INFO L87 Difference]: Start difference. First operand 72 states and 117 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 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) [2022-11-03 03:51:00,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:51:00,723 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2022-11-03 03:51:00,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:51:00,724 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 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) Word has length 9 [2022-11-03 03:51:00,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:51:00,725 INFO L225 Difference]: With dead ends: 45 [2022-11-03 03:51:00,725 INFO L226 Difference]: Without dead ends: 39 [2022-11-03 03:51:00,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:51:00,727 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 19 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:51:00,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 0 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:51:00,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-03 03:51:00,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-03 03:51:00,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 38 states have internal predecessors, (54), 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) [2022-11-03 03:51:00,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2022-11-03 03:51:00,734 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 9 [2022-11-03 03:51:00,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:51:00,734 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2022-11-03 03:51:00,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 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) [2022-11-03 03:51:00,735 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2022-11-03 03:51:00,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 03:51:00,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:51:00,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:51:00,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:51:00,737 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-03 03:51:00,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:51:00,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1900379320, now seen corresponding path program 1 times [2022-11-03 03:51:00,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:51:00,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242864544] [2022-11-03 03:51:00,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:51:00,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:51:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:51:01,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:51:01,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:51:01,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242864544] [2022-11-03 03:51:01,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242864544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:51:01,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:51:01,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:51:01,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736115734] [2022-11-03 03:51:01,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:51:01,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:51:01,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:51:01,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:51:01,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:51:01,058 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-03 03:51:01,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:51:01,116 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2022-11-03 03:51:01,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:51:01,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2022-11-03 03:51:01,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:51:01,120 INFO L225 Difference]: With dead ends: 33 [2022-11-03 03:51:01,120 INFO L226 Difference]: Without dead ends: 27 [2022-11-03 03:51:01,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:51:01,123 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:51:01,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:51:01,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-03 03:51:01,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-03 03:51:01,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 26 states have internal predecessors, (37), 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) [2022-11-03 03:51:01,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2022-11-03 03:51:01,137 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 10 [2022-11-03 03:51:01,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:51:01,138 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2022-11-03 03:51:01,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-03 03:51:01,138 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2022-11-03 03:51:01,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 03:51:01,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:51:01,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:51:01,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:51:01,140 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-03 03:51:01,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:51:01,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1800604194, now seen corresponding path program 1 times [2022-11-03 03:51:01,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:51:01,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324600925] [2022-11-03 03:51:01,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:51:01,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:51:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:51:01,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:51:01,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:51:01,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324600925] [2022-11-03 03:51:01,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324600925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:51:01,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:51:01,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:51:01,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436847524] [2022-11-03 03:51:01,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:51:01,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:51:01,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:51:01,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:51:01,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:51:01,560 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2022-11-03 03:51:01,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:51:01,611 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2022-11-03 03:51:01,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:51:01,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2022-11-03 03:51:01,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:51:01,612 INFO L225 Difference]: With dead ends: 20 [2022-11-03 03:51:01,613 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 03:51:01,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:51:01,614 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:51:01,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:51:01,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 03:51:01,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 03:51:01,616 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) [2022-11-03 03:51:01,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 03:51:01,616 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2022-11-03 03:51:01,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:51:01,616 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 03:51:01,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2022-11-03 03:51:01,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 03:51:01,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 03:51:01,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-11-03 03:51:01,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-11-03 03:51:01,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-11-03 03:51:01,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:51:01,623 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-03 03:51:01,626 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 03:51:01,627 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:51:01,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:51:01 BasicIcfg [2022-11-03 03:51:01,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:51:01,631 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:51:01,631 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:51:01,631 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:51:01,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:50:54" (3/4) ... [2022-11-03 03:51:01,635 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 03:51:01,642 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-03 03:51:01,647 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-03 03:51:01,647 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-03 03:51:01,647 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 03:51:01,648 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:51:01,688 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 03:51:01,688 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:51:01,689 INFO L158 Benchmark]: Toolchain (without parser) took 8839.06ms. Allocated memory was 96.5MB in the beginning and 169.9MB in the end (delta: 73.4MB). Free memory was 60.0MB in the beginning and 80.0MB in the end (delta: -20.0MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2022-11-03 03:51:01,690 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 96.5MB. Free memory was 50.1MB in the beginning and 50.1MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:51:01,690 INFO L158 Benchmark]: CACSL2BoogieTranslator took 725.79ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 59.9MB in the beginning and 99.3MB in the end (delta: -39.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 03:51:01,690 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.06ms. Allocated memory is still 134.2MB. Free memory was 99.3MB in the beginning and 97.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:51:01,691 INFO L158 Benchmark]: Boogie Preprocessor took 51.65ms. Allocated memory is still 134.2MB. Free memory was 97.3MB in the beginning and 95.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:51:01,691 INFO L158 Benchmark]: RCFGBuilder took 513.87ms. Allocated memory is still 134.2MB. Free memory was 95.9MB in the beginning and 81.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-03 03:51:01,691 INFO L158 Benchmark]: TraceAbstraction took 7398.64ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 81.2MB in the beginning and 83.1MB in the end (delta: -1.9MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2022-11-03 03:51:01,692 INFO L158 Benchmark]: Witness Printer took 58.08ms. Allocated memory is still 169.9MB. Free memory was 83.1MB in the beginning and 80.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 03:51:01,694 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 96.5MB. Free memory was 50.1MB in the beginning and 50.1MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 725.79ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 59.9MB in the beginning and 99.3MB in the end (delta: -39.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.06ms. Allocated memory is still 134.2MB. Free memory was 99.3MB in the beginning and 97.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.65ms. Allocated memory is still 134.2MB. Free memory was 97.3MB in the beginning and 95.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 513.87ms. Allocated memory is still 134.2MB. Free memory was 95.9MB in the beginning and 81.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7398.64ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 81.2MB in the beginning and 83.1MB in the end (delta: -1.9MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * Witness Printer took 58.08ms. Allocated memory is still 169.9MB. Free memory was 83.1MB in the beginning and 80.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 102 PlacesBefore, 31 PlacesAfterwards, 100 TransitionsBefore, 28 TransitionsAfterwards, 1190 CoEnabledTransitionPairs, 13 FixpointIterations, 43 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 90 TotalNumberOfCompositions, 7373 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2122, positive: 1596, positive conditional: 0, positive unconditional: 1596, negative: 526, negative conditional: 0, negative unconditional: 526, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 837, positive: 776, positive conditional: 0, positive unconditional: 776, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 837, positive: 690, positive conditional: 0, positive unconditional: 690, negative: 147, negative conditional: 0, negative unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 147, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 397, positive: 175, positive conditional: 0, positive unconditional: 175, negative: 222, negative conditional: 0, negative unconditional: 222, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2122, positive: 820, positive conditional: 0, positive unconditional: 820, negative: 465, negative conditional: 0, negative unconditional: 465, unknown: 837, unknown conditional: 0, unknown unconditional: 837] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34 - 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: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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, 118 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 5 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=123occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 1.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 315 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-03 03:51:01,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44867b61-c53f-49df-8760-ccd345ddd6c0/bin/utaipan-7li7fVZpFI/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